hearts & blood cell
Post on 13-Jun-2015
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Heart Structure
Similarities & DifferencesCharacteristics Hearts
Fish Reptiles Amphibians
No. of atrium One Two Two
No. of ventricles One One Two
No. of chambers Two Three Four
Condition of oxygenated & deoxygenated blood
- Mixed in ventricle
Separated in different
chambers
Type of circulation Single Double Double
Blood cells ( Hematocytes )
OThere are three categories : Red blood cells
(Erythrocytes) White blood cells
(Leukocytes) Platelets (Thrombocytes)
Functions of Blood Cells
O Red blood cells (Erythrocytes)carry oxygen and collect carbon dioxide through the use of hemoglobin
O White blood cells (Leukocytes)defend the body against both infectious diseas and foreign materials.
O Platelets (Thrombocytes)Help in blood cotting- Form hemostatic plug- Activate coagulation mechanism
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