Oops! This image does not follow our content guidelines. To continue publishing, please remove it or upload a different image.
Part 2 : The blood system
Function of blood
*Nutrition
Blood carries nutritive substances from the gut to the tissues
*Respiration
Pick up O2 from lung to tissues
Carries CO2 from tissues to lung
*Excretion
Transport metabolic waste products to kidney for disposal
*Transport
Carries various substance into the target tissues
*Protection
White blood cells serve as a defense mechanisms of the body
*Homeostasis
Regulate body temp and pH of body fluids
*Clotting mechanism
To stop loss of blood
Repair the damaged of blood vessel
Formation of blood cells
Process of the blood cells formation----Hae-mato-poiesis
[Occurs in red bone marrow]
Ery-thro-poiesis [Formation of red blood cells]
Leu-co-poiesis [Formation of white blood cells]
Throm-bo-poiesis [Formation of platelets]
Blood Cell Anatomy and Function
* Leu-ko-cytes [White blood cell]
1. Granulo-cytes [Contain granules in their cytoplasm]
a. Eosinophils [ Bi-lobed nucleus]
- Kill parasites
-Break down histamine in allergic reaction
b. Neutro-phil [ Multi-lobed nucleus]
-Consume foreign particles/ bacteria and digest them
c. Baso-phils [Irregular nucleus]
- Release anticoagulant and histamine
2. A-granulo-cytes [Not contain granules in cytoplasm]
a. Mono-cytes [ Large single nucleus]
- Largest leucocytes
-Important function in immunity
- Consume large particles
b. Lympho-cytes [Large round, single almost filled the cell nucleus]
-Play important role in immunity
Oops! This image does not follow our content guidelines. To continue publishing, please remove it or upload a different image.
Disorders of blood
1. Leukemia [Abnormal production of white blood cells]
-Excess production of WBCs interferes with normal RBCs and platelets formation----[anemia and excessive bleeding from minor injury]
Symptoms
-Easy bleeding / bruising
-Frequent infection
2. Anemia [decrease in the no. RBCs or hemoglobin]
-Lower ability for the blood to carry oxygen to body tissues
Symptoms
-Lack of energy
-Shortness of breath
-pale skin
-Fatigue
