The three regions of lymph node aggregations in the body are the ____, armpits, and neck
a. ankles
b. groin
c. wrists
d. knees
b
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Which muscles arise from the skull and often attach to the skin?
A. Muscles of mastication B. Muscles of the pharynx C. Extrinsic eye muscles D. Muscles that move the tongue E. Muscles of facial expression
Fatty acids consist mainly of carbon and hydrogen, and so fatty acids are
A. nonpolar and do not dissolve in water.?B. nonpolar and dissolve in water.?C. polar and do not dissolve in water.?D. polar and dissolve in water.
A muscle not innervated by a plantar nerve is the
A. extensor digitorum brevis. B. flexor digitorum brevis. C. plantar interossei. D. lumbricals. E. flexor hallucis brevis.
What valve prevents the backflow of blood from the right ventricle into the right atrium?
A) pulmonary valve B) bicuspid (mitral) valve C) aortic valve D) tricuspid valve