
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

Important Questions on Transportation
Give appropriate biological or technical terms for the following:
The relaxation phase of the heart.


Choose the correct answer from the four options given below:
Agranulocytes are:


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.

(v) Pulmonary semilunar valve




Write any five differences between artery and vein.


Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong:


Choose the correct answer from each of the four options given below:
A muscular wall is absent in:

Name the following:
The smallest blood vessels with one cell thick walls.


What is blood pressure? What is the approximate value of normal systolic pressure and diastolic pressure?


Choose between the two options to answer the question specified in the brackets for the following.
An example is illustrated below.
Example: Corolla or Calyx (Which is the miter whorl?) Answer: Calyx
Blood in the pulmonary artery or pulmonary vein (Which one contains less oxyhaemoglobin?)


