2
Question Distinguish between the following pairs on the basis of words indicated in the brackets ( ):
(a) Erythrocytes and Leukocytes (Nucleus)
(b) Leukocytes and Thrombocytes (Life-span)
(c) Arteries and Veins (Wall and lumen)
(d) Pulmonary and Systemic circulation (Kind of blood)
(e) Mitral valve and Tricuspid valve (Location)
(a) Difference between Erythrocytes and Leukocytes (Nucleus):
| Character | Erythrocytes | Leukocytes |
|---|---|---|
| Nucleus | Absent | Present |
(b) Difference between Leukocytes and Thrombocytes (Life-span):
| Character | Leukocytes | Thrombocytes |
|---|---|---|
| Life span | Two weeks | 3-5 days |
(c) Difference between Arteries and Veins (Wall and lumen):
| Character | Arteries | Veins |
|---|---|---|
| Wall | Thick and muscular | Thin and less muscular |
| Lumen | Narrow | Wider |
(d) Difference between Pulmonary and Systemic circulation (Kind of blood):
| Character | Pulmonary circulation | Systemic circulation |
|---|---|---|
| Kind of blood | Pulmonary artery brings deoxygenated blood to lungs and pulmonary vein takes oxygenated blood from lungs to heart. | Oxygenated blood is transported to body parts from heart and deoxygenated blood is transported back to heart. |
(e) Difference between Mitral valve and Tricuspid valve (Location):
| Character | Mitral valve | Tricuspid valve |
|---|---|---|
| Location | Present between left atrium and left ventricle. | Present between right atrium and right ventricle. |