Hypothalamic osmoreceptors are nearest to
a. angiotensin-secreting cells
b. carotid baroreceptors
c. the adrenal cortex
d. the adrenal medulla
e. vasopressin-secreting cells
E
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Which of the following is NOT true of a gene?
A. It is all the triplets needed to make a functional RNA or protein. B. It is a segment of a DNA molecule. C. It is the functional unit of heredity. D. Each chromosome contains one gene. E. All of the choices are true.
Which of the following membranes covers the surface of a mature bone?
A. Peritendineum B. Peritoneum C. Perimysium D. Periosteum E. Perichondrium
Unlike chemical synapses, electrical synapses ________.
A. provide adjacent cells with the ability to act in a coordinated fashion B. allow communication between cells with larger distances between the membranes C. are the method of connection between adjacent neurons D. are not dependent on the movement of ions across a plasma membrane
The ________ contains vesicles filled with acetylcholine.
A) axon terminal B) motor end plate C) neuromuscular junction D) synaptic cleft E) transverse tubule