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Funct of Bones/Types
6.1, 6.2 -- Function of Bones and Types
| Term | Definition |
|---|---|
| FUNCTION -- SUPPORT | STRUCTURAL FRAMEWORK |
| FUNCTION--PROTECTION | PROTECTS INTERNAL ORGANS |
| FUNCTION--ASSISTANCE IN MOVEMENT | MUSCLES --> BONES VIA TENDONS; PULLING ON BONE PRODUCES MOTION |
| FUNCTION--MINERAL STORAGE AND RELEASE | MINERALS ADD STRENGTH TO BONE; RELEASE OF MINERALS IN BLOOD MAINTAINS BALANCES |
| FUNCTION--BLOOD CELL PRODUCTION | RED BONE MARROW PRODUCES ALL TYPES OF BLOOD CELLS; WITH AGE, RED-->YELLOW MARROW |
| HEMOPOIESIS | BLOOD PRODUCTION VIA RED BONE MARROW |
| FUNCTION--TRIGLYCERIDE STORAGE | YELLOW BONE MARROW = ADIPOSE CELLS WHICH STORE TRIGLYCERIDES |
| TYPE--LONG BONES | GREATER LENGTH THAN WIDTH. HAVE DIAPHYSIS (SHAFT) AND VARIABLE NUMBER OF EPIPHYSES (EXTREMES). SLIGHTLY CURVED TO ABSORB STRESS. |
| COMPACT BONE TISSUE AND SPONGY BONE TISSUE | DENSE AND SMALL SPACES; LARGE SPACES (RESPECTIVELY) |
| TYPE--SHORT BONES | CUBE SHAPED; EQUAL IN ALL DIMENSIONS. MOSTLY SPONGY BONE TISSUE, EXCEPT AT SURFACE (COMPACT). |
| TYPE--FLAT BONES | THIN, TWO NEARLY PARALLEL PLATES OF COMPACT BONE (TABLES) ENCLOSING SPONGY BONE (DIPLOE). HIGH PROTECTION AND MUSCLE ATTACHMENT |
| TYPE--IRREGULAR BONES | COMPLEX SHAPES; VARY IN COMPOSITION |
| TYPE--SESAMOID BONES | HIGH FRICTION, COMPRESSION AND STRESS AREAS. PROTECT TENDONS FROM WEAR AND TEAR. CHANGE DIRECTION OF PULL OF A TENDON. |
| TYPE--SUTURAL BONE | SMALL BONES IN SUTURES (JOINTS) OF CRANIAL BONES |
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