Systemic (body-wide) acute allergic response caused by allergens that directly enter the blood, as with certain bee stings or spider bites, is called ________.
A) myasthenia gravis
B) rheumatic fever
C) anaphylactic shock
D) delayed hypersensitivity
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Question 2) The pupil is an opening within the ________.
A) retina
B) iris
C) choroid
D) lens
E) sclera
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Question 3) What are tissue grafts harvested from a different animal species called?
A) xenografts
B) autografts
C) allografts
D) isografts
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Question 4) The function of the choroid layer of the eye is to ________.
A) release tears onto the anterior surface of the eye
B) refract light and focus it on the retina
C) regulate the amount of light entering the eye
D) produce gross eye movements
E) prevent light from scattering inside the eye
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Question 5) What type of cell specializes in killing virus-infected, cancer, or foreign graft cells directly?
A) cytotoxic T cells
B) regulatory T cells
C) antigen-presenting cells
D) helper T cells
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Question 6) The transparent portion of the fibrous layer of the eye is the ________.
A) choroid
B) conjunctiva
C) cornea
D) retina
E) sclera
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Question 7) Large antigen-antibody complexes can become insoluble and settle out of solution, a reaction called ________.
A) neutralization
B) complement fixation
C) precipitation
D) agglutination
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Question 8) Which of the following correctly states the function of the tarsal glands?
A) Tarsal glands produce sweat.
B) Tarsal glands secrete mucus.
C) Tarsal glands produce an oily secretion that lubricates the eye.
D) Tarsal glands release tears.
E) Tarsal glands secrete lysozymes which are enzymes that destroy bacteria in the eye.
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Question 9) What is the region of the antibody that varies from antibody to antibody?
A) regional or R region
B) variable or V region
C) constant or C region
D) stable or S region
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Question 10) What gland releases tears onto the anterior surface of the eyeball?
A) ceruminous
B) sweat
C) mammary
D) lacrimal
E) tarsal
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