Question

The medulla is responsible for _____, whereas the reticular formation is involved in _____.

a. controlling essential body functions; modulating levels of arousal and consciousness
b. modulating levels of arousal and consciousness; coordinating movements and balance
c. coordinating movements and balance; controlling essential body functions
d. relaying sensory information; modulating levels of arousal and consciousness.

Answer 1

The medulla controls essential body functions like breathing and heart rate, while the reticular formation modulates arousal and consciousness. The correct option is a.

Step-by-step explanation:

The medulla is responsible for controlling essential body functions, such as breathing, blood pressure, and heart rate. In contrast, the reticular formation, a diffuse network of grey matter that extends throughout the brainstem, is involved in modulating levels of arousal and consciousness, including sleep and wakefulness, as well as general brain activity and attention.

The reticular formation plays a key role in maintaining alertness and is crucial for the ability to focus and remain awake.

Therefore, the correct option is a.