what is a habenular comissure? Is it same as habenular nucleus? What is meant by Ascending Tract of RAS ? What happens to it when an individual is suffering from coma ?
How is it related to coma ?
Answers
Answer:
1.what is a habenular comissure
The habenular commissure, is a brain commissure (a band of nerve fibers) situated in front of the pineal gland that connects the habenular nuclei on both sides of the diencephalon
2.it same as habenular nucleus ?
No ,
it act as regulators of key central nervous system neurotransmitters, connecting the forebrain and midbrain within the epithalamus.
3.What is meant by Ascending Tract of RAS
The ascending reticular activating system (ARAS), also known as the extrathalamic control modulatory system or simply the reticular activating system (RAS), is a set of connected nuclei in the brains of vertebrates that is responsible for regulating wakefulness and sleep-wake transitions.
4. What happens to it when an individual is suffering from coma ?
A person who is experiencing a coma cannot be awakened, and they do not react to the surrounding environment. They do not respond to pain, light, or sound in the usual way, and they do not make voluntary actions. Although they do not wake up, their body follows normal sleep patterns.