NASM CPT Chapter 5 Study Guide
Calcium is often associated with bone health, but why is it also important for muscular function?
It stimulates actin and myosin activity.
Which of the following is the functional unit of a muscle cell?
A sarcomere
At what age is the adolescent brain considered to be fully developed?
25
What are the two divisions of the skeletal system?
Axial and appendicular
Which joint is the most mobile, able to move in all three directions?
Ball-and-socket
What is the correct order of segments for the spine, starting at the top?
Cervical, thoracic, and lumbar
Which of these is one of the major curvatures of the spine from a posterior view?
Concave lumbar curve
A person walks differently when they move from a sidewalk onto the sand. This is regulated by what function?
Motor function
Humans can learn new things at any stage of life, due to which process that causes the brain to reform neural pathways?
Neuroplasticity
Which joint has the simplest movement, moving either back and forth or side to side?
Nonaxial
Which type of joint includes the sutures of the skull?
Nonsynovial
Which term describes the movement of bones, such as flexion and extension?
Osteokinematics
Which system puts the body into a relaxed state, termed rest and digest?
Parasympathetic nervous system
What is the name for projections protruding from the bone to which tendons and ligaments attach?
Processes
When a gymnast balances on a beam, they are aware of their body's general orientation and the relative position of its parts. This is due to which key sensory function?
Proprioception
What is a characteristic of a type II muscle fiber?
Short-term contractions
Which characteristic is exhibited by type I muscle fibers?
Slow to fatigue
When a client's heart rate is raised during cardio activities, this is being caused by which system?
Sympathetic nervous system
Which joints are most associated with human movement?
Synovial
What is the function of the neuromuscular junction?
The site where the nervous system and muscle fibers communicate
What are the two components of a sarcomere?
Actin and myosin
At what age is total peak bone mass reached?
30
What best describes the all-or-nothing principle?
A motor unit will either contract maximally or not at all.
What surrounds the skeletal muscles and connects them to other surrounding muscles?
Fascia
What is the fibrous tissue that connects bone to bone?
Ligament
What is the bone type of the clavicle, radius, and ulna?
Long
Which part of a cell is responsible for using nutrients to create energy for the cell?
Mitochondria
Which type of muscle fiber has a large number of capillaries?
Type I