Why would a body cell that is not a phagocyte need to present antigens?
Non-phagocytic body cells can become infected with a virus.
Antigens are required for cell-to-cell attachment.
Antigens are infectious and can spread to normal cells.
All cells of the body can engulf invading cells.
Non-phagocytic body cells can become infected with a virus.
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What is the principle that underlies the bioelectrical impedance technique for assessing body composition?
A. Fat tissue absorbs electrical current before the current encounters lean tissue. B. Fat tissue is a less efficient conductor of electrical current than is lean tissue. C. Fat tissue blocks electrical current. D. Lean tissue blocks electrical current. E. Fat tissue is a more efficient conductor of electrical current than is lean tissue.
A 37-year-old Hispanic man who works in a chemical factory was seen because he was
coughing up blood and experiencing chest pain. Laboratory results were as follows What is the most likely diagnosis? Complete blood count (CBC)—slight normocytic anemia; platelets and white blood cells within normal limits Urinalysis—3+ protein, 1+ blood Renal function tests (BUN and creatinine)—elevated Liver function tests—within normal limits Electrolytes and glucose—within normal limits Antinuclear antibody (ANA)—negative Antimitochondrial antibody—negative Antismooth muscle antibody—negative Antiglomerular basement membrane antibody—positive A) Systemic lupus erythematosus (SLE) B) Primary biliary cirrhosis C) Goodpasture's syndrome D) Idiopathic thromobocytopenia purpura (ITP) E) Chronic active hepatitis
A training concept that says the demands placed on a system must be increased systematically and progressively over time to cause physiological adaptation is known as ___________.
A. classical periodization B. overtraining C. specificity of training D. the overload principle E. undulating periodization
This system transports lymph from the tissues throughout the body and returns fluids to circulation.
A. Lymphatic B. Cardiovascular C. Endocrine D. Immune