[Histonet] removing trigeminal nerve and ganglion

John Kiernan jkiernan <@t> uwo.ca
Tue Jan 26 23:56:28 CST 2010


Why don't you say who and where you are?  
 
Someone must have shown you how to take out a rat's brain. This involves cutting the roots of all the cranial nerves and the pituitary stalk. You are then looking at the base of the skull, with the overlying dura mater.  The pituitary gland is in the midline, with a white centre (posterior lobe) and dark pink parts laterally (anterior lobe).  There is a broad white band on each side, extending caudally from the pituitary. This comprises the trigeminal ganglion, the extradural parts of its roots and the the nerve about to branch into its three divisions. 
 
With an acutely pointed scalpel, cut down on either side and below this white object lateral and posterior to the pituitary gland. Remove and fix the excavated object. This is the biggest and easiest sensory ganglion to dissect out of a rat. 
 
John Kiernan
Anatomy, UWO
London, Canada
= = =
----- Original Message -----
From: Michele Wich <mwich <@t> 7thwavelabs.com>
Date: Tuesday, January 26, 2010 11:15
Subject: [Histonet] removing trigeminal nerve and ganglion
To: histonet <@t> lists.utsouthwestern.edu

> Does anyone have experience/a good method for removing 
> trigeminal nerve
> and ganglion from rat intact? Any advice would be helpful.
> 


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