The coronary arteries emerge at the base of the __________.
a. aorta
b. circumflex branch
c. pulmonary trunk
d. inferior vena cava
Ans: a. aorta
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In a resting neuron, the area just inside of the cell membrane is more _____ than the area just outside of the cell membrane.
A. positive B. negative
Electrical synapses involve coupling of neurons by
A. synaptic clefts. B. desmosomes. C. gap junctions. D. satellite cells.
Each testis is covered by connective tissue called the ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is the best definition of physiology?
A) the study of the tissues and organs of the human body B) the study of body structures C) the study of how the body functions and of the work that cells must do to keep the body stable and operating efficiently D) the study of human growth and development