A&P Skeleton Notes - EMBRYO AT THIS POINT IS CALL A...

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SKELETAL SYSTEM FUNCTIONS OF BONE 1. SUPPORT 2. PROTECTION A. DOUBLE ARCH OF CRANIUM B. SPINOUS PROCESS OF VERTEBRATE C. STERNUM D. RIBS 3. MOVEMENT (EFFECTOR ORGANS FOR MUSCLES) 4. HEMATOPOIESIS RED MARROW OF STERNUM AND HIP BONES 5. STORAGE RESERVOIR FOR CALCIUM CALCIUM HOMEOSTASIS LONG BONE STRUCTURE
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FORMATION OF BONE ALL HUMAN EMBRYONIC SKELETONS ARE 100% CARTILAGE OSSIFICATION (CONVERSION OF CARTILAGE TO BONE) BEGINS 8 WEEKS AFTER CONCEPTION.
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Unformatted text preview: EMBRYO AT THIS POINT IS CALL A FETUS (PAGE 168) OSSIFICATION BEGINS IN THE CENTER OF THE SHAFT (DIAPHYSIS) AND PROGRESSES TOWARD EACH END (EPIPHYSIS) AT BIRTH ¾ OF DIAPHYSIS IS BONE ENDS ARE STILL CARTILAGE Why important? AFTER BIRTH EPIPHYSIS OSSIFY FONTANEL- UNOSSIFIED AREAS OF SKULL BONES (145) 1. ALLOWS HEAD TO BE COMPRESSED DURING BIRTH 2. ALLOWS FOR GROWTH OF BRAIN IN INFANCY...
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