Dogs may be the most artificially bred breed in the world, and they are also the animals with the greatest physical differences. Their physical differences can reach more than 20 times. But despite such a huge difference in body size, it is surprising that dogs have basically the same skeletal structure. An adult has 206 bones. Dogs have more bones than humans, with a total of 225-230 bones, divided into skull, trunk bones and limb bones.

[The role of bones]: For vertebrates, bones are the hardest tissue in the body. A dog’s bones support its body, maintain its shape, protect its internal organs, and provide an environment for muscles to attach to. , these are all things we can think of through observation. But bones also have some functions. You may not have thought that they are also the blood-forming organs in the body.

【Hematopoietic function】: Not all bones have hematopoietic function. This is because not all bones contain bone marrow. Only hematopoietic stem cells in bone marrow can divide into red blood cells, white blood cells and platelets.

[Protect bone marrow]: The spinal cord is an important part of the nervous system. Like humans, many of the commands issued by the brain to the limbs are transmitted through the spinal cord, which is wrapped in the spine. If there is a problem with the spine (cervical, thoracic, lumbar), the dog's body will have major problems.

1. How the bones move

The skeleton is a bony lever system pulled by muscles attached to the bone nodes. Bones are connected at joints with a buffering effect. The complex structure of the bones allows dogs to have considerable stability and mobility. The bones are held together by ligaments, allowing the dog to move to a certain extent in a specific direction.

Oh! Every joint is surrounded by a joint capsule. There is lubricant in the capsule, called synovial fluid. The bone ends surrounding the joints are covered with cartilage, a smooth surface layer that helps the joints move easily and cushions the weight of the entire body.

Therefore, the growth and protection of joints should be highly valued. Joint health products should be supplemented appropriately during the puppy's childhood and when the amount of exercise increases.

2. Growth and development of bones

Infancy: Long bones appear in the form of cartilage during fetal life. Later in pregnancy, this cartilage gradually transforms into actual bone.

Adulthood: Once a dog stops growing, the periosteal layer becomes relatively inactive, but if a fracture occurs and requires regeneration, the periosteal layer in those areas becomes active again.

Nutritional maintenance: Bone growth requires nutrients, and each bone is supplied with nutrients by two large nutrient arteries.

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