The circulatory system consists of the Cardiovascular system, as well as the lymphatic system.
- Cardiovascular: heart, blood vessels, and blood.
- Blood: Maintains osmotic pressure, aids in transportations, buffering, immunity, and blood clotting.
*Blood is made up of cells (45%) and plasma (55%).
- Cells: Red (erythrocyte), white (leukocytes), platelets (thrombocytes)
-Plasma: Albumins (osmotic pressure), globulins (alpha- hormones, beta- proteins, gamma- antibodies), fibrinogen (clotting).
- Red blood cells: Bioconcave (allows oxygen and carbon dioxide exchange), haemoglobin is the main component (transports gases), produces in red bone marrow.
- White blood cells: 5 types:
- Neutrophils (60%): Eat bacteria (clean up!)
- Eosinophils (1-3%): Increase during allergic reaction/parasite infestation
- Basophilis (1%): releases histamines and contain heparin (help prevent blood for clotting inappropriately)
- Lymphocype (25-30%): Produces antibodies, or attacks bacteria/viruses
- Monocyte (6%): develops into macrophage (large scavenger cells of the body)
- Lymphatic: Has 3 functions:
1- Collects and returns interstitial fluid to blood (helps maintain fluid balance)
2- Defends body against disease by filtering lymph
3- Absorbs lipids from intestine and transports them to the blood
*Drains on the left side of the body, 2 lower limbs, pelvis and abs.
- Lymphnodes filter lymph and are located on the cheek, in front of and behind ear, back of head, and under chin.
- Cardiovascular: heart, blood vessels, and blood.
- Blood: Maintains osmotic pressure, aids in transportations, buffering, immunity, and blood clotting.
*Blood is made up of cells (45%) and plasma (55%).
- Cells: Red (erythrocyte), white (leukocytes), platelets (thrombocytes)
-Plasma: Albumins (osmotic pressure), globulins (alpha- hormones, beta- proteins, gamma- antibodies), fibrinogen (clotting).
- Red blood cells: Bioconcave (allows oxygen and carbon dioxide exchange), haemoglobin is the main component (transports gases), produces in red bone marrow.
- White blood cells: 5 types:
- Neutrophils (60%): Eat bacteria (clean up!)
- Eosinophils (1-3%): Increase during allergic reaction/parasite infestation
- Basophilis (1%): releases histamines and contain heparin (help prevent blood for clotting inappropriately)
- Lymphocype (25-30%): Produces antibodies, or attacks bacteria/viruses
- Monocyte (6%): develops into macrophage (large scavenger cells of the body)
- Lymphatic: Has 3 functions:
1- Collects and returns interstitial fluid to blood (helps maintain fluid balance)
2- Defends body against disease by filtering lymph
3- Absorbs lipids from intestine and transports them to the blood
*Drains on the left side of the body, 2 lower limbs, pelvis and abs.
- Lymphnodes filter lymph and are located on the cheek, in front of and behind ear, back of head, and under chin.
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