which would be a homeostatic mechanism of the temperature of the testes was too high? 1....

which would be a homeostatic mechanism of the temperature of the testes was too high?

1. contraction of cremaster muscle

2. vasodilation of testicular artery

3. relaxation of cremaster muscle

4. peristalsis of ductus deferens

5. contraction of dartos muscle

Expert Solution

CORRECT ANSWER IS OPTION 3 - RELACATION OF CREMASTER MUSCLE

Normally the temperature of the testis regulated at 35 degree celsius , that is 2 degree celsius less than the body temperature. The temperature of the testis is kept below the normal body temperature because the spermatogenesis is affected by the temperature.

The optimim tempeature for the spermatogenesis is 35 degree celsius.

This temperature regulation is by different mechanism

one is by cremastric Reflex.

When the temperature of the testis become high, it is regulated by the relaxation of the cremasteric muscle present in the spermatic cord.when the cremasteric muscle relaxes, the testis will descend downward away from the body

When the temperature of the testis become low, it is regulated by the rcontraction of the cremasteric muscle present in the spermatic cord.when the cremasteric muscle contract, the testis will move upward closer to the body

2) Dartos muscle

when the temperature is raised , the dartos muscle will relax and increases the surface area for the heat loss

when the temperature is low, dartos muscle will contract and reduces the heat loss by reducinng the Surface area.

Sydney Mullin answered 1 year ago

Establishing Proof for linked (correlated) requires a mechanism (high standard, often too high to meet). Alan...

Establishing Proof for linked (correlated) requires a mechanism (high standard, often too high to meet). Alan Eller has spent more than a decade trying to convince the Department of Veterans Affairs that his bladder cancer was the result of exposure to Agent Orange almost 50 years ago in Vietnam. The Army vet has filed three claims with the agency, most recently in 2014, since a doctor told him the cancer was likely tied to the toxic herbicide. Each time, even...

If the temperature is too high when NaBH4 is added to already reacted NaOH and Vanillin,...

If the temperature is too high when NaBH4 is added to already reacted NaOH and Vanillin, what is the mechanism of the decomposition of NaBH4? does NaBH4 become more reactive with H2O instead of the carbonyl group on vanillin which would instead produce NaBO2 and Hydrogen gas?

In which case below would you predict males to have the largest testes size? a. Mates...

In which case below would you predict males to have the largest testes size? a. Mates are strictly monogamous. b. Females freely mate with multiple males. c. Males closely defend groups of females from other males. d. Males are able to “seal off” the female’s reproductive tract after mating.

37. The combined symptoms of high metabolism, high CNS activity, and high body temperature would indicate...

37. The combined symptoms of high metabolism, high CNS activity, and high body temperature would indicate excess secretion of: a. cortisol b. epinephrine c. Growth hormone d. Thyroid hormone (T3/T4) 5. The sub- mucosa layer of the digestive organs is most likely to a. contain specialized glands, blood vessels and nerves b. contain smooth muscle and myenteric plexus nerves c. contain villi, microvilli and goblet cells d. All of the above 21. During the intestinal phase digestion a. chyme enters...

Question 7 7-Most homeostatic mechanism in animals are regulated by: 1-Group of answer choices 2-evaporative cooling...

Question 7 7-Most homeostatic mechanism in animals are regulated by: 1-Group of answer choices 2-evaporative cooling 3-positive feedback loops 4-density independent populations limitations 5-negative feedback loops Question 8 8-Which of the following is the most exclusive (smallest) group that would include an earthworm, a star fish, a crab, and a rotifer? 1-Group of answer choices 2-Lophotrochozoa 3-Eumetazoa 4-Deuterostomia 5-Metazoa 6-Bilateria

describe the reflex homeostatic control mechanism of the gastrointestinal system that occur within phases. Receptors, processing...

describe the reflex homeostatic control mechanism of the gastrointestinal system that occur within phases. Receptors, processing center, and effectors

What would happed to the creation of jobs if the government deficit gets too high? How...

What would happed to the creation of jobs if the government deficit gets too high? How would it impact economic growth?

How does taking in too much oxygen impact the human body and what homeostatic systems does...

How does taking in too much oxygen impact the human body and what homeostatic systems does your body have to correct an excess amount of oxygen?

If the interest coverage ratio is too high, then the ROE is too low, Agree or...

If the interest coverage ratio is too high, then the ROE is too low, Agree or Not ? What the three factor affect ROE and how higher ROE lead to higher share price ?

Which of the following would be the result of increasing the temperature at which GC is...

Which of the following would be the result of increasing the temperature at which GC is run? I knew this would cause a faster elution time because temperature increases kinetic energy but I am not sure how this results in poorer seperation. Can you explain what it means by "seperation" . I watched videos on the Gas Chromatography but I am not clear on how things are seperated----i thought that the more volatile will adhere less to the liquid stationary...

Question