Spinal interneurons prevent muscle antagonists from interfering with an intended movement by
A) activating reverberating circuits.
B) initiating a tendon reflex.
C) initiating a crossed extensor reflex.
D) the process of reciprocal inhibition.
E) initiating a stretch reflex.
D) the process of reciprocal inhibition.
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Paired, irregular masses of gray matter buried deep within the central white matter in the basal region of the cerebral hemispheres, inferior to the floor of the lateral ventricle, are the
A. corpus callosi. B. interthalamic adhesions. C. ventricular connections. D. cerebral nuclei. E. inferior colliculi.
The speed of nerve impulse conduction depends solely upon the diameter of the axon.
Answer the following statement true (T) or false (F)
The major cation in extracellular fluid is
A) sodium. B) potassium. C) calcium. D) magnesium. E) iron.
Which of the following structures is found in the renal medulla?
A. Proximal convoluted tubule B. Distal convoluted tubule C. Loop of Henle D. Glomerular capsule