NSCA CSCS Vocabularies Review (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A

NSCA CSCS Vocabularies Review (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A Q: perimysium Answer: covers bundles of muscle fibers (fascicli) Q: endomysium Answer: surrounds each individual muscle fiber Q: sarcolemma Answer: continuous with the muscle fibers membrane and endomysium Q: motor neuron Answer: nerve cell Q: neuromuscular junction Answer: where a nerve cell innervates muscle fibers, each muscle cell has only one, a motor neuron innervates many muscle fibers Q: motor unit Answer: motor neuron and the muscle fibers it innervates Q: sarcoplasm Answer: cytoplasm of a muscle fiber, contains contractile components which consist of protein filaments, other proteins, stored glycogen and fat particles, enzymes, and specialized organelles such as mitochondria and the sarcoplasmic reticulum Q: myofibrils Answer: contained in the sarcoplasm, contains myofilaments responsible for contracting the muscle Q: myosin Answer: thick myofilament with cross bridges that protrude away at regular intervals Q: cross bridges Answer: attached to myosin Q: actin Answer: thin myofilament of two strands arranged in a double helix Q: sarcomere Answer: smallest contractile unit of skeletal muscle Q: A-Band Answer: dark corresponding with the alignment of myosin Q: I-Band Answer: light corresponding actin of adjacent sarcromeres Q: Z-Line Answer: in the middle of the I-Band, appears as a thin, dark line running longitudinally Q: H-Zone