Bone Movement Types

Study Notes

Bone Movement

Bone movement refers to the various ways in which bones move in relation to each other. There are several types of bone movement, including:

Rotation

Rotational movement occurs when a bone rotates around a fixed axis, such as the rotation of the head on the atlas bone.
This type of movement is typically seen in ball-and-socket joints, such as the shoulder and hip joints.

Extension

Extension is a movement that increases the angle between two bones, such as straightening the elbow or knee.
It is the opposite of flexion, which decreases the angle between two bones.

Abduction

Abduction is a movement that takes a bone away from the midline of the body, such as raising the arm out to the side.
This type of movement is typically seen in joints that allow for lateral movement, such as the shoulder and hip joints.

Flexion

Flexion is a movement that decreases the angle between two bones, such as bending the elbow or knee.
It is the opposite of extension, which increases the angle between two bones.

Adduction

Adduction is a movement that brings a bone towards the midline of the body, such as bringing the arm back down to the side.
This type of movement is typically seen in joints that allow for lateral movement, such as the shoulder and hip joints.

Note: These movements can occur in different planes of motion, such as the sagittal, frontal, or transverse plane, depending on the joint and the direction of movement.

Bone Movement

Bone movement refers to the various ways in which bones move in relation to each other.

Types of Bone Movement

Rotational movement: occurs when a bone rotates around a fixed axis, typically seen in ball-and-socket joints, such as the shoulder and hip joints.
Extension: increases the angle between two bones, such as straightening the elbow or knee, opposite of flexion.
Abduction: takes a bone away from the midline of the body, typically seen in joints allowing lateral movement, such as the shoulder and hip joints.
Flexion: decreases the angle between two bones, such as bending the elbow or knee, opposite of extension.
Adduction: brings a bone towards the midline of the body, typically seen in joints allowing lateral movement, such as the shoulder and hip joints.

Movement Planes

Bone movements can occur in different planes of motion, including the sagittal, frontal, or transverse plane, depending on the joint and direction of movement.