Horse Anatomy in 3D: Skeleton, Organs and Hooves

Horses are built for speed and stamina, with long legs, a huge heart and a gut made for grass. In the 3D Animal Anatomy simulator you can turn a horse around, look inside at its organs and see the skeleton that carries it at a gallop.

Open the horse in 3D All 10 animals
Inside view of a horse in the VisionVix 3D Animal Anatomy simulatorExplore in 3D
The horse inside view, half skin and half organs. Click the picture to open it live.

Three ways to see the horse

Horse full body in 3DFull bodyHorse inside in 3DInsideHorse skeleton in 3DSkeleton

Horse quick facts

Animal groupMammal, horse family
BonesAbout 205
HeartAbout 4 to 5 kg
BreathingOnly through the nose
HoovesMade of keratin, like our fingernails

The horse skeleton

Each horse leg ends in a single toe, the hoof. What looks like a backwards knee on the back leg is actually its ankle, and a locking system in the legs lets a horse doze while standing up.

Inside the horse

In the Inside view you can tap these labels on the 3D model:

Brain
Controls every move, sense and thought.
Heart
Pumps blood around the whole body, all day and night.
Lungs
Horses breathe only through the nose, never the mouth.
Intestines
Very long guts that slowly break down grass and hay.

Interesting facts about horses

  • A horse's heart weighs about 4 to 5 kg, around ten times a human heart.
  • Horses can only breathe through their nose, never through their mouth.
  • Each leg ends in one toe, protected by a hoof made of keratin.
  • They can lock their legs and doze standing up.
  • Horses have very long intestines to slowly break down grass and hay.

More animals in 3D

DogCatCowLionElephantFrogEagleSharkOctopus
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Horse anatomy questions

How many bones does a horse have?

Most horses have about 205 bones.

Can horses breathe through their mouth?

No. Horses breathe only through their nose.

How big is a horse's heart?

About 4 to 5 kg in an average horse, roughly ten times the weight of a human heart.

Can horses sleep standing up?

Yes, they can doze standing up thanks to a locking system in their legs, but they lie down for deep sleep.

The 3D Animal Anatomy simulator is made by Julian Neagu, a solo founder in London, as part of VisionVix Simulators. It is free to use in the browser on desktop and phone, with no sign-up.