tests, the fertility expert discovers that Alex has a very low sperm count but normal levels of testosterone in his blood. The fertility expert also discovers that, during a one month period, Stephanie's levels of estrogen do not change or fluctuate but are rather always at the same level. What endocrine pathways/physiology would explain how Alex can have normal levels of testosterone but have a low sperm count? FSH must be low because this hormone directly influences sperm production. LH normal because this hormone directly influences testosterone production. FSH is normal because this hormone directly influences testosterone production. LH is low because this hormone directly influences sperm production. Both FSH and LH are low as together these both directly influence sperm production Both FSH and LH are high. High levels of FSH and LH produce negative feedback to reduce sperm production 0000
tests, the fertility expert discovers that Alex has a very low sperm count but normal levels of testosterone in his blood. The fertility expert also discovers that, during a one month period, Stephanie's levels of estrogen do not change or fluctuate but are rather always at the same level. What endocrine pathways/physiology would explain how Alex can have normal levels of testosterone but have a low sperm count? FSH must be low because this hormone directly influences sperm production. LH normal because this hormone directly influences testosterone production. FSH is normal because this hormone directly influences testosterone production. LH is low because this hormone directly influences sperm production. Both FSH and LH are low as together these both directly influence sperm production Both FSH and LH are high. High levels of FSH and LH produce negative feedback to reduce sperm production 0000
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Alex and Stephanie want to have a baby but have been encountering some difficulty. After trying for a year they decide to see a fertility expert. After running many different
tests, the fertility expert discovers that Alex has a very low sperm count but normal levels of testosterone in his blood. The fertility expert also discovers that, during a one month
period, Stephanie's levels of estrogen do not change or fluctuate but are rather always at the same level.
What endocrine pathways/physiology would explain how Alex can have normal levels of testosterone but have a low sperm count?
FSH must be low because this hormone directly influences sperm production. LH normal because this hormone directly influences testosterone production.
FSH is normal because this hormone directly influences testosterone production. LH is low because this hormone directly influences sperm production.
Both FSH and LH are low as together these both directly influence sperm production
Both FSH and LH are high. High levels of FSH and LH produce negative feedback to reduce sperm production
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