BIOL 119 Lecture Notes - Lecture 1: Cascade Reaction, Blood Proteins, Blood Vessel
Document Summary
Sodium ions (na+: oxygen (o2, carbon dioxide (co2, bicarbonate ions (hco3-, vitamins, hormones, glucose, wastes, 45, platelets (thrombocytes, really small cell fragments, activated by blood vessel injury. Wbcs to an infection: eosinophils: weak phagocytes, also have anti-inflammatory effects, b- and t- lymphocytes, t-lymphocytes, differentiate into a variety of cell types that perform different functions, b-lymphocytes, produce antibodies. Specific immunity: recognition of specific antigens: antigens: foreign substances that trigger specific immune responses, usually large molecules (often proteins, may be chemicals produced by bacteria, body identifies them as foreign materials. Substances on the surfaces of bacteria, viruses, or other parasites. Stimulates specific types of lymphocytes to attack only that antigen: antibodies: bind to antigen surfaces, aid other wbcs to attack and destroy antigens or antigenic cells. Insoluble in plasma: transported in the blood by binding them to proteins (lipoproteins, low density lipoproteins (ldls), transport cholesterol to peripheral tissues, promote atherosclerosis and arteriosclerosis.
