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Vagal

Vagal

(Science: anatomy) Pertaining to the vagus nerve.


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Re: The Heart

... explained something called vagus tone?) "activation of the vagus nerve innervating the SA node" and "There is both a withdrawal of vagal tone and an activation of sympathetic nerves innervating the SA node." 4) Thanks for the great explanation. Few questions xD - Does the SA ...

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by BioJunior
Sat Apr 23, 2011 7:26 pm
 
Forum: Human Biology
Topic: The Heart
Replies: 6
Views: 9759

Marey's Law

... carotid sinus) are sensetive to changes in Blood pressure when the blood pressure is elevated...baroreceptors are activated and sending afferent vagal impluses to the CAC (Cardio-acceleratory center) and CIC (cardio-inhibitory center) in the brain stem.....as a result CAC is inhibited and subsequently ...

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by mostafaseb
Tue Oct 12, 2010 9:00 pm
 
Forum: Physiology
Topic: Marey's Law
Replies: 9
Views: 21933

Antimuscarinic drugs

... was a joke, kind of.) "High therapeutic doses of atropine cause tachycardia in innervated and spontaneously beating hearts by blockade of vagal slowing" Q2. Does this mean it can increase the rate only, but not restart a stopped heart?

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by raneynickel
Thu Sep 24, 2009 6:50 am
 
Forum: Physiology
Topic: Antimuscarinic drugs
Replies: 3
Views: 5172

Re: Vagus Nerve

... a part of the ventral medulla called the nucleus ambiguus, while those that control functions of the gastrointestinal tract arise from the dorsal vagal nucleus. After exiting the medulla in the ... * sensory reception ( in human sensory reception: Nerve supply ) ...two-thirds of the tongue is ...

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by sanjidcapa
Tue May 05, 2009 9:15 am
 
Forum: Human Biology
Topic: Vagus Nerve
Replies: 19
Views: 166330

Vagus Nerve

An important point - Gastic acid is still produced without activation of the vagal nerve... For those who are interested... The hormone gastrin binds to (CCK-2) receptors on the stomach and activates a proton pump (via increases cAMP levels) to increase acid in ...

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by Revenged
Sat Sep 15, 2007 10:45 am
 
Forum: Human Biology
Topic: Vagus Nerve
Replies: 19
Views: 166330


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