BIOL 271 Lecture Notes - Bone Marrow, Hemopoietic Growth Factor, Urobilinogen
Document Summary
Why do we need a cardiovascular (circulatory) system? transportation multicellular organisms: need diffusion. Transportation: nutrients gases (o2, co2) metabolic wastes heat biochemicals (hormones) Subdivisions: cardiovascular system a series of tubes (blood vessels) lled with uid (blood) connected to a pump (heart) lymphatic system. Blood functions: transportation regulation of: ph (buffers) body temp (constriction/dilation of surface vessels) Icf (intracellular uid) volume (dissolved ions and proteins) blood affects interstitial uid, which affects intracellular uid (starling"s law) components protection (wbc"s, antibodies) physical characteristics. 5-6 l in adult male, 4-5 l in adult female. 8% of total body weight more viscous than water temp~ 38 c ph: 7. 35-7. 45. ___% plasma proteins synthesized in liver don"t leave bloodstream. ___% other substances electrolytes, nutrients, hormones, gases, waste products globulins (immunoglobulins, antibodies) bind to foreign antigens, form antigen-antibody complexes. Plasma proteins albumin maintains blood prothrombin and brinogen clotting factors.
