ALS 3304 Exam 1 Questions and Correct
Answers/ Latest Update / Already Graded
What are the 4 parts of the Scrotum?
Ans: epididymis
tunica dartos
scrotal fascia
parietal vaginal tunica
What does the epididymis act as?
Ans: thermosensor - sweat glands
What are sweat glands in the epididymis innervated by?
Ans: sympathetic nerves
If an animal experiences an elevated temperature, which part of the
brain reacts and how?
Ans: hypothalamus - sends impulses to sweat glands --> causes
animal to sweat and cools testes
Besides the hypothalamus sending impulses to sweat glands, what
other way does the epididymis cool by?
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Ans: heat transfer
What is the tunica dartos a part of?
Ans: scrotum
What kind of muscle is tunica dartos and what is it described as?
Ans: smooth muscle layer under skin (mesh-like)
What is the function of tunica dartos?
Ans: elevate testes for a sustained time
What is constantly being adjusted in the tunica dartos muscle and what
is it in response to?
Ans: contractions b/c of change in scrotal skin temperature
When the tunica dartos muscle contracts, what does it allow?
Ans: body & testes to be close
An increase in surface area in the tunica dartos muscle causes what two
occurrences?
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Ans: perspiration, which leads to cooling
How is the tunica dartos muscle able to contract?
Ans: androgen
What is the scrotal fascia and what is it a part of?
Ans: layers underneath scrotal skin; scrotum
What is the parietal vaginal tunic a part of?
Ans: scrotum
What does the spermatic cord do?
Ans: suspend testes
What does the spermatic cord house?
Ans: vas deferens, cremaster muscle, pampiniform plexus
What does the spermatic cord connect?
Ans: epididymis to pelvic urethra through the vas deferens
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