Definition Of Extension In Anatomy

The stretching of a fractured or dislocated limb so as to restore it to its natural position. Extension of the hip or shoulder moves the arm or leg backward.

Human Anatomy Fundamentals Flexibility And Joint Limitations

Extension an adult sex toy placed around an erect penis which extends its length.

Definition of 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. This is a limited range of motion usually performed between forty five and seventy degrees incorporating the antagonistic function of the neck flexors which comprises the deep musculature located in the anterior front part of the neck. A straightening of a flexed limb terminal care see extension of life.

Extension definition an act or instance of extending lengthening stretching out or enlarging the scope of something. Flexion and extension are movements that take place within the sagittal plane and involve anterior or posterior movements of the body or limbs. For example when standing up the knees are extended.

The process of straitening or the state of being strait. Extension of the hip and knee joints is necessary to stand up from the sitting position. Medical definition of extension.

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. When the chin is against the chest the head is flexed and the trunk is flexed when a person leans forward. An unbending movement around a joint in a limb as the knee or elbow that increases the angle between the bones of the limb at the joint compare flexion 1.

Extension of the neck relates to tilting the head backwards from a neutral position raising the chin until it is vertical or pointing upward at the ceiling. Extension of the hip and knee joints is necessary to stand up from the sitting position.

Axis And Planes Of Motion Flexion Extension