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The pectoral girdle, or shoulder girdle, is the set of bones of the appendicular skeleton that connects to the forelimbs. In the strict sense, the pectoral girdle includes the scapula, coracoid, and clavicle, while the sternum is variously referred to either the pectoral girdle or, together with the ribs, the axial skeleton. Unlike the pelvic ...
The appendicular skeleton, comprising the arms and legs, including the shoulder and pelvic girdles, contains 126 bones, bringing the total for the entire skeleton to 206 bones. Infants are born with about 270 bones [ 4 ] with most of it being cartilage, but will later fuse together and decrease over time to 206 bones.
A set of skeletal remains including a skull. The Old Man [31] La Chapelle-aux-Saints 1 Homo neanderthalensis: 60 ka La Chapelle-aux-Saints: A skeleton. Egbert [32] Ksar Akil 1 National Museum of Beirut: Homo sapiens: 40-38 ka [33] Ksar Akil: A juvenile skeleton. Ethelruda [33] Ksar Akil 2 National Museum of Beirut: Homo sapiens: 42-41 ka Ksar ...
The axial skeleton (80 bones) is formed by the vertebral column (32–34 bones; the number of the vertebrae differs from human to human as the lower 2 parts, sacral and coccygeal bone may vary in length), a part of the rib cage (12 pairs of ribs and the sternum), and the skull (22 bones and 7 associated bones).
The following other wikis use this file: Usage on ar.wikipedia.org بوابة:تشريح/صورة مختارة; بوابة:تشريح/صورة مختارة/5
Skeletal muscle is arranged in discrete muscles, an example of which is the biceps brachii. The tough, fibrous epimysium of skeletal muscle is both connected to and continuous with the tendons . In turn, the tendons connect to the periosteum layer surrounding the bones, permitting the transfer of force from the muscles to the skeleton.
The fossils of Montana's T. rex are exhibited at Museum of the Rockies as part of a full skeletal mount completed with cast elements replacing the missing bones. [57] This mount was installed after the Wankel Rex (now nicknamed The Nation's T. rex ) was loaned to the Smithsonian to occupy a central part in the museum's dinosaur hall, featuring ...