Equine Anatomy and Physiology

The video tutorial, presented by Roberto DWI, an extension veterinarian at the University of Kentucky, focuses on the bony anatomy of the horse's front limb. It compares the anatomy of a horse's front limb to a human arm, highlighting similarities and differences, such as the absence of a collar bone in horses. The tutorial provides a detailed explanation of the bones in the horse's front limb, including the scapula, humerus, ulna, radius, carpal bones, and metacarpal bones. It also discusses the navicular bone and common lameness issues in horses, offering insights into potential health problems. The video concludes with resources for further learning.

What is a major difference between the horse's front limb and the human arm?

• Horses lack a collar bone.

• Horses have more bones in the front limb than humans.

• Horses have a bony attachment of the front limb to the body.

• Horses have a collar bone.

Why can't horses rotate their front legs like humans?

• Their muscles are too weak.

• They have more bones in the front limb.

• Their bones are too fragile.

• Their joints are designed for forward motion.

What is unique about the horse's ulna and radius?

• They are fused together.

• They are separate bones.

• They are longer than in humans.

• They are missing in horses.

What are the carpal bones in horses equivalent to in humans?

• Ankle

• Wrist

• Knee

• Elbow

Which metacarpal bone is known as the cannon bone in horses?

• First metacarpal

• Fourth metacarpal

• Second metacarpal

• Third metacarpal

What happened to the first and fifth metacarpal bones in horses?

• They remained unchanged.

• They fused with other bones.

• They became larger.

• They evolved into splint bones.

What is the function of the sesamoid bones in horses?

• Connect muscles to bones

• Support the hoof

• Aid in joint movement

• Protect the knee

What is navicular disease associated with?

• The cannon bone

• The sesamoid bones

• The navicular bone

• The carpal bones

What is a common cause of lameness in young horses?

• Inflammation of the splint bone ligament

• Fracture of the cannon bone

• Dislocation of the elbow

• Injury to the shoulder blade

What should you do if you notice swelling in a horse's lower leg?

• Bandage the leg

• Apply ice

• Call a veterinarian

• Ignore it