www.theequinesportstherapist.co.uk

www.theequinesportstherapist.co.ukwww.theequinesportstherapist.co.ukwww.theequinesportstherapist.co.uk

www.theequinesportstherapist.co.uk

www.theequinesportstherapist.co.ukwww.theequinesportstherapist.co.ukwww.theequinesportstherapist.co.uk
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๐Ÿชฐ๐Ÿชฐ๐Ÿชฐ๐Ÿชฐ๐Ÿชฐ๐Ÿชฐ & Panniculus Carnosus Muscle

 Buzz Off!!! 

So, itโ€™s that time of year again when the pesky horse flies are upon us!, but did you know just how the horse manages to twitch parts of his skin to rid himself of these annoying parasites? ๐Ÿชฐ๐Ÿชฐ

 

He is able to do this through a clever muscle called the Panniculus Carnosus, itโ€™s the most superficial muscle in the horseโ€™s body.  It is part of the subcutaneous tissues and does not have a fixed shape or profile, just a thin muscular sheet like layer lying under the skin. Although this muscle does attach to some of the locomotor muscles, itโ€™s action is completely independent of the locomotor system! Clever eh?! 


So, when the horseโ€™s sensory nerves are stimulated by a foreign object or a fly, this muscle receives the message and allows for independent movement of the skin and enable it to contract or twitch the skin, hopefully ridding itself of the pesky irritant! 


Itโ€™s interesting to note that when riderโ€™s legs are applied to the horse, one of their first effects are to stimulate the Panniculus Carnosus! The horse eventually learns through his education to support unmoved the riderโ€™s legs. 


The Panniculus Carnosus does not cover the entire horse, so as you can see from my interesting hand drawn diagram๐Ÿซฃ , it does not cover the horseโ€™s neck or lower legs and this is why you will see the horse shaking itโ€™s head and neck or stamping bits feet to try and rid itself of any irritants in these areas! 


Credit sources - Henry L. de Bussigny-Equitation, Gillian Higgins- Horse Anatomy for performance, W.Frank Calderon-Animal Painting & Anatomy

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