Marianne has small, bruise-like spots on her skin and a low platelet count. These
blemishes are most likely
A) blood blisters. B) pinpricks.
C) petechiae. D) hematomas.
C
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To stimulate skeletal muscle contraction, acetylcholine must cross the _____ of the neuromuscular junction and bind to receptors on the motor endplate
a) node of Ranvier b) synaptic cleft c) sarcolemma d) synaptic end bulb e) transverse tubule
The thymus is
A. larger in children. B. larger in adults. C. the same size in adults and children.
Which of the following would be classified as a lipid?
A. Starch - a polysaccharide B. Alanine - an amino acid C. Cholesterol - a steroid D. Sucrose - a disaccharide E. Catalase - an enzyme
Which of the following arteries is not part of the cerebral arterial circle (circle of Willis)?
A. anterior communicating artery B. posterior cerebellar artery C. posterior communicating artery D. anterior cerebral artery E. internal carotid artery