BIOL 208 Lecture Notes - Lecture 1: Blood, Hemostasis, Red Blood Cell
30 Jan 2017
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Document Summary
Blood is a connective tissue, consists of cells. 3 categories: erythrocytes (rbcs), leukocytes (wbs), and thrombocytes. Erythrocytes: red blood cells involved in gas transport. Hemostasis- mechanism used to prevent blood loss. Hemotocrit: % of red blood cells in wb. Plasma- 55% of blood: 637, 17. 1. Mostly water has 10% of dissolved elements. Inorganic ions sodium chloride - . 9% of 10% Plasma proteins antibodies 7 to 9% of 10% Serum- plasma minus fibrinogen (inactive form of fibrin) Nutrients stored as glycogen /fat, - used in body. Excretory waste products ammonia, lactic acid, co2. Kidney: communication e(cid:374)docri(cid:374)e syste(cid:373) hor(cid:373)o(cid:374)es, thermo regulation controls body temperature. Materials from part of the body go to other parts of the body: poikilotherm- body temperature varies with environmental temperature. Fish, amphibians, insects, all plants: homeotherm same body temperature. Vascularization - amount of blood vessels in specific area. Vasodilation smooth muscles of blood vessels get larger.
