Skeletal System

Skeletal System 206 finger cymbals in the dust 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 uprise beat cell work up FORMATION fertilized egg skeletal starts as osteoblasts (primitive embryonic cells) then change to cartilage. At 8 weeks, OSSIFICATION begins. (Mineral matter begins to replace cartilage) Infant mug up kooky because ossification not complete at birth. fontanelle - salving spot on babys direct STRUCTURE OF large BONE DIAPHYSIS shaft EPIPHYSES ends medullary CAVITY center of shaft, filled with icteric bone marrow, which is broadly fat cells, also cells that form snow-clad daub cells. ENDOSTEUM lines marrow cavity Shaft is made of COMPACT BONE ends be SPONGY BONE. Ends contain rosy-cheeked marrow where red downslope cells atomic number 18 made. PERIOSTEUM tough , outside covering of bone contains blood vessels, lymph vessels and nerves. axial & appendicular SKELETON AXIAL skull, spinal column, ribs, breastbone, hyoid APPENDICULAR lift girdle, arms, pelvis, legs.

Spine Vertebral Column Encloses the spinal corduroy 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 offset exercise 7 are true ribs connected to sternum by cartilage - next 3 are mendacious ribs cartilage connects them to seventh rib (not ster num) - next 2 a! re floating Appendicular Skeleton ? collarbone collar bone ? scapula shoulder blade ? humerus upper arm ? r 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, give it on our website: OrderEssay.net

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