Skeletal Muscle Anatomy
What is the connective tissue layer surrounding an entire muscle?
What is the epimysium?
What is the neurotransmitter involved in muscle contraction at the neuromuscular junction (NMJ)?
What is acetylcholine (ACh)?
What are the two main categories of muscles based on their location?
What are axial and appendicular muscles?
What molecules is the immediate source of energy for muscle contraction?
What is ATP?
What type of muscle fiber is fatigue-resistant and relies on aerobic respiration?
What are oxidative fibers?
What type of connective tissue surrounds individual muscle fibers?
What ion is released from the sarcoplasmic reticulum to initiate contraction?
What is calcium (Ca2+)?
What type of muscle controls movements of the head and vertebral column (spine)?
What are axial muscles?
What metabolic pathway is primarily used for energy when sprinting?
What is glycolysis?
What type of contraction occurs when muscle tension increases but the length of the muscle remains the same?
What is isometric contraction?
What is the name for the bundle of muscle fibers within a muscle?
What is a fascicle?
What protein blocks the myosin binding sites on actin?
What is tropomyosin?
What type of muscle controls movements of the limbs and girdles?
What are appendicular muscles?
What compound is formed from pyruvate when oxygen is limited?
What is lactate?
Follow up: Why?
What type of contraction shortens the muscle as it contracts?
What is the name of the thin, flattened sheet of dense irregular tissue that attaches muscle to bone or skin?
What is aponeurosis?
What are the smallest functional units in skeletal muscle composed of repeating arrangements of myofilaments?
What is a sarcomere?
What type of muscle is the orbicularis oculi (muscle that closes your eye)?
What is an axial muscle?
What is the term for the additional oxygen necessary after exercise to restore pre-exercise conditions?
What is oxygen debt?
What type of muscle tissue contains intercalated discs and contracts involuntarily?
What is cardiac muscle?
What is the plasma membrane of a muscle cell called?
What is the sarcolemma?
What are the two types of myofilaments involved in contraction?
What is actin (thin) and myosin (thick)?
What muscle category does the quadriceps femoris belong to?
What are appendicular muscles?
What happens to muscle size and strength during resistance training?
What is hypertrophy (increase in size)?