Question

the different types of joints are​

Answer 1

Answer:

hinge joint

pivot joint

gliding joint

saddle joint etc

Answer 2

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The question of how many joints there are in the human body is a difficult one to answer because it depends on a number of variables. This includes:

• The definition of joints. Some define a joint as a point where 2 bones connect. Others suggest it is a point where bones connect for the purpose of moving body parts.

• The inclusion of sesamoids. Sesamoids are bones imbedded in tendons, but not connected to other bones. The patella (kneecap) is the largest sesamoid. These bones vary in number from person to person.

• The age of the human. Babies start out with about 270 bones. Some of these bones fuse together during growth. Adults have about 206 named bones, with 80 in the axial skeleton and 126 in the appendicular skeleton.

In short, there’s no definite answer to this question. The estimated number is between 250 and 350.

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The human body has three main types of joints. They’re categorized by the movement they allow:

• Synarthroses (immovable). These are fixed or fibrous joints. They’re defined as two or more bones in close contact that have no movement. The bones of the skull are an example. The immovable joints between the plates of the skull are known as sutures.

• Amphiarthroses (slightly movable). Also known as cartilaginous joints, these joints are defined as two or more bones held so tightly together that only limited movement can take place. The vertebrae of the spine are good examples.

• Diarthroses (freely movable). Also known as synovial joints, these joints have synovial fluid enabling all parts of the joint to smoothly move against each other. These are the most prevalent joints in your body. Examples include joints like the knee and shoulder.

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