Question

How many types of joints are there in the human body?

Answer 1

Hint: The human body has mainly three types of joints. That is categorized by the movement they allow as due to the presence of joints one can move their body and make any kind of motion these joints have their particular motion and movement criteria.

Complete answer:
Synarthroses (immovable) are known as fixed or fibrous joints. That is defined as two or more bones in close contact that have zero movements. Skull bones are an example. The immovable joints present between the plates of the skull are known as sutures.
Amphiarthrosis (slightly movable) is mainly known as cartilaginous joints, these joints are defined as two or more bones held so compactly together that only very limited movement can occur. The vertebra of the spine is an actual example.
Diarthroses (freely movable) are mainly known as synovial joints, joints having synovial fluid enabling all parts of the joint so can move smoothly against each other and are the most prevalent joints in your body. Examples include joints like the knee and shoulder joint.

There are mainly six types of freely movable diarthrosis (synovial) joints:
-Ball and socket joint:- allowing movement in all directions, the ball and socket joint features the rounded head of one bone sitting like in the cup of another bone. Examples include the shoulder joint and hip joint.
-Hinge joint. The hinge joint is just like a door, allowing motion in one direction only. Examples include the elbow joint and knee joint.
-Condyloid joint:- The condyloid joint allows movement, but zero rotation. Examples include finger joints and jaw.
-Pivot joint. The pivot joint, also known as the rotary joint or trochoid joint, is characterized by one bone that can swivel in a ring formed from a second bone. Examples are the joints between ulna and radius bones that rotate the forearm, and the joint between the first and second vertebrae in the neck.
-Gliding joint. The gliding joint is also called the plane joint. Although it only permits minimum movement, it’s characterized by smooth surfaces that can slide over one another. An example is a joint presentation in the wrist.
-Saddle joint. Although the saddle joint does not allow any rotation, it does enable movement back and forth and side towards the side. An example is a joint presentation at the base of the thumb.

Note: All Fibrous joints contain fibrous connective tissue and allow no movement; fibrous joints include sutures, syndesmosis, and gomphosis as well. Cartilaginous joints contain cartilage and allow very little movement; there are mainly two types of cartilaginous joints: synchondroses and symphyses present in the body.