NSCA CSCS Chapter 1.

NSCA CSCS
Chapter 1

, what does the musculoskeletal system consist of and what does it do? - correct answer
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consists of the bones, joints, muscles, and tendons all configured to allow movement of body
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What part of the brain are the skeletal muscles under control of? and how does it control the
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skeletal muscles? - correct answer The cerebral cortex; it controls the skeletal muscles by
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activating the skeletal muscle cells or fibers through the motor neurons of the PNS
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g g g Do muscles pull or push? - correct answer Muscles ONLY pull
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What makes it seem like muscles can give off a pushing motion? - correct answer The bony
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levers can manifest pushing forces g g g g




g g g How many bones are in the body? (it can vary) - correct answer 206
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g g g Axial Skeleton - correct answer skull, vertebral column, ribs, and sternum
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Appendicular skeleton - correct answer pectoral, left and right scapula and clavicle, bones of
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arms, wrists, and hands, pelvic girdle, and ankles, legs, and feet bones
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g g g What are the three joint types? - correct answer fibrous, cartilaginous, synovial
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Describe the fibrous joint - correct answer A joint where bones are held together by fibrous
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connective tissue. Have virtually no movement g g g g g




g g g Describe the cartilaginous joint - correct answer allow limited movementg g g g g g g g g




Describe synovial joints - correct answer allow considerable amounts of movement; are low
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friction and have large range of motion; sport and exercise movements usually happen about
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these joints g




g g g Hyaline cartilage: - correct answer articulating bone ends are covered in hyaline cartilage
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synovial fluid: (what does it help with in regards to the joint) - correct answer entire joint is
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enclosed in capsule filled with this synovial fluid g g g g g g g




- helps lower the friction in the joint
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g g g uniaxial joints? and ex? - correct answer operate as hinges, rotating about 1 axis; ex= elbows
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biaxial joints? ex? - correct answer allow movement about two perpendicular axis; ex= ankle
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or wrist g




multiaxial joints? - correct answer allow movement by all 3 perpendicular axes; ex= hip and
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shoulder

g g g vertebral column: - correct answer vertebral bones separated by flexible disk
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