Marianne has small, bruise-like spots on her skin and a low platelet count. These blemishes are most likely
A. pinpricks.
B. blood blisters.
C. hematomas.
D. petechiae.
Answer: D
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Axons of the lower motor neurons of the lateral corticospinal tracts innervate
A. axial skeletal muscle. B. skeletal muscles that control skilled movements in the limbs. C. muscles of the respiratory system. D. skeletal muscles of the upper back and neck. E. muscles of the lower digestive tract.
Rib 7 is a __________ rib.
A. true B. floating C. false D. pelvic E. cartilaginous
Along with insulin, amylin is a hormone that a diabetic pancreas fails to produce. It is comprised of a long chain of amino acids. It cannot cross the cell membrane, so it binds to a receptor on the cell surface to elicit an action. Which hormone class is amylin?
A. A protein hormone B. A peptide hormone C. A steroid hormone D. A prostaglandin
A small gap called a ________ cleft lies between a presynaptic neuron and postsynaptic cell.
Fill in the blank(s) with the appropriate word(s).