Module 6 exam 6 endocrine system w w w w w
Question 1 w
pts
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Explain two reasons why a woman with low levels of LH would not be able to become pregnant.
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(1) LH acts on the ovary to cause ovulation to occur. (2) LH causes progesterone release to
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wfacilitate potential fertilization of the egg and pregnancy. Progesterone is a key hormone for
w w w w w w w w w w w w w
wthe maintenance of pregnancy.
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Question 2 w
pts
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Would you expect a female to have testosterone in their bloodstream? Explain why or why not.
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(1) Yes. Both male and female bodies produce “all” the sex hormones. However, the ratios
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ware different. w
(2) The adrenal glands are largely responsible for producing this “opposite” hormone that
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wthe ovaries would not.
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Question 3 w
pts
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Label the endocrine glands (A-C)
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A:
w w
B: w
C: w
, A: Pineal gland
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B: Hypothalamus
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C: Pituitary gland
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Question 4 w
pts
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Explain the concept of positive feedback. Give an example of a hormone that works through
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positive feedback.
w w
.
1- Positive feedback is the action of a hormone increasing the production of that hormone.
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(This is the opposite of negative feedback).
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2- One example is the action of oxytocin causing the uterus to contract during labor.
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Oxytocin enhances the effect of the uterus contractions, causing more oxytocin to be
w w w w w w w w w w w w w
Question 1 w
pts
w w w
Explain two reasons why a woman with low levels of LH would not be able to become pregnant.
w w w w w w w w w w w w w w w w w
(1) LH acts on the ovary to cause ovulation to occur. (2) LH causes progesterone release to
w w w w w w w w w w w w w w w w
wfacilitate potential fertilization of the egg and pregnancy. Progesterone is a key hormone for
w w w w w w w w w w w w w
wthe maintenance of pregnancy.
w w w
Question 2 w
pts
w w w
Would you expect a female to have testosterone in their bloodstream? Explain why or why not.
w w w w w w w w w w w w w w w
(1) Yes. Both male and female bodies produce “all” the sex hormones. However, the ratios
w w w w w w w w w w w w w
ware different. w
(2) The adrenal glands are largely responsible for producing this “opposite” hormone that
w w w w w w w w w w w
wthe ovaries would not.
w w w
Question 3 w
pts
w w w
Label the endocrine glands (A-C)
w w w w
A:
w w
B: w
C: w
, A: Pineal gland
w w
B: Hypothalamus
w w
C: Pituitary gland
w w w
Question 4 w
pts
w w w
Explain the concept of positive feedback. Give an example of a hormone that works through
w w w w w w w w w w w w w w
positive feedback.
w w
.
1- Positive feedback is the action of a hormone increasing the production of that hormone.
w w w w w w w w w w w w w
(This is the opposite of negative feedback).
w w w w w w w
2- One example is the action of oxytocin causing the uterus to contract during labor.
w w w w w w w w w w w w w
Oxytocin enhances the effect of the uterus contractions, causing more oxytocin to be
w w w w w w w w w w w w w
