The ability of an antigen to react specifically with the antibodies or cells it has provoked is called
a) Specificity
b) Immunogenicity
c) Reactivity
d) Epitopes
e) Immune Response
c
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A young girl falls while riding her bicycle. Initially she seems fine, but later she is complaining of severe femoral pain. Where is her pain?
A) Her knee B) Her foot C) Her thigh D) Her lower leg
Particulate matter is nonspecifically taken into cells by the process of ________.
exocytosis phagocytosis pinocytosis receptor-mediated endocytosis
When an unrestrained passenger's head strikes the windshield of a motor vehicle following rapid deceleration:
A) the anterior portion of the brain sustains stretching or tearing injuries, and the posterior portion of the brain sustains compression injuries. B) the head falls back against the headrest or seat and the brain collides with the rear of the skull, resulting in direct injury to the occipital lobe. C) the brain initially strikes the rear of the skull, resulting in direct bruising, and then rebounds and strikes the front part of the skull. D) compression injuries occur to the anterior portion of the brain, and stretching or tearing injuries occur to the posterior portion of the brain.
Lack of acetylcholinesterase in the synaptic cleft would result in
A. a decrease in acetylcholine production by the motor neuron. B. continuous stimulation of the postsynaptic membrane. C. rapid degradation of acetylcholine. D. relaxation of the muscle. E. continuous stimulation of the presynaptic membrane.