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Skeleton of the dog
You can find more about dogs here

The canine skeletal system is a marvel of bones, cartilage, and ligaments that provide the body with a framework to erect on four strong legs, protect internal organs, and provide a full range of motion. The muscles furnish the power to propel the dog into action, but without healthy bones, joints, and connective tissue, the muscles cannot do their job.
The dog's body has several types of joints: ball and socket such as the hip and shoulder joints; hinged joints such as the knees and elbows; and gliding or plane joints such as the wrists and ankles. The joints are lubricated for smooth action by synovial fluid and are stabilized by tendons and ligaments.


Skeleton of the dog

1 = Upper jaw
2 = Lower jaw
3 = Orbit
4 = Cervical vertebrae (bones of the neck)
5 = Thoracic vertebrae (the bones that form the dorsal part of the thoracic cage)
6 = Lumbar vertebrae (the bones of the lumbar region of the back)
7 = Sacrum (the set of sacral vertebrae)
8 = Caudal vertebrae (the bones of the tail)
9 = Pelvis
10 = Femur
11 = Patella (bone that allows the flexion of the thigh on the gaskin), knee cap
12 = Tibia
13 = Fibula
14 = Metacarpus
15 = Phalanges
16 = Scapula (shoulder blade)
17 = Ribs
18 = Sternum (bone forming the underside of the thoracic cage)
19 = Humerus
20 = Ulna
21 = Radius (forearm bone)
22 = Metatarsus
23 = Pahalnges


Some joints:
a = Shoulder joint
b = Elbow
c = Carpus (wrist bone)
d = Hip
e = Knee
f = Tarsus (bone forming the joint between the tibia and the metatarsus), hock joint

A joint is the location at which two bones make contact (articulate). Joints are constructed to both allow movement and provide mechanical support. The alteration of dog joints can be caused by general infectious or degenerative diseases, traumas or localized infections in the joint itself. When a joint doesn't work adequately it's because something is wrong on the bones, muscles, ligaments, tendons or nerves that are around the joint. The symptoms are pain, rigidity, swelling up, reddening, the rising of the local temperature and a loss of control of body movements > Osteoarthritis.


Ball and socket joint (hip, shoulder)


Hinged joint (knee, elbow)


Gliding or plane joint (wrist, ankle)

Here you can see the digestive system of a horse
Here you can see the skeleton of a horse
Here you can see an X-ray of a cat