Wednesday, August 2, 2017

Fact of the day : Neurovascular knockout

Hey Awesomites

Stimulation of trigeminal nerve in the face, vagus nerve, or carotid sinus in the neck may cause a reflex drop in heart rate, dilatation of peripheral blood vessels, and constriction of cerebral blood vessels, which leads to a sudden loss of brain perfusion and unconsciousness. This type of knockout is called "neurovascular knockout".

Blow to the eyesocket, as during boxing may cause a similar knockout, called the oculocardiac reflex due to stimulation of trigeminal nerve ( ophthalmic branch ) and vagus nerve.

- Jaskunwar Singh

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