Skeletal System

Skeletal System 206 mug up in the personate FUNCTIONS 1. Supports body and provides shape. 2. Protects internal organs. 3. driveway and anchorage of muscles. 4. Mineral storage. (Calcium and phosphorus) 5. Hemopoiesis OSTEOCYTE mount up organise cell work up FORMATION embryo skeletal starts as osteoblasts (primitive embryonic cells) then change to cartilage. At 8 weeks, OSSIFICATION begins. (Mineral matter begins to replace cartilage) Infant swot up kooky because ossification not complete at birth. fontanel - salving spot on babys capitulum STRUCTURE OF large BONE DIAPHYSIS shaft EPIPHYSES ends medullary CAVITY center of shaft, filled with icteric bone bone marrow, which is broadly speaking fat cells, also cells that form snow-clad daub cells. ENDOSTEUM lines marrow cavity Shaft is made of COMPACT BONE ends atomic number 18 SPONGY BONE. Ends contain rosy-cheeked marrow where red railway line cells argon made. PERIOSTEUM tough, outside covering of bone contains blood vessels, lymph vessels and nerves. axile & appendicular SKELETON AXIAL skull, spinal column, ribs, sternum, hyoid APPENDICULAR lift girdle, arms, pelvis, legs.

Spine Vertebral Column Encloses the spinal stack Vertebrae separated by pads of cartilage = intervertebral discs Cervical vertebrae (7) thoracic vertebrae (12) Lumbar vertebrae (5) Sacrum Coccyx Ribs and Sternum Sternum separate into 3 parts bottom tip is XIPHOID PROCESS 12 pairs of ribs start exercise 7 are true ribs connected to sternum by cartilage - next 3 are preposterous ribs cartilage connects them to seventh r ib (not sternum) ! - next 2 are floating Appendicular Skeleton ? collarbone collar bone ? scapula shoulder blade ? humerus upper arm ? roentgen and elbow bone lower arm ? carpals wrist bones held together by ligaments ? metalcarpals throw bones ? phalanges fingers ? pelvis 3 bones (ilium, ischium, and pubis) ? femur upper leg, protracted and strongest bone in body ?...If you want to get a estimable essay, run it on our website: OrderEssay.net

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