Blood in the pulmonary veins returns to the
A. right atrium.
B. left ventricle.
C. right ventricle.
D. coronary sinus.
E. left atrium.
Answer: E
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What chemical is released from aggregated platelets and stimulates the platelets to produce thromboxane A2?
A) ADP B) thromboxane A2 C) arachidonic acid D) prostacyclin E) protein C
The neurotransmitter(s) associated with autonomic ganglia is (are) ________
A) norepinephrine (NE) B) dopamine C) acetylcholine (ACh) D) acetylcholine (ACh) and norepinephrine (NE) E) dopamine and norepinephrine (NE)
Structure G is the
A) retina. B) sclera. C) choroid. D) ciliary body. E) cornea.
The effect of a neurotransmitter on the muscle cell membrane is to modify its ion permeability properties temporarily
Indicate whether the statement is true or false