Polymodal neurons are:
A. afferent neurons.
B. interneurons that receive synaptic input from different kinds of sensory units.
C. part of specific ascending sensory pathways.
D. interneurons that receive synaptic input from only one type of sensory unit.
E. efferent neurons.
B
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Proteins
A) contain C, H, O, and N, and sometimes S. B) are structural materials. C) all of the above. D) can function as enzymes.
Which are the least numerous of the leukocytes?
A. Eosinophils B. Basophils C. Monocytes D. Lymphocytes E. Neutrophils
To voluntarily control urination, the ________ nervous system innervates the ________.
A) somatic : internal urethral sphincter B) somatic : detrusor muscle C) somatic : external urethral sphincter D) autonomic : internal urethral sphincter E) autonomic : external urethral sphincter
Endocrine glands secrete their hormones directly into the blood by the means of a duct system from the gland to the blood vessel.
a. true b. false