On the ventral surface of the brain, you can observe the optic nerves and chiasma, the pituitary gland, and the mammillary bodies. These externally visible structures form the floor of the __________.
A. brain stem
B .diencephalon
C. occipital lobe
D. frontal lobe
Answer: B .diencephalon
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Which muscle group is involved when a "pulled groin" occurs?
A) lateral rotators B) quadriceps C) hamstrings D) thigh adductors
Prominent muscular ridges, which extend along the inner surface of the right auricle, across the adjacent anterior wall of the right atrium are called ________.
A) moderator bands B) pectinate muscles C) trabeculae carneae D) papillary muscles E) chordae tendineae
The "buffy coat" is made up of thrombocytes and leukocytes.
Answer the following statement true (T) or false (F)
In the slow block to polyspermy, sperm penetration releases an inflow of ________, which in turn stimulates the ________
A) K+; zona pellucida B) Ca2+; fertilization membrane C) Na+; fertilization membrane D) Ca2+; cortical reaction E) Cl-; corona radiata