HSC 4555 Lecture Notes - Lecture 2: Superior Vena Cava, Left Coronary Artery, Inferior Vena Cava
Document Summary
Erythrocytes (red blood cells: 120 days transport oxygen to tissues remove co2 from tissues, buffer blood ph. Leukocytes (white blood cells: granular (neutrophils, basophils, eusinophils, agranular (lymphocytes: t cells, b cells, nk cells and monocytes) Very early embryo is in the yolk sac. Newborn is in the liver and spleen. Childhood and adulthood is in the bone: child: axial and appendicular skeleton have red (active) marrow, adult: axial has re marrow, appendicular has yellow marrow. Polycythemia: an abnormally increased concentration of hemoglobin in the blood due to an increase in rbcs. Platelets: hypercoagulable state- condition in which there is an abnormally increased tendency toward blood clotting (coagulation) People with polycythemia have an increase in hematocrit, hemoglobin, or red blood cell count above the normal limits. Relative polycythemia: plasma volume loss from dehydration, severe vomiting or diarrhea, or excessive sweating. Polycythemia vera: neoplastic transformation of bone marrow stem cells. Myeloproliferative disease (diseases of bone marrow in which excess cells are produced)
