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Comprehensive Reproductive System and Hormonal Regulation in BIOL 2252 – Questions With A+ Solutions

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Comprehensive Reproductive System and Hormonal Regulation in BIOL 2252 – Questions With A+ Solutions

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Comprehensive Reproductive System and
Hormonal Regulation in BIOL 2252 – Questions
With A+ Solutions

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Terms in this set (136)



What are the primary sex organs in Males: Testes; Females: Ovaries
males and females?


What are the two main functions of Produce gametes and secrete sex hormones.
primary sex organs?


What is the difference between Gonads are the primary sex organs; gametes are the
gonads and gametes? reproductive cells produced by gonads.


What are the male and female Male gametes: sperm; Female gametes: ova.
gametes?


Define primary sex characteristics and Structures present at birth involved in reproduction.
give three examples for each sex. Males: Testes, penis, vas deferens. Females: Ovaries,
uterus, vagina.


List five secondary sex characteristics Facial and body hair, deeper voice, increased muscle
for males. mass, broader shoulders, Adam's apple enlargement.


List five secondary sex characteristics Breast development, widening of hips, fat deposition
for females. in hips/thighs/breasts, less body hair than males,
higher voice.


When do secondary sex During puberty (ages 10-14 for females, 12-16 for
characteristics typically develop? males).


What is spermatogenesis? The process of sperm production.

, What is oogenesis? The process of ovum production.


What is the timing and duration of Begins at puberty, continuous throughout life (~74
spermatogenesis? days per cycle).


What is the timing and duration of Begins before birth, arrests until puberty, then one
oogenesis? per month until menopause.


How many functional gametes are 4 functional sperm per spermatogonium.
produced in spermatogenesis?


How many functional gametes are 1 functional ovum per oogonium (plus 2-3 polar
produced in oogenesis? bodies).


What does HPG stand for? Hypothalamic-Pituitary-Gonadal axis.


What are the three main anatomical Hypothalamus, anterior pituitary gland, gonads.
structures involved in the HPG axis?


What is GnRH and where is it Gonadotropin-Releasing Hormone, produced in the
produced? hypothalamus.


What does GnRH stimulate? Stimulates the anterior pituitary to release FSH and
LH.


What is the role of LH in males? Stimulates interstitial (Leydig) cells to produce
testosterone.


What is the role of FSH in males? Stimulates sustentacular (Sertoli) cells to support
spermatogenesis.


What does LH do in females? Triggers ovulation and stimulates corpus luteum to
produce progesterone.


What does FSH do in females? Stimulates follicle development and estrogen
production by follicle cells.

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