Which branch of a spinal nerve serves the deep muscles and skin of the posterior surface of the trunk?
a) Meningeal branch
b) Rami communicantes
c) Brachial plexus
d) Posterior ramus
e) Anterior ramus
d
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In the Barany test, what is the expected response of the eyes to rotation in a chair when the head is tilted 90 degrees onto the shoulder?
A. Up and down nystagmus B. Random eye movements C. Rotary nystagmus D. Side to side nystagmus E. No eye movement
When observing someone lift a heavy object, which of the following is likely to be the angle of interest regarding back injury?
A. absolute angle of the trunk B. relative angle of the trunk C. absolute angle of the knee D. relative angle of the knee
The countercurrent multiplier is a negative feedback mechanism.
Answer the following statement true (T) or false (F)
What is the primary effect of a decrease in the hematocrit of elderly individuals?
a. reduction in the maximum cardiac output b. damage to ventricular cardiac muscle fibers c. lowering of the oxygen-carrying capacity of the blood d. thrombus formation in the blood vessels