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Styles Editing .ossification of the zone of proliferation 39. what hormone promo

ID: 3477503 • Letter: S

Question

Styles Editing .ossification of the zone of proliferation 39. what hormone promotes an increase in the activity of osteoclasts? 40. what lubricates movable joints such as the hip, knee, and elbow? 41. which serous membrane covers the abdominal organs? 42. what part of the joint cavity lubricates the joint, supplies nutrients and removes Parathyroid hormone metabolic wastes, and absorbs shock? .Synovial fluid 43. the rule of nines is used to estimate the percentage of body surface area affected burns . Endomysium .calcium, vitamin c, vitamin k . Ionic by 44. which of the following wraps and surrounds an individual skeletal muscle fiber? 45. bone growth and remodeling depends on adequate intake of 46. which of the following is the strongest bond? 47. muscles with a triangular shape, such as the pectoralis major muscle in the chest, typically have a: 48. cells that develop into osteoblasts are: 49. an atom has 3 electrons in its valence shell what is the atomic number o this . convergent fascicle arrangement . osteogenic cells atom? 50. a group of skeletal muscle fibers together with the surrounding perimysium form a(n): . fascicle

Explanation / Answer

39.bone resorption (where the bone tissue is broken and the minerals in it like calcium ar released into blood )is done by osteoclasts and this process is stimulated by parathyoid hormone

40 synovuial fluid which is know to reduce friction between the articularb cartilage of synovial joints(shoulder ,knee wrist,elbow) and hence providing lubrication.

41 The body has three serous cavities and associated specific membrane lining them.peritoneum is a serous membrane which forms the lining of abdominal cavity.

43 joint cavity also knwn as synovial cavity is the space bewteen two bones and is filles with synovial fluid which provides for easy and smmoth bone movement,remove metabbolic waste and absorb shock(due to its properties of becoming more viscous undr applied pressure)

44 Each muscle fibre is covered by a layer of connective tissue known as endomysium which lies over the muscle fibre membrane(sarcolema)

45 vitamin c: promote the growth of osteoblats and suppresses osteoclasts.

vitamin K: Synthesis of bone forminf and pro osteoblastic proteins like osteocalcin is dependent upon vitamin K

calcium:Required for bone strength

46.ionic bonds and covalent bonds are the two strongest bonds ,among which componds exhibiting ionic bonds are relatively stronger due to bond formed between two oppoitly charged ions which take up a crystal lattice structure which further strengthens the bond .

47 The fasicles (bundles of fibre) which make up the skeletal muscles is exhibit many types of arrangement .one such arrangement is convergent fascicle arrangement exhibited by pectoralis major muscle of the chest givinf it a triangular shape ,where all fascicles converge towards one tendon

48.osteogenic cells undergo diffrentiation to form the bone forming osteoblasts

49 assuming the atom is netral (number of protons is equla to number of electrons) if the valence shell contains 3 electrons , its atomic number might be 5 because : innermost(first shell(K)) can only conatain 2 electrons whereas the next shell(L) can hold maximum of 8 electrons.since the atom here has 3 outermost electrins ,the minimum possible atomic number is 2+3 = 5.

atomic number = number of protons ,which is equal to number of electrins in the neutral atom = 5

50 Fascicle is the term given to a bundle of a particular typle of fibres (muscle fibres or nerve fibres) wrapped in a layer of connective tissue .