Question

The respiratory centres, which control inspiration and expiration, are located in

• A. medulla oblongata
• B. diencephalon
• C. spinal cord
• D. cerebellum

Answer 1

The correct option is A

medulla oblongata

The correct option is A:

The explanation for the correct option:

1. The respiratory center is located in the medulla oblongata which is a part of the metencephalon.
2. This center regulates both the depth and the rate of breathing which includes both inspiration and expiration.
3. The foramen magnum, an aperture at the base of our skull, allows the medulla, the portion of our brain that is closest to the ground, to communicate with our spinal cord.

The explanation for the incorrect options:

Option B:

1. Diencephalon has a vital role to play in our body, it basically controls the endocrine system of our body as well as relays motor signals to the cerebral cortex. It also controls the circadian rhythms of the body.

Option C:

1. It is the most important part of our body. It carries signals from the body to the brain and vice versa.

Option D:

1. Cerebellum has some of the most important functions in our body. It maintains the body balance and equilibrium, helps in motor learning, and also helps in fine movement coordination.

Final answer: The respiratory centers, which control inspiration and expiration, are located in the medulla oblongata.