QUESTIONS AND CORRECT ANSWERS
Epimysium - CORRECT ANSWER deep fascia/connective tissue around muscle belly
Tendon - CORRECT ANSWER connects muscle to bone; attaches to bone periosteum
Bone Periosteum - CORRECT ANSWER specialized connective tissue covering all
bones
Muscle Fiber - CORRECT ANSWER grouped in bundles in the fasiculi
Fasiculi - CORRECT ANSWER bundle of muscle fibers encased in perimysium
Perimysium - CORRECT ANSWER connective tissue surrounding fasiculi
Endomysium - CORRECT ANSWER connective tissue surrounding each muscle fiber
Sarcolemma - CORRECT ANSWER membrane of each muscle fiber
Motor Neuron - CORRECT ANSWER nerve cell
Neuromuscular Junction - CORRECT ANSWER junction between a motor neuron and
the muscle it innervates
Motor Unit - CORRECT ANSWER a motor neuron and the muscle it innervates
Myofibril - CORRECT ANSWER inside each muscle fiber; contain myofilaments
, Myosin - CORRECT ANSWER thick filaments containing cross-bridge heads
Actin - CORRECT ANSWER thin filaments arranged in a double helix
Sarcomere - CORRECT ANSWER smallest contractile unit of skeletal muscle
A-Band - CORRECT ANSWER alignment of myosin filaments
I-Band - CORRECT ANSWER areas of two adjacent sarcomeres that contain only
actin filaments; changes size with muscle contraction
Z-Line - CORRECT ANSWER end of each sarcomere
H-Zone - CORRECT ANSWER center of sarcomere where only myosin filaments are
present; can disappear with full muscle contraction
Sarcoplasmic Reticulum - CORRECT ANSWER stores calcium
Bioenergetics - CORRECT ANSWER the flow of energy in a biological system;
conversion of macronutrients into energy
Catabolism - CORRECT ANSWER breakdown of large molecules into smaller
molecules
Anabolism - CORRECT ANSWER synthesis of large molecules from smaller
molecules
Exergonic Reactions - CORRECT ANSWER catabolic; energy releasing