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part 2 skeletal
functions
Question | Answer |
---|---|
Amphiarthroses | joints that are slightly move |
Projects in which muscles, tendons, ligaments, and other connective tissues | tuberosity, spinous process (spine), trochanter, and crest |
Synarthroses | joints that are immovable |
Fibrous joints | two or more bones joined by fiberous connective tissues |
Abduction | movement of a body part away from the midline |
types of Synovial joint | ball-and-socket, condyloid, gliding, hinge, pivot,and saddle |
Diarthroses | joints that move freely |
Extension | movement increasing the angle between parts of a joint |
Flexion | bending at a joint that decreases the angle between bones |
Synovial Joint | allows free movement, freely movable joints |
Projects to help form joints | condyle, head, facet, and ramus |
What are the functions of the skeletal system? | shape, support, and protect the body; produce blood cells; aid body movements; stores inorganic salts |
Cartilage joint | two or more bones joined together by cartilage |
Abnormal spinal curvatures | scoliosis: spine is NOT aligned; kyphosis: "hunch back" Lordosis: the lumbar vertebrae is extremely curved in |
Rotation | movement turning a body part on its longitudinal axis |
Depression or openings allowing blood vessels and nerves to pass | Foramen, meatus, and fossa |
Blood calcium levels | Parathyroid hormone (PTH): activates osteoclasts Calcitonin (CT): inhibits osteoclasts |