What Is Extension In Anatomy

Flexion and extension are movements that take place within the sagittal plane and involve anterior or posterior movements of the body or limbs. Extension of the hip and knee joints is necessary to stand up from the sitting position.

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When a joint can move forward and backward such as the neck and trunk extension is movement in the posterior direction.

What is extension in anatomy. For the vertebral column flexion anterior flexion is an anterior forward bending of the neck or body while extension involves a posterior directed motion such as straightening from a flexed position or bending backward. Extension definition an act or instance of extending lengthening stretching out or enlarging the scope of something. Extension refers to a movement that increases the angle between two body parts.

An exception is extension of the thumb which takes place in a frontal plane about a sagittal axis. Note that extension of the thigh beyond the anatomical standing position is greatly limited by the ligaments that support the hip joint. For example when standing up the knees are extended.

Extension occurs when the angle between two adjacent segments in the body increases as the ventral surfaces of the segments move away from each other and occurs in a sagittal plane about a frontal axis. An enlargement in scope or operation. State of being extended.

The process of straitening or the state of being strait. Extension an adult sex toy placed around an erect penis which extends its length. A straightening of a flexed limb terminal care see extension of life.

Extension is the opposite of flexion describing a straightening movement that increases the angle between body parts. Extension of the hip and knee joints is necessary to stand up from the sitting position. Knee flexion is the bending of the knee to bring the foot toward the posterior thigh and extension is the straightening of the knee.

Tools are extensions of human hands. Extension at the elbow is increasing the angle between the ulna and the humerus. Extension at the elbow is increasing the angle between the ulna and the humerus.

The action of extending. Extension the making larger of a thing imaging the broadening of a lesioneg a cancer or focus of infection as seen on an imaging technique orthopedics a in the angle between parts of a joint.

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