1. What hormone is released by the hypothalamus to regulate the anterior pituitary? 2. What hormones are released by the anterior pituitary to regulate the gonads? 3. Which of these hormones stimulates spermatogenesis in males?
1. What hormone is released by the hypothalamus to regulate the anterior pituitary? 2. What hormones are released by the anterior pituitary to regulate the gonads? 3. Which of these hormones stimulates spermatogenesis in males?
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:The reproductive system is regulated primarily using hormones produced in the hypothalamus and anterior pituitary. These
hormones regulate both gamete production and the male and female hormones. The male and female hormones in turn
regulate secondary sex characteristics.
Use the diagrams below and your knowledge of the reproductive system to answer the following questions:
Hypothalamus
Anterior
pituitary
Ⓡ
Inhibin
3.
4.
5.
6.
FSH
7.
O
8.
2
@T
GnRH
LH
O!
Interstitial
cells
Via portal
blood
cell
-Testosterone
Sustentacular
cells
7
Seminiferous
tubule
@
-Spermatogenic sites
Somatic and
psychological
effects at
other body
- Stimulates
Inhibits
Stimulates
Inhibits
Slightly
elevated
estrogen
and rising
inhibin
levels.
d
FSH
2
GORH
Granulosa,
cells
Early and midfollicular phases
1. What hormone is released by the hypothalamus to regulate the anterior pituitary?
2. What hormones are released by the anterior pituitary to regulate the gonads?
LH
Ⓡ
Thecal
cells
Androgens
Convert
-Inhibin androgens to @
estrogens
How does this result in a negative feedback cycle?
Travels via
portal blood
Anterior pituitary
Which of these hormones stimulates spermatogenesis in males?
Which of these hormones stimulates oogenesis in females?
Which of these hormones stimulates testosterone production in males?
9. Rising sperm count causes the release of which hormone?
Positive
feedback
exerted by
large in
estrogen
output.
Ruptured
follicle
Hypothalamus+
Ⓡ
LH surge
6
Mature follicle Ovulated-
secondary
oocyte
(7)
Progesterone
Estrogens
Inhibin
to
Corpus luteum
Which of these hormones primarily stimulates estrogen and progesterone production in females?
Hormones are often regulated by negative feedback; testosterone, estrogen and progesterone all inhibit the
production of which hormones?
Late follicular
and luteal phases-
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