Question

Read the following and find the correct statement:
A) Midbrains, pons varoli, medulla oblongata are together called brain system.
B) Paracoel are connected to diacoel through the iter
C) The regulation centres of the heartbeat, respiration, cough, swallowing are located in the medulla oblongata
D)The cerebellum is called as gyroscope of the body.

Answer 1

The medulla oblongata, also known as the medulla, is the lowest section of the brain and the brainstem. The medulla oblongata is bound to the midbrain by the pons and is continuous with the spinal cord posteriorly, merging at the foramen magnum at the base of the skull.

Complete answer:
The correct statements are –
A) Midbrains, pons varoli, medulla oblongata are together called brain system.
C) The regulation centres of the heartbeat, respiration, cough, swallowing are located in the medulla oblongata
D) The cerebellum is called as gyroscope of the body.

Explanation: The three regions of the human brain are the midbrain, pons varoli, and medulla oblongata. The brain stem is the collective name for these structures. Many of the control centres for essential body functions, such as swallowing, breathing, and vasomotor control, are located in the brainstem.

Except for those involved with olfaction and vision, all of the cranial nerve nuclei are found in the brainstem, providing motor and sensory function to cranial structures such as the facial muscles, tongue, pharynx, and larynx, as well as supplying the senses of taste, balance, and hearing. The Medulla oblongata is in control of all involuntary acts in the body.

A gyroscope is a system that detects the orientation and direction of any point in its vicinity. Similarly, the cerebellum in the human body provides details about the body's orientation and direction.

Note: The ventricles of the brain are known as paracoels and diacoels. The intraventricular foreman, rather than the iter, connects the first and second ventricles to the third ventricle (Diocoel).