Extremities
Extremities
Extremities (/ɪkˈstrɛmɪtiz/), in the context of human anatomy, refer to the outermost or farthest points or portions of the body, specifically the hands and feet. The term is derived from the Latin word extremitas, which means "the furthest point".
Upper Extremities
The Upper Extremities consist of the arms, forearms, wrists, and hands. Each upper extremity is connected to the axial skeleton via the shoulder joint.
Arms
The Arm (Brachium) is the region of the upper limb that extends from the shoulder to the elbow. It contains one long bone, the humerus.
Forearms
The Forearm (Antebrachium) is the region of the upper limb that extends from the elbow to the wrist. It contains two long bones, the radius and ulna.
Wrists and Hands
The Wrist (Carpus) is a complex joint that bridges the hand to the forearm. It is capable of some remarkably intricate movements. The Hand (Manus) is the terminal part of the upper limb, consisting of a broad palm, four fingers, and an opposable thumb.
Lower Extremities
The Lower Extremities consist of the thighs, legs, ankles, and feet. Each lower extremity is connected to the axial skeleton via the hip joint.
Thighs
The Thigh (Femur) is the region of the lower limb that extends from the hip to the knee. It contains the largest bone in the human body, the femur.
Legs
The Leg (Crus) is the region of the lower limb that extends from the knee to the ankle. It contains two long bones, the tibia and fibula.
Ankles and Feet
The Ankle (Talus) is a hinge joint that connects the foot to the leg. The Foot (Pes) is the terminal part of the lower limb, bearing the weight of the body and enabling locomotion.
See Also
External links
- Medical encyclopedia article on Extremities
- Wikipedia's article - Extremities
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