PSL301H1 Lecture Notes - Pearson Education, Yolk Sac, Anaerobic Respiration

• School: UTSG
• Department: Physiology
• Course: PSL301H1
• Professor: Gordon Richardson

Document Summary

Lecture 1: intro and red blood cells. Jessica newborn baby has yellow skin and sclera. Transport gases, nutrients, hormones and metabolic wastes. Regulates composition of isf (ph, ions, water, etc. ) Restrict fluid loss at injury sites via blood clotting (prevent blood loss) Defends against toxins & pathogens. Regulates body temperature by absorbing & redistributing heat (vasoconstrict/dilate) Plasma ~46- 63% most plasma proteins are made by the liver: water ~92% Proteins: albumins 60, globulins 35% Nitrogenous waste: trace elements and vitamins, gases. Formed elements 37- 54: erythrocytes (rbc) 99. 9, leukocytes (wbc) 0. 1% Neutrophils 50- 70% (phagocyte & granulocyte) Basophils <1% (granulocyte: thrombocytes. General: generate colloid osmotic pressure, buffer ph. Colloid osmotic pressure; carriers: globulins. & - clotting factors, enzymes, carriers. Forms fibrin for blood clotting. In embryo: yolk sac, liver, spleen & bone marrow. After birth: bone marrow. Adults: pelvis, spine, ribs, cranium, proximal end long bones. Hematopoiesis (the formation & development of blood cells)