Anatomy & Physiology I and II

Anatomy & Physiology Study Guide

21.13 Chapter Twenty-One Practice Exam 1. Lymph located in the right chest, right arm, or right hald of the head is received by the ___________________. a. Cisterna chyli b. Right lymphatic duct c. Right thoracic duct d. Aorta 2. Anatomically, lymph vessels resemble ___________________. a. Muscular arteries b. Arterioles c. Medium veins d. The venae cavae 3. The specificity of an antibody is determined by the ___________________. a. Fixed segment b. Antigenic determinants c. Variable region d. Antibody class 4. The major histocompatibility complex (MHC) ___________________. a. Is the antigen found on bacteria that stimulates an immune response b. Produces antibodies in lymph glands c. Is a group of genes that codes for human leukocyte antigens d. Is a membrane protein that can recognize foreign antigens 5. Red blood cells that are damaged or defective are removed from the bloodstream by the ___________________. a. Thymus b. Lymph nodes c. Spleen d. Tonsils

6. Phagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as ___________________. a. Diapedesis b. Chemotaxis c. Adhesion d. Interferons are proteins associated with the activity of ___________________. a. T cells b. B cells c. NK cells d. Complement activation ___________________. a. Stimulates inflammation b. Attracts phagocytes c. Enhances phagocytosis d. The most beneficial effect of fever is that it ___________________. a. Inhibits the spread of some bacteria and viruses b. Increases the metabolic rate by up to 10 percent c. Stimulates the release of pyrogens d. A and B 10. CD4 markers are associated with ___________________. a. Cytotoxic T cells b. Suppressor T cells c. Helper T cells d. All of the above Answer key found on page 365. Perforation 7. Plasma cells 8. All of the above 9.

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