Proteins known as CD4 and CD8 are:
A. Found on bacterial membranes
B. Found on helper and cytotoxic killer T-cells
C. Antigen presenting proteins found on APCs
D. Part of the complement system involved in triggering inflammation
Ans: B. Found on helper and cytotoxic killer T-cells
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The action that the hamstring, gemellus, obturator, piriformis, and quadratus femoris perform on the femur is ____________________.
Fill in the blank(s) with the appropriate word(s).
Upon examination of a patient with a knife wound to the right side of her neck, you observe that the patient has weakness turning her head to the left against resistance and has a drooping right shoulder. Your diagnosis is injury to the:
A) right sternocleidomastoid muscle. B) left levator scapulae muscle. C) right spinal accessory nerve. D) left dorsal scapular nerve. E) right dorsal scapular nerve.
True or False? The process where the body is immune to itself is referred to as autoimmunity. Select one:
a. true b. false
Which of the following is not a characteristic of a reflex?
A) quick response B) spontaneous occurrence C) involuntary D) stereotyped response