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Skeletal System

Across
is a hormone secreted by the thyroid gland to lower blood calcium levels. 1)osteoblasts are stimulated to increase in number and deposit calcium into bone tissue 2)osteoclasts are inhibited to keep calcium from leaving the bone tissue.
is needed for the production of collagen fibers.
a short band of tough, flexible, fibrous connective tissue that connects two bones or cartilages or holds together a joint.
Freely movable joints.
is secreted by the parathyroid glands to increase blood calcium levels. oIt acts by stimulating osteoclast activity and inhibiting osteoblast activity. oCalcium absorption in the small intestine is increased and loss of calcium within the kidneys is reduced as well.
Stimulates over-all growth and development of bone tissue.
connective tissue composed of adipocytes. Its main role is to store energy in the form of fat, although it also cushions and insulates the body.
Down
Made of Hyaline Cartilage. 1) Reduces friction - helped by its coating of synovial fluid: As the load on the joint increases the spongy cartilage absorbs water, increasing the proportion of lubricating hyaluronic acid in the lubricating film. 2) Absorbs shocks- shock absorber effect helped by contribution from the bone itself immediately behind the layer of articular cartilage
stimulate growth and maturation of bones especially during puberty and close the epiphyseal plates. Includes estrogens, testosterones, and cortisols.
is needed for the production of glucosaminoglycan.
layer of loose connective tissue that includes both elastin fibers and adipose tissue. 1) secretes synovial fluid
a form of vitamin D that aids the absorption of calcium into and out of the blood stream, as well as being necessary for bone deposition. - increasing calcium absorption by small intestine - increasing calcium resorption from the skeleton
Immovable joint.
a fluid-filled sac or saclike cavity, especially one countering friction at a joint.
Slightly movable joint.
stimulate metabolism and healing of bone tissue.
a thin fibrous cartilage between the surfaces of some joints, e.g., the knee.