BLG 10A/B Lecture 17: Chapter 17 – Blood
21 Apr 2020
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Document Summary
Hemolytic decease of a new-born: mother has negative blood and the baby has positive blood, but if the baby has negative blood and the mother has positive blood it is totally normal. Functions include: transport, delivering o2 and nutrients to body cells. Transporting metabolic wastes to lungs and kidneys for elimination. Transporting hormones from endocrine organs to target organ: regulation, maintaining body temperature by absorbing and distributing heat, maintaining normal ph using buffers; alkaline reserve of bicarbonate ions, maintaining adequate fluid volume in circulatory system, protection. Plasma proteins and platelets in blood initiate clot formation. Plasma is over 90% water: water is highly moveable because of osmosis. Cytosol water leaving blood from the cell into the tissue area. Composition of blood: blood is a type of connective tissue, matrix is nonliving fluid called plasma. Cells are living blood cells called formed elements. Formed elements: erythrocytes (red blood cells, or rbcs) Leukocytes (white blood cells, or wbcs: platelets.
