As blood flows through the vasa recta alongside the ascending limb of the nephron loop, the blood is flowing
A. toward the cortex.
B. deep into the medulla.
B
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Excess triglycerides are stored in adipose tissue. Adipose tissue functions
A. to assist the body in temperature homeostasis. B. pads and protects. C. energy storage. D. insulates. E. All of these choices are correct.
The reason much of the blood in the fetal right atrium is shunted to the left atrium through the foramen ovale is
A. the blood pressure in the left atrium is greater than in the right atrium. B. the fetus is in an antigravity situation provided by the amnionic fluid. C. there is a valve that directs the blood that way. D. the umbilical arteries have valves. E. the blood pressure in the right atrium is greater than in the left atrium.
A threshold stimulus is the
A) depolarization necessary to cause an action potential. B) peak of an action potential. C) hyperpolarization of an axon. D) resting membrane potential. E) electrical current that crosses the synaptic cleft.
A not uncommon endocrine condition in the elderly is ________ which can lead to hair loss and mental sluggishness.
A. diabetes insipidus B. hypothyroidism C. Graves' disease D. Parkinson's disease