Composition Of Blood

What is the percentage of Red Blood Cells (RBC) in a human body?

• 40%

• 44%

• 41%

• none of the above

What is the shape of RBC ?

The matrix of the blood is known as:

• platelets

• plasma

• WBC

• RBC

Which of the following blood cells play an important role in blood clotting?

• (a)Thrombocytes

• (b) Neutrophils

• (c) Leucocytes

• (d) Erythrocytes

Which of the following is correct?

(a) Serum contains blood and fibrinogen

(b) Plasma is blood without lymphocytes

(c) Blood comprises plasma, RBC, WBC and platelets

(d) Lymph is plasma with RBC and WBC

• Option A

• Option B

• Option C

• Option D

What is the average life span of RBCs?

• 7 - 10 Days

• 6.5 Years

• 120 days (approx.)

• 12 Months

Platelets are also known as:

• Granulocytes

• Monocytes

• Thrombocytes

• Globulins

. What are the main functions of blood?

A. Transport

B. Protection

C. Regulation

D. All the above

• only A

• A and B

• B and C

• All of the above

White Blood Cells are divided into how many parts?

• 2

• 3

• 4

• 5

During blood coagulation, thromboplastin is released by :

• RBC

• WBC

• damaged blood vessels and surrounding tissues

• none of these