1.Components of the first line of defense include all the following
except
A. the tough cell sheet of the upper epidermis of the skin.
B. nasal
... [Show More] hairs.
C. flushing action of tears and blinking.
D. flushing action of urine.
E. phagocytic white blood cells.
3. The chemical found in tears and saliva that hydrolyzes the peptidoglycan in certain bacterial cell walls is
A. lactic acid.
B. hydrochloric acid.
C. lysozyme.
D. histamine.
E. bile.
4. The body region where a ciliary escalator helps to sweep microbes trapped in mucus away from that body site is the
A. skin.
B. respiratory tract.
C. digestive tract.
D. urinary tract.
E. eyes.
5. This body region is protected by fatty acids acidic pH, lactic acid, and a tough cell barrier with its own normal flora
A. skin.
B. respiratory tract.
C. digestive tract.
D. urinary tract.
E. eyes.
6. Plasma
A. is the liquid portion of blood in which blood cells are suspended.
B. is mostly water.
C. contains albumin and globulins.
D. contains fibrinogen.
E. All of the choices are correct.
12. Which cell type is phagocytic and can migrate out into body tissues to differentiate into macrophages?
A. Basophils
B. Eosinophils
C. Neutrophils
D. Monocytes
E. Lymphocytes
13. All of the following pertain to platelets except
A. they contain hemoglobin to transport oxygen and carbon dioxide.
B. they are also called thrombocytes. C. they originate from giant multinucleate cells called megakaryocytes.
D. they function in blood clotting and inflammation.
E. they are not whole cells but are pieces of cells.
15. Diapedesis is the
A. loss of blood due to hemorrhaging.
B. production of only red blood cells.
C. production of white blood cells red blood cells, and platelets.
D. plugging of broken vessels to stop bleeding.
E. migration of white blood cells from the blood out to the tissues.
16. Plasma cells
A. function in cell-mediated immunity. B. are derived from T-lymphocytes.
C. function in blood clotting.
D. produce and secrete antibodies.
E. All of the choices are correct.
18. Which of the following lymphoid organs has the immunological function of filtering pathogens from the blood?
A. Lymph nodes
B. Thymus
C. Spleen
D. GALT
E. Tonsils
19. Which structures are found along lymphatic vessels but are heavily clustered in the armpit groin, and neck?
A. Lymph nodes
B. Thymus
C. Spleen
D. GALT
E. Tonsils
20. Which gland shrinks in size during adulthood and has hormones that function in maturation of T-lymphocytes?
A. Lymph nodes
B. Thymus
C. Spleen
D. GALT
E. Tonsils
21. The lymphoid tissues of the intestinal tract are collectively referred to as
A. Lymph nodes.
B. Thymus.
C. Spleen.
D. GALT.
E. Tonsils
22. The four classic signs and symptoms of inflammation include all the following except
A. redness.
B. warmth.
C. swelling
D. pain.
E. chills
23. All the following are events of early inflammation except
A. macrophages appear first and begin phagocytosis.
B. chemical mediators and cytokines are released.
C. brief vasoconstriction is followed by vasodilation.
D. exudate and pus can accumulate. E. capillaries become more permeable resulting in edema. [Show Less]