BSCI 202 Midterm: Exam 1 study guide part 1
3 Mar 2017
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Color varies with o2 content high o2 - scarlet; low o2 - dark red. The ph of blood in general is 7. 35 7. 45. Function: distributes carbon dioxide and oxygen- moves substances throughout the body, regulation- regulates temperature, protection- mechanisms to stop loss of blood after injury, like creating clots. Plasma non-living fluid matrix (55% of blood) >100 dissolved solutes: nutrients, gases, hormones, wastes, proteins, inorganic ions. Plasma proteins most abundant solutes (7-9%), albumin (60%) globulins (36%) fibrinogen (4% ) They make 1% of total blood volume: have 4,800- to 10,800 wbcs. Responsible for diapedesis>>function in defense against disease, wbc"s move out of the capillaries and move towards the chemical that is harming you (immune response) Two categories: granulocytes visible cytoplasmic granules: neutrophils, eosinophils, basophils. Neutrophils : aka polymorphonuclear leukocytes (pmns or polys) very phagocytic. Eosinophils: lysosome-like granules allergies, asthma, and general immune response- Histamine = inflammatory chemical vasodilator increases the wbcs to inflamed site.
