which receptor is responsible for telling the brain to increase blood flow
Answers
Answer:
The receptors responsible for signaling the brain to increase blood flow are primarily found in blood vessels and are known as endothelial cells.
Explanation:
These cells line the inner surface of blood vessels and are in direct contact with the blood.
When there is a need for increased blood flow to a specific area, such as during exercise or in response to injury, these endothelial cells release signaling molecules called vasodilators.
One of the key vasodilators is nitric oxide (NO). Nitric oxide diffuses into the surrounding smooth muscle cells in the blood vessel walls, causing them to relax.
This relaxation, in turn, leads to the dilation (widening) of blood vessels, allowing for increased blood flow to the area.Additionally, other factors and receptors can also influence blood flow regulation.
For example, the sympathetic nervous system, through the release of norepinephrine, can constrict blood vessels and decrease blood flow in certain situations.
To know more on vasodilators,
https://brainly.com/question/13258282#
#spj11
Related Questions
what relatively recent fossil discovery has helped us understand the transition between the lobe-finned fishes and the tetrapods?
Answers
Tiktaalik's recent fossil discovery has helped us understand the transition between the lobe-finned fishes and the tetrapods.
Early lobe-finned fishes are hard fish with plump, lobed, matched blades, which are joined to the body by a solitary bone.
The discovery of well-preserved pelves and a portion of the pelvic fin from Tiktaalik roseae, a 375 million-year-old transitional species between fish and the first animals with legs, indicates that improved hind fins were the actual starting point for the evolution of hind legs.
The non-tetrapod Osteichthyes (bony fish) Tiktaalik was discovered in the Arctic of Canada. It has scales and gills, but it has a triangular, flattened head and unusual, cleaver-shaped fins.
know more about Tiktaalik roseae here: https://brainly.com/question/23433591
#SPJ4
A homozygous dominant man marries a woman with PKU. What is the probability (%) their child will be a carrier for PKU?
Answers
As seen from the Punnett square, 50% of the offspring will be carriers of PKU (Dp).
What is the genetic basis for Phenylketonuria (PKU) and how is it inherited?
Phenylketonuria (PKU) is a genetic disorder that is caused by a recessive allele (p). To be affected with PKU, an individual must inherit two copies of the recessive allele, one from each parent.
If a homozygous dominant man (who has the genotype DD) marries a woman with PKU (who has the genotype Pp), the probability of their child being a carrier of PKU (having the genotype Pp) is 50%. This is because each parent has a 50% chance of passing on either their dominant D allele or their recessive p allele to their child. When the child inherits one D allele from the homozygous dominant father and one p allele from the mother with PKU, the child will be a carrier for PKU.
The Punnett square for this cross is as follows:
| D | D
--|---|--
p | Dp| Dp
p | Dp| Dp
As seen from the Punnett square, 50% of the offspring will be carriers of PKU (Dp).
To learn more about Punnett square follow the given link: https://brainly.com/question/29635392
#SPJ1
I need help with 3 questions
1. The name of the scientist who first noticed the magnetic effect of current.
2. The switches are being used in place of fuses.
3. A diagram made using symbols of electric components.
Answers
Answer:
your answer'sExplanation:
I hope it help you
If the parent strand of DNA is 3’ A-T-G-G-C-T-T-A-C 5’ what will the daughter strand be?
Answers
Answer:
Explanation:
What that guy sed
Part C. One student wants to change the track so that the potential energy of the marble from 1 point to 5 it's constant explain how the student could change to track so that the potential energy of the marble is constant and explain why that change will keep the potential energy constant?
Answers
The student can alter the track of the marble by making it a level, level track with no slant or decrease. By doing so, the marble will not involvement any alter in height, and so its potential vitality will stay steady.
What is the potential energy constant?Potential energy is subordinate on the stature of an question over the ground or a reference point. When the marble is on an slanted track, it picks up potential vitality because it moves higher and loses potential vitality because it moves lower due to changes in stature.
In the event that the track is flat, the marble will not involvement any alter in tallness, and thus its potential vitality will not alter.
Learn more about potential energy from
https://brainly.com/question/14427111
#SPJ1
Calculate the relative formula
mass of HNO3
Answers
63 units.
Relative formulae mass is the average mass of one molecule of an element to 1/12 of mass of a carbon 12 atom.
HNO3 is the formula for Nitric Acid. It comprises of one atom of H, one of n, 3 atoms of oxygen.
molar mass of one H hydrogen atom = 1
molar mass of one N nitrogen atom =14
molar mass of one O oxygen atom =16
molar mass of one molecule of HNO3 = 1+ 14+ 3(16) = 63
Hence the formulae mass of HNO3 is 63 units.
To know more about relative formula mass, consider the given link below:
https://brainly.com/question/28823664
#SPJ4
molecular mass of HNO3
= mass of H atom + mass of nitrogen atom + 3 x mass of oxygen atom
=1+14+48=63u
What is known as HNO3?
Nitric acid (HNO3) is an industrial chemical used to make fertilisers and explosives. It is a colourless, fuming, and extremely corrosive liquid with freezing and boiling points of 42 and 83 degrees Celsius, respectively.
Image representing what "hno3" means
The uses of HNO3 are powerful oxidising agent is HNO3. It can be produced by ammonia being catalytically oxidised. It is a typical laboratory reagent and a crucial chemical in the production of fertilisers and explosives. Nitric acid has a PH of roughly 3.01.
To learn more about HNO3 reffer to:
https://brainly.com/question/24322641
Chec
When Mendel crossed a plant with green peas and a plant with yellow peas, what color peas did the offspring have?
O All offspring had green peas.
O All offspring had yellow peas.
O Half of the offspring had yellow peas and half had green peas.
O Some of the offspring had yellow peas and some had yellow-green peas
Answers
Answer:
The answer is B: All offspring had yellow peas.
Explanation:
:)
Number of cells in the plant kingdom ?
Answers
Explanation:
Hey, there !!
Your question is though because plants are both multicellular and unicellular.
So, let me give you a little idea from whatever i have known.
Inside plant kingdom, there are three divisions,
Thallophyta = composed of mostly unicellular cells.Bryophyta = composed of multicellular cells.Pteridophyta = composed of multicellular cells.These are the information. but if its about type of cells, there are various type of cells such as xylem cells,phloem cells, parenchyma cells, collenchyma cells etc.
Hope it helps..
Why were the pea traits that Mendel studied not reflective of most genetic traits? T
he traits had simple and discrete phenotypes with no in-between states. The traits were strongly influenced by certain environmental signals. The traits exhibited dominant and recessive inheritance patterns. The traits were controlled by alternative alleles at one gene. The traits had a continuous distribution of phenotypic variation.
Answers
The pea traits that Mendel studied were important for establishing the principles of inheritance, but they are not representative of most genetic traits. This is due to their unique combination of simple and discrete phenotypes, and dominant and recessive inheritance patterns.
The pea traits that Gregor Mendel studied were important in the development of modern genetics, but they are not representative of most genetic traits.
This is due to several factors that made the pea traits unique.Simple and discrete phenotypes: Mendel studied traits such as flower colour and seed shape, which had clear-cut and easily recognizable phenotypes. Most genetic traits, however, have more complex and variable phenotypes that are difficult to categorize.Environmental influence: The pea traits were largely unaffected by environmental factors, meaning that their expression was consistent across different growing conditions. This is not the case for most genetic traits, which are often influenced by a variety of environmental factors, such as temperature, nutrition, and stress.Dominant and recessive inheritance: The pea traits exhibited dominant and recessive inheritance patterns, where dominant alleles mask the expression of recessive alleles. This was a key finding for Mendel and helped establish the principles of inheritance. However, many genetic traits do not exhibit such simple inheritance patterns, with multiple genes and environmental factors contributing to their expression.Controlled by one gene: The pea traits were controlled by alternative alleles at one gene, meaning that they were determined by a single gene locus. Most genetic traits, however, are controlled by multiple genes, making them much more complex to study and understand.Continuous variation: The pea traits had a continuous distribution of phenotypic variation, meaning that there were no clear-cut categories of expression. This is in contrast to most genetic traits, which have more complex patterns of inheritance, with multiple genes and environmental factors contributing to their expression.To learn more about pea traits here:
https://brainly.com/question/1287451#
#SPJ11
Do polar bears hibernate?
Answers
Although polar bears are renowned for their capacity to endure extreme cold, but they do not hibernate like other bears.
Some animals go into a profound sleep known as hibernation throughout the winter to conserve energy. An animal's body temperature dips, their heart rate slows, and their metabolism decreases during hibernation. This enables them to survive on fat reserves when food is in short supply.
Polar bears do not hibernate, nevertheless, for a number of reasons. First of all, they reside in a setting where food is constantly accessible. Polar bears do not need to accumulate fat reserves in the summer in order to survive the winter, in contrast to bears who dwell in temperate regions. All year long, they can always find food.
Second, polar bears do not need to lower their body temperature in order to conserve energy because they can endure extremely low temperatures. They are protected from the cold by a thick coating of fat and fur, and they can somewhat lower their metabolism without going into a full state of hibernation.
For more such questions on hibernate.
https://brainly.com/question/28619201#
#SPJ11
Which birthmarks are characterized by pink, patch-like lesions that occur from permanent blood vessel abnormalities?
Answers
Although they can form anywhere on the body, strawberry hemangiomas (also known as strawberry marks, nevus vascularis, capillary hemangiomas, or hemangioma simplex) are most frequently found on the face, scalp, back, or chest. They are made up of tiny, narrowly spaced-out blood vessels. They may not be present at birth, but they may appear after a few weeks.
What do birthmarks entail ?Any patch or mark that develops on the skin at birth or very shortly after is referred to as a birthmark. They are common, and many young people have some sort of mark. The majority are benign, and some even go away as the child becomes older. Sometimes a birthmark might be a sign of other conditions or illnesses.
Birthmarks with vascular characteristics result from abnormal blood vessel growth. Either they are wider than usual or there are an excessive number.Learn more about Birthmark here:
https://brainly.com/question/11377056
#SPJ4
HELPPPPPPPPPPPP PLEASE!!
Answers
what do u have to do? do you match them?
brainliest to right answer Describe how proteins are used in active and passive transport. How do they differ?
Answers
Answer:
Active transport works against the concentration gradient, moving substances from areas of low concentration to areas of high concentration. While passive transport moves from areas of high concentration to areas of low concentration. The protein is used as a channel for active transport.
Explanation:
An essential amino acid can be synthesized in the body if caloric intake is adequate. cannot be synthesized in the body in sufficient quantity to meet body needs. can be formed in the body from nonessential amino acids. can be synthesized in the body if there is a nitrogen source.
Answers
Answer:
cannot be synthesized in the body in sufficient quantity to meet body needs.
Explanation:
Amino acids are defined as the structural units which make up the proteins in our bodies. They help to break down foods, repair tissues, and serves many more functions.
Our body is not capable of making the essential amino acids that are required by the body. They should be come from the food we eat. And hence the essential amino acids cannot be synthesized in our body in the sufficient quantity to meet our body needs.
Please help! skin melanocytes produce the protein melanin, which gives the skin pigment. muscle cells do not produce melanin. which statement explains this difference between skin melanocytes and muscle cells?
A. muscle cells rely on rna, while melanocytes rely on dna.
B. melanocytes and muscle cells express different genes.
C. muscle cells destroyed the gene for melanin, but melanocytes did not.
D. melanocytes contain different genes from muscle cells
Answers
Answer:
The correct answer is B. "Melanocytes and muscle cells express different genes."
Although all cells in an organism (such as a human) contain the same DNA, different cell types express different sets of genes. Gene expression is the process by which specific genes are activated to produce a needed protein. In this case, the gene responsible for melanin production is expressed in melanocytes, but not in muscle cells.
This does not mean that muscle cells have destroyed the gene for melanin (as stated in option C) or that melanocytes contain different genes from muscle cells (as stated in option D). All cells within an organism contain the same genes, but not all genes are expressed in every cell. The process of gene expression is regulated by the cell to ensure that each cell type functions properly.
Option A is also incorrect because all cells, including both muscle cells and melanocytes, rely on both DNA (for storing genetic information) and RNA (for transmitting that information and producing proteins). DNA is transcribed into RNA, which is then translated into proteins. This process occurs in all cells.
The statement explains the difference between skin melanocytes and muscle cells is - melanocytes and muscle cells express different genes. So option b is correct.
Melanocytes are dark, dendritic-shaped, highly differentiated cells that secrete melanin, a pigment found in melanosomes, which is the primary function of melanocytes.
Melanocytes are a type of cell derived from the neural crest. They form a synapse with keratinocytes through their dendrites in the epidermis. Melanocytes play an important part in skin pigmentation and their role in the generation and distribution of melanin has been extensively studied.
To learn more about melanocytes, refer to the link:
https://brainly.com/question/12896990
#SPJ2
you continue to observe the neurons from the previous couple of questions. assume that neuron z has a resting membrane potential of -65 mv. if only neuron y fires an action potential (and neuron x does not), what type of response would you observe in the membrane potential of neuron z?
Answers
The voltage-gated sodium channels begin to function after the cell is hyperpolarized (below -65 mV, the resting membrane potential). The action potential was induced in the PN by depolarizing it to 40 mV, and the EPSP was captured at 65 mV.
Slower to open voltage-gated potassium channels are now opening in the membrane as the membrane potential hits +30 mV. On K+, an electrochemical gradient also has an effect. The membrane potential starts to return to its resting voltage as K+ begins to depart the cell, carrying a positive charge with it. A neuron's resting membrane potential is approximately -70 mV (mV is millivolts); hence, the interior of the neuron is 70 mV negative of the exterior.
To know more about hyperpolarized, click here:
https://brainly.com/question/12982897
#SPJ4
Pollen and Ovules are gametes. How many chromosomes would they have compared to the rest of the plant's body cells? What process made them that way?
Answers
Answer:
a. They would have half chromosomes as much as the plants body cells.
b. Meiosis
Explanation:
Gametes are sex cells produced only in sexually reproducing organisms. In plants as stated in this question, male gametes are contained in pollens while female gametes are contained in ovules. The process by which these gametes are made is called MEIOSIS.
Meiosis is a cell division that reduces the chromosomal number of the parent cell by half. This means that each GAMETE will contain half the number of chromosomes as the parent cell. Fir example, if the body cell of a plant contains 30 chromosomes, each gamete formed via Meiosis in that plant will have 15 chromosomes.
In a nutshell, pollen and ovules, which are gametes of plants formed by MEIOSIS would have half chromosomes as much as the plants body cells.
What is the route of blood flow in a closed system?.
Answers
Answer:
In a closed circulatory system, blood is contained inside blood vessels and circulates unidirectionally from the heart around the systemic circulatory route, then returns to the heart again, as illustrated in Figure 21.2a.
Explanation:
(k) During biological N removal, what happens in the anoxic zone? i) NOx generation ii) High in NOx iii) Converting NOx to N2 iv) No additional organic addition (1) Which EPA requirement should be fulfilled to apply biosolids to land without further pathogen regulation? i) Class A requirement ii) Class B requirement iii) 1" biosolids requirement iv) Class 1 requirement (m) Which is more acutely toxic? i) LD50 = 5 mg/kg BW ii) LD50 = 1000 mg/kg BW (n) Under what circumstances can a registered engineer sign and seal plans or documents he/she did not prepare? i) Registered engineers can coordinate ii) Under no circumstances. projects that include segments that they are not competent in if a qualified registered engineer signs and scals plans or documents for those segments of the project iii) If the plans or documents were prepared iv) When practicing in a state different than by someone under the registered engineer's the one in which the engineer is registered. direct supervision and the registered engineer is an expert in the subject matter.
Answers
4. Which kingdom has organisms such as algae that are unicellular, but complex?
O Plantae
O Protista
O Fungi
O Archaebacteria
Answers
Answer: Algae(Fungi)
Answer:
It is B Protista.
Explanation:
PLS Mark Brainlist.
1. What two factors must be present in order for something to be called "matter?"
Answers
Answer:
has a mass and occupies space
Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
Answers
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
Learn more about germination.
https://brainly.com/question/1675149
#SPJ11
Jenny johnson is 26 years old and jason johnson is 29 years old. the couple has been trying to conceive for a year with no success. jenny and jason already have one healthy child that is now 4 years old. jason was recently diagnosed with celiac disease.
jason hormone levels
total volume
1.3 ml
progesterone
15.5 ng/ml
0.8 ng/ml
sperm concentration
5.2 million/ml
luteinizing hormone
19.0 iu/l
1.1 iu/l
motility
29%
prolactin
5.1 ng/ml
11.0 ng/ml
forward progression (0-4)
1
testosterone
42.2 ng/dl
2800 ng/dl
normal morphology
12%
estradiol
247.8 pg/ml
31.9 pg/ml
total sperm count
10.7 million
follicle stimulating hormone
13.9 miu/ml
12.0 miu/ml
total motile sperm
1.3 million
total functional sperm
700,000
required:
a. list any issues in the case background that could impact the couple's fertility. research these issues and explain if/how/why they impact fertility.
b. list any abnormal test results. research these abnormal results to determine how/why they impact fertility.
c. after researching the background and abnormal test results, what could be causing infertility for this couple?
Answers
Issues in the case background that could impact the couple's fertility are age and previous successful pregnancy. Abnormal test results that could impact fertility include low sperm concentration. male factor infertility and age-related fertility decline could be causing infertility for this couple.
a. Issues in the case background that could impact the couple's fertility include:
1. Age: Jenny is 26 and Jason is 29, which is considered within the reproductive age range. However, as women age, their fertility decreases, making it harder to conceive.
2. Previous successful pregnancy: The fact that Jenny and Jason already have one healthy child suggests that they have the ability to conceive, but it's unclear why they're having trouble conceiving again.
3. Jason's celiac disease diagnosis: Celiac disease can lead to malabsorption of nutrients, including vitamins and minerals that are essential for fertility and reproductive health.
b. Abnormal test results that could impact fertility include:
1. Low sperm concentration: Jason's sperm concentration is 5.2 million/ml, which is below the normal range of 15-200 million/ml. This may reduce the chances of fertilization.
2. Low motility: Jason's sperm motility is 29%, while normal motility is typically above 40%. This means that a lower percentage of his sperm are capable of moving effectively towards the egg.
3. Abnormal morphology: Jason's normal morphology is 12%, below the normal range of 15-30%. This indicates that a smaller proportion of his sperm have the correct shape and structure for successful fertilization.
c. Based on the background and test results, possible causes of infertility for this couple could include:
1. Male factor infertility: Jason's abnormal test results suggest potential male factor infertility, which can be caused by low sperm concentration, poor motility, and abnormal sperm morphology.
2. Age-related fertility decline: While Jenny is still within the reproductive age range, it's important to consider that female fertility decreases with age, which could contribute to their difficulty in conceiving.
Learn more about fertility -
brainly.com/question/26059016
#SPJ11
how the rates of measles vaccine has declined over time?
Answers
Answer:
Even though a safe and cost-effective vaccine is available, in 2018, there were more than 140 000 measles deaths globally, mostly among children under the age of five.
Measles vaccination resulted in a 73% drop in measles deaths between 2000 and 2018 worldwide
In 2018, about 86% of the world's children received one dose of measles vaccine by their first birthday through routine health services – up from 72% in 2000.
During 2000- 2018, measles vaccination prevented an estimated 23.2 million deaths making measles vaccine one of the best buys in public health.
About 85% of the children globally have received this vaccine as of 2013...
what is aerobic respiration
Answers
Explain where photosynthesis takes place? What is the function of this organelle?
Answers
Answer:
Chloroplast
its function is to create chemical energy using light energy
Explanation:
Photosynthesis occurs in chloroplasts which can be compared to mitochondria because they both produce energy for the organism. The Chloroplast contains within it a pigment, chlorophyll which captures the sun's energy and turns into energy which is used to create other parts of photosynthesis. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis. Chloroplasts are one of the many organelles found in the body, and are generally considered to have originated as endosymbiotic cyanobacteria. In this aspect, they are similar to mitochondria but are found only in plants and protist.
80 POINTS
-----------------
please help me and i will give brainliest
Answers
Explanation:
Interphase
number of cells- two new
two new
number of chromosomes- 46 chromosomes
number of homologous- 23 pairs of homologues
After cells have finished dividing their chromosomes, and cytokinesis has divided the cell membrane, the two new cells enter the first stage of interphase,
Cytokinesis
number of cells- two daughter cells
Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.
Answer:.
Explanation:
.
After 24 hours of incubation, you observe 200 colonies present on an LB plate onto which you had previously spread 50 uL of a cell suspension. What is the concentration of the cell suspension? Include your units in your answer.
Answers
The concentration of the cell suspension can be calculated by dividing the number of cells spread on the plate by the volume spread. The answer would be (200 colonies)/(50 uL) = 4 x 10^5 cells/mL.
The concentration of a cell suspension can be determined by counting the number of colonies that have formed on an agar plate after incubation. The number of colonies indicates the number of viable cells present in the original cell suspension.
To calculate the concentration, divide the number of colonies by the volume of the cell suspension spread on the plate, and then multiply by the dilution factor, if any.
In the scenario described, after 24 hours of incubation, 200 colonies were observed on an LB plate to which 50 uL of the cell suspension was spread. To determine the concentration of the cell suspension, divide the number of colonies (200) by the volume of the cell suspension spread on the plate (50 uL), and then multiply by the dilution factor, if any.
This calculation will give the concentration of the cell suspension in cells per unit volume, typically expressed as cells per milliliter (cells/mL).
Learn more about "cell suspension" here:
https://brainly.com/question/21445787
#SPJ11
PCR was used to amplify a specific 500-base section of DNA from three birds of the same species that were thought to be related. The three samples of amplified DN
were run on an electrophoresis gel. Three bands were seen on the gel that were exactly the same size. Are the birds related?
Answers
Yes, the birds are likely related based on the fact that they all have the same size band on the electrophoresis gel after PCR amplification.
On the diagram below,circle the following
Answers
Answer:
where is the following??
Answer:
an electron in the hydrogen atom makes a transition from an energy state of principle quantum number ni to n=2state if the photon is emitted has a wavelength of 434 what is the value of the ni