Biology

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

-Long Bone (Femur):a)Epiphysis- finiss of the bone; b)Diaphysis-shaft of bone; c)Compact Bone-dense bone; d)Spongy Bone-cancellous bone; e)Periosteum-dense unlawful CT covering rotating shaft; f)Articular Cartilage-hyaline, at ends of bone, no periosteum; g)Medullary Cavity- colliery prmrly. in diaphysis; h)Endosteum-dense irregular CT lining medullary cavity; i)Marrow-hematopoietic weave, fill out cells. j)Epiphyseal Line-in adult, oddity 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.; haematopoietic cells; Yellow M-at diaphysis, adipose tissue imprnt. energy moderate; Intramembraneous-bone develops straightway from mesenchyme or fibrous...If you want to get a broad(a) essay, order it on our website: Orderessay

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