NO.
Other than size and orientation (horses walk horizonatally and humans are up right), the basic structure and function of nearly all mammals urinary system is the same. A lot of medications used in humans urinary problems are used in mamals and vice versa.
In humans, the ears and nose are body parts that are the same size on everyone.
Horses do not have floating ribs. Humans have floating ribs. Horses all have between 14 and 18 ribs, depending on the horse size.
it really depends on how big the horse is but most horses are the same size so a horses brain is about the size of a grape fruit.
about
In 10,000BC horses were about the size of modern medium sized dogs.
Horses do not have floating ribs. Humans have floating ribs. Horses all have between 14 and 18 ribs, depending on the horse size.
There is no real difference in a horses eye and that of a zebras. They both have the same type of vision and the eyes are roughly the same size.
Their brain size was the same as modern humans.
Horses are sometimes bigger then humans and they can be any colour really they could be 16 hand or 25 hand (at the most 25)
The horses' heart is 2-3 times larger then the humans heart. although They aren't that different besides size. They are both mammals and all mammals have a heart that works exactly the same (besides size).
It's the size of your fist maybe not even.