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  1. Human skeleton | Parts, Functions, Diagram, & Facts | Britannica

    Oct 11, 2025 · The human skeleton is the internal framework for the human body. It consists of many individual bones and cartilages, as well as bands of fibrous connective tissue—the …

  2. Human muscle system | Functions, Diagram, & Facts | Britannica

    Nov 24, 2025 · The triceps, as the name suggests, consists of three heads that originate from different surfaces but share the same insertion at the olecranon process of the ulna (a bone in …

  3. Pelvis | Definition, Anatomy, Diagram, & Facts | Britannica

    Nov 24, 2025 · The pelvis, in human anatomy, is a basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the …

  4. Human body | Organs, Systems, Structure, Diagram, & Facts

    Nov 1, 2025 · The musculoskeletal system (also referred to separately as the muscle system and the skeletal system), composed of the skeletal muscles and bones (with about 206 of the latter …

  5. Jaw | Structure, Function, Muscles & Teeth | Britannica

    Jaw, either of a pair of bones that form the framework of the mouth of vertebrate animals, usually containing teeth and including a movable lower jaw (mandible) and fixed upper jaw (maxilla).

  6. Femur | Definition, Function, Diagram, & Facts | Britannica

    Femur, upper bone of the leg or hind leg. The head forms a ball-and-socket joint with the hip (at the acetabulum), being held in place by a ligament within the socket and by strong surrounding …

  7. Bone - Structure, Function, Types | Britannica

    Nov 18, 2025 · Long bones, distinctive of the body’s extremities, exhibit a number of common gross structural features. The central region of the bone (diaphysis) is the most clearly tubular. …

  8. Foot | Description, Drawings, Bones, & Facts | Britannica

    Nov 12, 2025 · Its phalanges and metatarsal bones are large and strong. Together, the tarsal and metatarsal bones of the foot form a longitudinal arch, which absorbs shock in walking; a …

  9. Hand | Definition, Anatomy, Bones, Diagram, & Facts | Britannica

    Nov 1, 2025 · It is made up of the wrist joint, the carpal bones, the metacarpal bones, and the phalanges. The digits include a medial thumb (when viewed with the palm down), containing …

  10. Axial skeleton | Description, Characteristics, Anatomy, & Function ...

    Nov 21, 2025 · Axial skeleton, the part of the bony structure of the body that consists of the bones of the skull, the vertebral column, and the rib cage. The axial skeleton serves primarily to …