How many platelets are present in the human body?
Important Questions on Tissues
Draw the diagram showing the sectional view of the human heart. Label the following parts.
(i) Aorta
(ii) Chamber of the heart that receives deoxygenated blood.
Give appropriate biological or technical terms for the following:
The relaxation phase of the heart.
Name the following:
The smallest blood vessels with one cell thick walls.
Choose the correct answer from each of the four options given below:
A muscular wall is absent in:
Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:
What is blood pressure? What is the approximate value of normal systolic pressure and diastolic pressure?
The following statements about blood vessels is/are correct.
(A) Arteries have thin and less muscular walls
(B) Walls of veins are non-elastic
(C) Arteries have no valves in their inner lining
(D) Veins do not collapse when empty
(v) Pulmonary semilunar valve
Choose the correct answer from the four options given below:
Agranulocytes are:
