Multiple Choice. Answer the following questions. 1. Which of the following statement/s is/are true about arteries? A. Inner layer is composed of endothelium folded into valves to prevent the backflow of blood. B. Middle layer is composed of thin smooth muscle. C. Outer layer is thin fibrous connective tissue because it does not carry blood under high pressure. D. All statements are not true. E. All statements are true.
Multiple Choice. Answer the following questions.
1. Which of the following statement/s is/are true about arteries?
A. Inner layer is composed of endothelium folded into valves to prevent the backflow of blood.
B. Middle layer is composed of thin smooth muscle.
C. Outer layer is thin fibrous connective tissue because it does not carry blood under high pressure.
D. All statements are not true.
E. All statements are true.
2. In innate immunity:
A. the immunity to a substance is produced only after exposure to that substance and each time the body is exposed to a particular substance, the response is the same.
B. immunity to a substance is produced only after exposure to that substance.
C. each time the body is exposed to a particular substance, the response is the same.
D. the ability to recognize and remember a particular substance is important.
3. Which of the following types of immunoglobulins binds complement?
A. IgA
B. IgD
C. IgE
D. IgG
The T-lymphocytes and B-lymphocytes are the major cells of the
A) lymph nodes
B) lymphatic vessels
C) adrenal gland
D) thymus
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