Question

Read the following and find the correct statements.

(A) Midbrain, pons varoli and medulla oblongata are together called the brain stem
(B) Paracoels are connected to the diacoel through the iter
(C)The regulation centres of heartbeat, respiration, swallowing, cough, etc. are located in the medulla oblongata
(D) Cerebellum is also called the gyroscope of the body

• A. A, B, C
• B. A, C, D
• C. B, C, D
• D. A, B, D

Answer 1

The correct option is B A, C, D

A) Midbrain, pons varoli, and medulla oblongata are the three parts of the human brain. These structures are together called the brain stem.

B) Paracoels and Diacoel are the ventricles present inside the brain. Paracoels are the first and second ventricles which are connected to the third ventricle (Diocoel) through the intraventricular foreman and not the iter (or Cerebral Aqueduct).

C) All the involuntary actions in the body are controlled by the Medulla oblongata.

D) Gyroscope is a device that helps in detecting the orientation and direction of any object in which it is present. Similarly, In the human body, the cerebellum gives information about the orientation and direction of the body.

Thus, the correct answer is option B. i.e., A,C,D are correct statements.