2024 NSCA CSCS Chapter 1 Study Guide With 100% Verified Answers
- what does the musculoskeletal system consist of and what does it do?
Answer: con- sists of the bones, joints, muscles, and tendons all configured to allow movement of body
- What part of the brain are the skeletal muscles under control of? and how does it
control the skeletal muscles?
Answer: The cerebral cortex; it controls the skeletal muscles by activating the
skeletal muscle cells or fibers through the motor neurons of the PNS
- Do muscles pull or push?
Answer: Muscles ONLY pull
- What makes it seem like muscles can give off a pushing motion?
Answer: The bony levers can manifest pushing forces
- How many bones are in the body? (it can vary)
Answer: 206
- Axial Skeleton
Answer: skull, vertebral column, ribs, and sternum
- Appendicular skeleton
Answer: pectoral, left and right scapula and clavicle, bones of arms, wrists, and hands, pelvic girdle, and ankles, legs, and feet bones
- What are the three joint types?
Answer: fibrous, cartilaginous, synovial
- Describe the fibrous joint
Answer: A joint where bones are held together by fibrous connective tissue. Have virtually no movement
- Describe the cartilaginous joint
Answer: allow limited movement
- Describe synovial joints
Answer: allow considerable amounts of movement; are low friction and have large 1 / 2
range of motion; sport and exercise movements usually happen about these joints
12. Hyaline cartilage:
Answer: articulating bone ends are covered in hyaline cartilage
13. synovial fluid: (what does it help with in regards to the joint)
Answer: entire joint is enclosed in capsule filled with this synovial fluid
- helps lower the friction in the joint
- uniaxial joints? and ex?
Answer: operate as hinges, rotating about 1 axis; ex= elbows
- biaxial joints? ex?
Answer: allow movement about two perpendicular axis; ex= ankle or wrist
- multiaxial joints?
Answer: allow movement by all 3 perpendicular axes; ex= hip and shoulder
17. vertebral column:
Answer: vertebral bones separated by flexible disk
- how many different categories of the vertebral column is there and what are
they called?Answer: there are 5 categories; cervical, thoracic, lumbar, sacral, and coccygeal
- How many disk are in the cervical region of the spine?
Answer: 7 cervical
- How many disk are in the thoracic region of the spine?
Answer: 12 thoracic
- How many disk are in the lumbar region of the spine?
Answer: 5 lumbar
- How many disk are in the sacral region of the spine?
Answer: 5 sacral
- How many disk are in the coccygeal region of the spine?
Answer: 3-5 coccygeal
- / 2