The skin and mucous membranes can be considered as a ________, a part of innate immunity.

A. chemical mediator
B. cellular mechanism
C. mechanical barrier
D. None of these choices are correct.


Answer: C

Anatomy & Physiology

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Anatomy & Physiology

If a small blood clot passes through the heart and heart vessels, where is it most likely to cause damage if it becomes immobilized?

A) the aorta B) the left ventricle C) the right atrial chamber D) the left coronary artery E) Severe damage could occur if a small blood clot became immobilized at any of these positions.

Anatomy & Physiology

Which of the following are lymphoid tissues?

a. lymph nodes b. spleen c. bone marrow d. tonsils e. All of the above

Anatomy & Physiology

Trypsin can activate

A. chymotrypsinogen. B. angiotensinogen. C. lipase. D. endopeptidase. E. pepsinogen.

Anatomy & Physiology