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

Anatomy & Physiology

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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).

Anatomy & Physiology

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.

Anatomy & Physiology

True or False? The process where the body is immune to itself is referred to as autoimmunity. Select one:

a. true b. false

Anatomy & Physiology

Which of the following is not a characteristic of a reflex?

A) quick response B) spontaneous occurrence C) involuntary D) stereotyped response

Anatomy & Physiology