The Skeletal Syste1

The Skeletal Syste1 - The sternum consists of the...

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The Skeletal System: Bones and Joints Vertebral Column The vertebral column contains 7 cervical, 12 thoracic, and 5 lumbar vertebrae, plus 1 sacral and 1 coccygeal bone. Each vertebra consists of a body, an arch, and processes. Regional differences in vertebrae are as follows: cervical vertebrae have transverse foramina; thoracic vertebrae have long spinous processes and attachment sites for the ribs; lumbar vertebrae have rectangular transverse and spinous processes, and the position of their facets limit rotation; the sacrum is a single, fused bone; the coccyx is four or fewer fused vertebrae. Thoracic Cage The thoracic cage consists of thoracic vertebrae, ribs, and sternum. There are 12 pairs of ribs: 7 true and 5 false (two of the false ribs are also called floating ribs).
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Unformatted text preview: The sternum consists of the manubrium, body, and xiphoid process. Appendicular Skeleton The appendicular skeleton consists of the bones of the upper and lower limbs and their girdles. Pectoral Girdle The pectoral girdle includes the scapula and clavicle. Upper Limb The upper limb consists of the arm (humerus), forearm (ulna and radius), wrist (eight carpal bones), and hand (five metacarpals, three phalanges in each finger, and two phalanges in the thumb). Pelvic Girdle The pelvic girdle is made up of the sacrum and two coxae. Each coxa consists of an ilium, ischium, and pubis. Lower Limb The lower limb includes the thigh (femur), leg (tibia and fibula), ankle (seven tarsals), and foot (metatarsals and phalanges, similar to the bones in the hand)....
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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