Horse’s Muscles

𝗠𝘂𝘀𝗰𝗹𝗲𝘀 control every aspect of movement – both internal and external. They form the largest tissue mass in the horse’s body.

There are various types of muscles performing a wide variety of tasks all working in a similar way. Electrical impulses instruct the fibres to contract and shorten, then relax and lengthen.

There are 3 types of muscle:

𝟭. 𝗦𝗺𝗼𝗼𝘁𝗵 𝗺𝘂𝘀𝗰𝗹𝗲 – This is an involuntary muscle which functions automatically. It surrounds and is found in all internal tissues and organs. Smooth muscle responds to stimuli from the autonomic nervous system. It is responsible for pushing food through the digestive system and for the physical control of the bladder and bowel. It is also found in the vascualr and reproductive systems.

𝟮. 𝗖𝗮𝗿𝗱𝗶𝗮𝗰 𝗺𝘂𝘀𝗰𝗹𝗲 – A highly specialised, strong, thick muscle that is fatigue resistant. Beating around 100,000 times a day throughout the horse’s lifetime. This muscle co-ordinates the propulsion of blood in and out of the heart.

𝟯. 𝗦𝗸𝗲𝗹𝗲𝘁𝗮𝗹 𝗺𝘂𝘀𝗰𝗹𝗲 – There are over 700 different skeletal muscles in the horse. The brain sends a signal to the muscles via nerves which then convert chemical energy into movement.

The function of skeletal muscle is to:

Support the skeleton and create movement

Maintain joint stability and posture

Control range of movement

Protect the skeleton and internal organs from trauma

Contribute to thermoregulation by shivering

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Horse’s Muscles

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