BIOL 143 Study Guide - Midterm Guide: B-Cell Chronic Lymphocytic Leukemia, Tunica Intima, Tunica Externa
6 Feb 2017
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Change color when binding to different gases (red when oxygenated; blue when deoxygenated) Defense against parasites (high count = parasitic infection) Thin rim of cytoplasm around big round nucleus. Mononucleosis: results from epstein-barr virus; abnormal cells = lymphocytes, not monocytes. Sickle cell anemia: rbcs sickle shaped; hemoglobin amino acid sequence is off; genetic recessive autosomal gene; painful blood gets stuck in capillaries. Tunica intima: innermost layer; touches blood; simple squamous epithelium. Tunica media: middle layer; made of smooth muscle. Tunica externa: outermost layer; made of connective tissue. Carry red/oxygenated blood (except pulmonary artery, which carries deoxygenated blood to the lungs) Have valves (help blood move in one direction) Varicose veins: expanded veins that have trouble getting blood back to the heart; more common in women. Cholesterol: a fat found in the plasma membrane of cells. < 200 mg/dl = desirable; lower risk for coronary heart disease.
