Which vertebra is called the "vertebra prominens"?
A. T1
B. C2
C. C7
D. C1
Answer: C
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The functional unit of a skeletal muscle fiber is the
A) Sarcolemma. B) Sarcomere. C) Sarcoplasmic reticulum. D) Myofibril. E) Myofilament
The period from conception until birth is the ________ period.
A. embryonic B. conceptual C. prenatal D. germinal E. fetal
Which factor would reduce total peripheral resistance?
a. adrenal medulla hormones. b. angiotensin II. c. increased hematocrit. d. anaphylaxis. e. cardiovascular center activity.
. Which sympathetic pathway involves a preganglionic neuron that synapses with a ganglionic neuron in a sympathetic trunk ganglion, but the postganglionic axon does not leave the trunk via a gray ramus?
A. Splanchnic nerve pathway B. Adrenal medulla pathway C. Postganglionic sympathetic nerve pathway D. Spinal nerve pathway E. None of the choices is correct.