Which of the following substances found in sustentacular cells may be the active hormones that promote sperm cell formation?
A. Dihydrotestosterone and estrogen
B. Androgen-binding protein and testosterone
C. IgA and IgG
D. Estrogen and progesterone
E. Sustentaculum and gubernaculum
Answer: A
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What effect would the changing estrogen and progesterone levels during parturition have on lactation?
A. Decreased TRH B. Decreased OT C. Increased dopamine D. Increased PRL
Which secondary brain vesicle forms the portion of the adult brain that includes the epithalamus, thalamus, and hypothalamus?
A. Metencephalon B. Telencephalon C. Mesencephalon D. Diencephalon E. Myelencephalon
Which of the following topics might be studied by biomechanists?
A. optimal form during the pole vault B. forces on the spine during lifting C. the mechanics of the jump shot D. all of the above
The epidermis is made mostly of dense (fibrous) connective tissue
Indicate whether the statement is true or false