Deoxygenated blood enters the heart from the body through what structure?
A. Superior and inferior vena cavae
B. Pulmonary vein
C. Aorta
D. Coronary artery
Answer: A
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Which duct transports bile to and from the gallbladder?
A. Common bile duct B. Hepatic duct C. Hepatopancreatic duct D. Pancreatic duct E. Cystic duct
Parasympathetic preganglionic axons
1.are shorter than parasympathetic postganglionic axons.
2.are shorter than sympathetic preganglionic axons.
3.release the same neurotransmitter as that released by sympathetic postganglionic axons.
4.release a different neurotransmitter than that released by sympathetic preganglionic axons.
5.release the same neurotransmitter as that released by parasympathetic postganglionic axons.\
The most abundant component of plasma is
A) ions. B) proteins. C) water. D) gases. E) nutrients.
In what segment of the nephron is the greatest fraction of filtered water reabsorbed?
A. the proximal tubule B. the ascending limb of the loop of Henle C. the distal convoluted tubule D. the collecting ducts E. the descending limb of the loop of Henle