Skeletal System

Skeletal System 206 mug up up in the dead body 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 come along bone cell work up FORMATION conceptus skeletal starts as osteoblasts (primitive embryonic cells) then change to cartilage. At 8 weeks, OSSIFICATION begins. (Mineral matter begins to replace cartilage) Infant get up kooky because ossification not complete at birth. weak part - salving spot on babys enquiry STRUCTURE OF large BONE DIAPHYSIS shaft EPIPHYSES ends medullary CAVITY center of shaft, filled with icteric bone marrow squash, which is largely 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 tear cells are made. PERIOSTEUM tou gh, outside covering of bone contains blood vessels, lymph vessels and nerves. axile & appendicular SKELETON AXIAL skull, spinal column, ribs, breastbone, hyoid APPENDICULAR lift girdle, arms, pelvis, legs.

Spine Vertebral Column Encloses the spinal cord Vertebrae separated by pads of cartilage = intervertebral discs Cervical vertebrae (7) pectoral 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 faux ribs cartilage connects them to seventh rib (not sternum) - next 2 are floa! ting Appendicular Skeleton ? collarbone collar bone ? scapula shoulder blade ? humerus upper arm ? wheel spoke 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, ordination it on our website: OrderEssay.net

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