Question

how many types of joints?​

Answer 1

Answer:

The adult human skeletal system has a complex architecture that includes 206 named bones connected by cartilage, tendons, ligaments, and three types of joints: synarthroses (immovable) amphiarthroses (slightly movable) diarthroses (freely movable)

Answer 2

Answer:

A joint, also known as an articulation or articular surface, is a connection that occurs between bones in the skeletal system.

The joints help us to rotate our shoulder, bend our knees and elbows, swivel our neck

Other examples include the upper jaw, rib cage, backbone, and pelvic bone, etc.

Ball and Socket Joints

Here, one bone is hooked into the hollow space of another bone. This type of joint helps in rotatory movement. An example ball and socket joint are the shoulders.

Pivotal Joints

In this type of joint, one bone has tapped into the other in such a way that full rotation is not possible. This joint aid in sideways and back-forth movement. An example of a pivotal joint in the neck.

Hinge Joints

• Hinge joints are like door hinges, where only back and forth movement is possible. Example of hinge joints is the ankle, elbows, and knee joints.

Saddle Joints

• Saddle joint is the biaxial joint that allows the movement on two planes–flexion/extension and abduction/adduction. For example, the thumb is the only bone in the human body having a saddle joint.

Condyloid Joints

• Condyloid joints are the joints with two axes which permit up-down and side-to-side motions. The condyloid joints can be found at the base of the index finger, carpals of the wrist, elbow and the wrist joints. This joint is also known as a condylar, or ellipsoid joint.

Joint can simply be defined as the point or the location within the body where two or more bones meet together.