BIO 3347 Lecture 1: Blood
Document Summary
Collect waste products from tissue cells and deliver to special organs (kidney, lung) for disposal. Special components of the blood patrol the whole body and ght against invaded microorganisms and cancerous cells. Volume: men - 5-6 l, women 4-5 l. Appearance - biconcave disc shape, which is suiting for gas exchange. Exible so that rbcs can pass through the smallest blood vessels like capillaries. Structure - primary cell content is hemoglobin, the protein that binds oxygen and carbon dioxide. Function - transport oxygen from the lung to tissue cells and carbon dioxide from tissue cells to the lung; buffer blood ph. Hematopoiesis - refers to whole blood cell production. The red bone marrow is a network of reticular connective tissue that borders on wide blood capillaries called blood sinusoids. As hemocytoblasts mature, they migrate through the thin walls of the sinusoids to enter the blood.
