NASM - Chapter 5; End of Chapter Quiz With Complete Solutions

What are the 3 types of muscles in the body? - ANSWER-skeletal cardiac smooth Human movement is accomplished through the functional integration of three systems within the human body: the nervous system, the skeletal system, and what other system? - ANSWER-muscular system What is explained by the sliding filament theory? - ANSWER-The shortening of a sarcomere to produce a muscle contraction What are the two components of the central nervous system? - ANSWER-The brain and spinal cord What is the name of the specialized cell that is the functional unit of the nervous system? - ANSWER-neuron Which term describes the movement of bones, such as flexion and extension? - ANSWER-Osteokinematics Which joint has the simplest movement, moving either back and forth or side to side? - ANSWER-non axial joint Which mechanoreceptor is sensitive to changes in muscular tension and rate of that tension change, causing the muscle to relax, which prevents the muscle from excessive stress and possible injury? - ANSWER-Golgi tendon organs What best describes the all-or-nothing principle? - ANSWER-A motor unit will either contract maximally or not at all. One of the two interdependent divisions of the nervous system is the central nervous system. What is the second division? - ANSWER-Peripheral nervous system What is the function of the neuromuscular junction? - ANSWER-The site where the nervous system and muscle fibers communicate What is the purpose of the intervertebral discs? - ANSWER-They act as shock absorbers. What surrounds the skeletal muscles and connects them to other surrounding muscles? - ANSWER-Fascia