MadSci Network: Anatomy

Re: How many muscles are there in a cats ear?

Date: Sun Jun 18 20:30:53 2000
Posted By: Erin Cram, Grad student, Molecular and Cellular Biology, University of CA, Berkeley
Area of science: Anatomy
ID: 959103532.An

Well, cats are pretty similar in anatomy to humans, so I'll give you the answer 
for the human ear since I haven't been able to get my hands on a cat anatomy 
book.  The ear itself does not contain muscle.  It is mainly cartilage and skin.  
However, movement of the ear is controlled by the auricular muscles:
anterior auricular
superior auricular
posterior auricular
The general function of these muscles is to move the skin where they attach.

You may get some incedental movement of the ear during chewing because of 
contraction of the oral group of muscles, particularily zygomaticus major.

	Erin Cram, Admin MadSci Network

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