CH 21-Blood Flashcards
Blood Function
-Transports: Gasses, nutrients, metabolic waste
- Regulates: pH, electrolyte composition for interstitial fluid, helps body temp
- Restrict: fluis lose (w/ clotting reaction)
- Defend: against toxins and pathogens
Blood Composition
Plasma = 55%
- Water
- Electrolytes
- Proteins
->Albumins - major contributor of osmolarity
-> Globulins - transport Ion, hormones, and Lipids
-> Fibrinogen - convert fibrin in clotting reaction
Blood Cells = 45%
- Red Blood Cells (Erythrocyte)
- Platelets (Thrombocyte)
- White blood cell (Leukocyte)
Hematocrit
percentage of whole that is composed of red blood cells
(Blood Cell) Erythrocyte
Red blood cell
- cytoplasm contains hemoglobin
- flatten
- no: nucleus, mitochondria, or ribosome
- Transport: oxygen and CO2
(Blood Cell) Leukocyte
White blood cell
Types
Neutrophils
Eosinophils
Basophils
Monocyte
Lymphocyte (x2)
Leukocyte Mnemonic (Most-Least)
Never
let
Monkeys
Eat
Bananas
(Leukocyte) Neutrophil
(Leukocyte)
Engulf pathogens and debris
Release cytotoxins
(Leukocyte) Eosinophil
(Leukocyte)
Engulf antibody bound pathogens
Attack parasite with cytotoxin
(Leukocyte)Basophil
(Leukocyte)
Release histamine - complement by Mast Cells
(Leukocyte) Monoctye
(Leukocyte)
Capture or engulf pathogens
enter tissues to become macrophages
(Leukocyte) Lymphocyte small
(Leukocyte)
B- Lymphocyte form antibodies
T- Lymphocyte attack viruses and invade cells
(Leukocyte) lymphocyte large
NK- lymphocyte attack damaged or foreign cells
Thrombocyte, platelets
Clump together, activate coagulation