Biology

Fnct.-Skeletal Sys./Sign.:a)Support-mechncl., framewk.; b)Protection-CNS-Dorsal Cavity, heart, lungs in rib cage; c)Movement-passive role muscles attach to fancy up; d)Mineral Storage, Homeostasis-C Salts-if ↓ in blood-take from purport up: homeostasis, muscle contrcnts., neurotransmitter release; Phosphorous-if ↓ in blood-take from swot: nucleic acids, ATP; e)Hematopoiesis(hemopoiesis)-prod. of all RBC, platelets, WBC, ( blood-red M-major site of hematopoiesis; colour M-↑ risque cellular phones, minor role hematopoiesis). Locomotion-bones work tgthr. w/muscles to maint. ashes position, cause cntrld., précised mvmts. C (Ca++)-most abundant mineral in body; C-for good teeth, strong bones, fnctn. of nerves, muscles, kidneys, heart. ↓ C diet-1 of many factors assoc. w/an incrsd. jeopardy of osteoporosis: disease speeds ↑ process of natural loss of C in bones. Causes bones: weak, fragile, loss of height, curved spines, bone fractrs., in particul ar in women. Role-atomic number 76s Hematopoiesis-produce of blood cells; bone marrow(red,white). Compstn. Bone Tissue-dense arrangmt. of Collagen(protein fibers); fossilized by proof of salts=almost 70% of bones dry weight. major(ip) 2 C Salts/Compnts.: C Phosphate & C Carbonate. Antmy.

-Long Bone (Femur):a)Epiphysis- completions of the bone; b)Diaphysis-shaft of bone; c)Compact Bone-dense bone; d)Spongy Bone-cancellous bone; e)Periosteum-dense second base CT covering calamus; f)Articular Cartilage-hyaline, at ends of bone, no periosteum; g)Medullary Cavity- infernal region prmrly. in diaphysis; h)Endosteum-dense irregular CT lining medullary cavity; i)Marrow-hematopoietic meander, fill out cells. j)Epiphyseal Line-in adult, ! remnant of the epiphyseal plate. Articular Cartilage-hyaline: end of long bones in joint cavities: costal cartlgs. of ribs, trachea, larynx. Red M-at epiphyses, respns. for blood cell formtn.; hemopoietic cells; Yellow M-at diaphysis, adipose tissue imprnt. energy moderate; Intramembraneous-bone develops directly from mesenchyme or fibrous...If you want to get a broad(a) essay, order it on our website: OrderEssay.net

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