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Human skeleton, the internal skeleton that serves as a framework for the body. This framework consists of many individual bones and cartilages. There also are bands of fibrous connective tissue—the ligaments and the tendons—in intimate relationship with the parts of the skeleton.
Characteristic of the vertebrate form, the human body has an internal skeleton with a backbone, and, as with the mammalian form, it has hair and mammary glands. Learn more about the composition, form, and physical adaptations of the human body.
Bone, rigid body tissue consisting of cells embedded in an abundant hard intercellular material. Bone tissue makes up the individual bones of the skeletons of vertebrates. Its two principle components are collagen and calcium phosphate. Learn more about the composition and function of bone.
rib cage, in vertebrate anatomy, basketlike skeletal structure that forms the chest, or thorax, and is made up of the ribs and their corresponding attachments to the sternum (breastbone) and the vertebral column.
The human skeleton contains 206 bones of various shapes—long, short, cube-shaped, flat, and irregular. Many of the long bones have an interior space that is filled with bone marrow, a spongy substance involved in the production and destruction of blood cells.
As his sharp eye uncovered the structure of the human body, Leonardo became fascinated by the figura istrumentale dell’ omo (“man’s instrumental figure”), and he sought to comprehend its physical working as a creation of nature.
Pelvis, in human anatomy, basin-shaped complex of bones that connects the trunk and the legs, supports and balances the trunk, and contains and supports the intestines, the urinary bladder, and the internal sex organs.
Vertebral column, in vertebrate animals, the flexible column extending from neck to tail, made of bones called vertebrae. The major function of the vertebral column is to protect the spinal cord; it also is an attachment for many muscles.
Take this osteology quiz at encyclopedia britannica to test your knowledge of the bones in the human body.
Skull, skeletal framework of the head of vertebrates, composed of bones or cartilage, which form a unit that protects the brain and some sense organs. The skull includes the upper jaw and the cranium. Learn more about the anatomy and function of the skull in humans and other vertebrates.