Thrombocytes (Platelets) They’re five types of leukocytes in the blood Agranular: - Lymphocytes: part of the immune system, T cells and B cells are used to attack invading bacteria, viruses, and toxins - Monocytes: cells that fights off bacteria, viruses and fungi, differentiate into macrophages Granular: - Neutrophils: circulate around our body in the bloodstream, and when they sense signals that an infection is present, the are the first cells to migrate to the site of the infection to begin killing the invading microbes - Eosinophils: responsible for combating multicellular parasites and certain infections in vertebrates - Basophils: secretes histamines and heparin, which prevents blood from clotting too quickly
Blood Blood Types A, B, AB, and O. Antigen: Surface of RBC’s Antibodies: found in plasma Blood type O: Universal DONOR Blood type AB: Universal Recipient Hematocrit - Is the percentage % of whole blood made of RBC HCT in Females: 38-46% Males: 40-54% Abnormal HCT value – affects oxygen carting capacity and viscosity Low hematocrit: Anemia, severe bleeding, bone marrow problems, nutritional deficiency…. BELOW 38% High hematocrit: Dehydration, living at high altitudes, lung and bone marrow disease….. ABOVE 65% LAB EXERCISE 6 R. and L Atria: they receive blood – left atrium from the lungs and the right atrium from the venous circulation Coronary Sulcus: receives drainage from most epicardial ventricular veins
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