Which part of the reflex arc is associated with interneurons?
a. sensory receptor
b. afferent pathway
c. integrating center
d. efferent pathway
e. effector
C
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The ________ is the major source of parasympathetic output.
Fill in the blank(s) with the appropriate word(s).
A spinal nerve passing through the intervertebral foramen is
A) composed of efferent fibers only. B) associated with the vertebra above. C) composed of afferent fibers only. D) associated with cranial nerve C1.
The proper buffer pair ratio is:
a. 20 times more sodium bicarbonate than carbonic acid b. 20 times more carbonic acid than sodium bicarbonate c. 10 times more sodium bicarbonate than carbonic acid d. 10 times more carbonic acid than sodium bicarbonate
The ________ receive(s) blood from all of the cardiac veins.
A. inferior vena cava B. superior vena cava C. pulmonary veins D. coronary sinus