Comal
Coma Coma
Coma (/ˈkoʊmə/; from the Greek κῶμα koma, meaning "deep sleep") is a state of unconsciousness in which a person cannot be awakened; fails to respond normally to painful stimuli, light, or sound; lacks a normal wake-sleep cycle; and does not initiate voluntary actions.
Etymology
The term "coma" comes from the Greek word "koma," which means "deep sleep." It was first used in this context by the ancient Greek physician Hippocrates.
Related Terms
- Brain Death: A condition in which all functions of the brain, including those that control involuntary activity necessary to sustain life, have ceased.
- Persistent Vegetative State: A disorder of consciousness in which patients with severe brain damage are in a state of partial arousal rather than true awareness.
- Locked-In Syndrome: A condition in which a patient is aware but cannot move or communicate verbally due to complete paralysis of nearly all voluntary muscles in the body except for the eyes.
- Stupor: A state of near-unconsciousness or insensibility.
- Unconsciousness: The state of being unaware and unable to respond to any stimuli, including pain.
Pronunciation
Coma is pronounced as /ˈkoʊmə/.
See Also
External links
- Medical encyclopedia article on Comal
- Wikipedia's article - Comal
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