Which of the following statements regarding phagocytosis is TRUE?
A. Macrophages are the only phagocytes in the tissues.
B. The microbe engulfed by the phagocyte is killed by lysosomal enzymes and hydrogen peroxide.
C. Phagocytosis is controlled by a negative feedback mechanism whereby phagocytes release chemicals that inhibit further phagocytosis.
D. The microbe engulfed by the phagocyte is killed by the membrane attack complex (MAC).
E. Antibodies found inside lysosomes attack and kill microbes that are engulfed by phagocytosis.
B
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Which condition is stimulated by allergens and results in bronchoconstriction, airway inflammation, and difficulty in exhaling?
A. Emphysema B. Tuberculosis C. Pulmonary fibrosis D. Chronic bronchitis E. Asthma
All veins transport blood toward the heart.
Answer the following statement true (T) or false (F)
During an autopsy the brainstem was separated from the rest of the brain by a cut between the
A. medulla and pons. B. pons and midbrain. C. midbrain and diencephalon. D. thalamus and cerebrum. E. medulla and the spinal cord.
Which of the following is not a part of the pelvis?
A) sacrum B) coccyx C) coxal bone D) lumbar vertebrae E) pubic symphysis