Which structure in the figure is the corpus spongiosum penis?
a) F
b) D
c) C
d) E
e) G
a
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Mammals have ___ key classes of immunoglobulins
A) 3 B) 4 C) 5 D) 6 Fill in the blank with the correct answer.
Answer the following statements true (T) or false (F)
1. Osmotic pressure is created by the presence in a fluid of small diffusible molecules that easily move through the capillary membrane. 2. The cerebral arterial circle (circle of Willis) is an arterial anastomosis. 3. The outermost layer of a blood vessel is the tunica intima. 4. The thick-walled arteries close to the heart are called muscular arteries. 5. Hypotension is generally considered systolic blood pressure that is below 100 mm Hg.
Slow muscle fibers
A) have less oxygen than do fast fibers. B) are about two-thirds the diameter of fast fibers. C) can continue to contract long after fast fibers have fatigued. D) take twice as long to contract after stimulation as do fast fibers. E) None of the answers are correct.
Rods and cones have a G protein called ____________________
Fill in the blank(s) with correct word