BODYBUILDING SPECIALIST UNIT 1 TEST
QUESTIONS AND ANSWERS
Muscle - ANSWER A group of motor units physiologically separated by a
membrane from other groups of motor units.
Smooth Muscle - ANSWER Regulated by the autonomic nervous system and
includes the muscles lining the digestive tract and covering the blood vessels.
Cardiac Muscle - ANSWER Which includes the heart, as smooth muscle is
regulated by the autonomic nervous system.
Skeletal Muscle - ANSWER Fuses into tendinous insertions that attach to
bones, which are drawn by them, and that causes preferred motion.
Motor Unit - ANSWER Comprises one neuron and all the muscle fibers
innervated by it.
Myofibrils - ANSWER Small aggregations of myofilaments.
Myofilaments - ANSWER The structures of the muscle that contract when
shortened.
Myosin - ANSWER Short, thick filaments that make up part of myofilaments.
Actin - ANSWER Delicate, rod-shaped filaments that form one part of
myofilaments.
Reciprocal Innervation - ANSWER When a muscle (or group of muscles) that
is a prime mover contracts, its antagonist muscle (or group of muscles) relaxes.
QUESTIONS AND ANSWERS
Muscle - ANSWER A group of motor units physiologically separated by a
membrane from other groups of motor units.
Smooth Muscle - ANSWER Regulated by the autonomic nervous system and
includes the muscles lining the digestive tract and covering the blood vessels.
Cardiac Muscle - ANSWER Which includes the heart, as smooth muscle is
regulated by the autonomic nervous system.
Skeletal Muscle - ANSWER Fuses into tendinous insertions that attach to
bones, which are drawn by them, and that causes preferred motion.
Motor Unit - ANSWER Comprises one neuron and all the muscle fibers
innervated by it.
Myofibrils - ANSWER Small aggregations of myofilaments.
Myofilaments - ANSWER The structures of the muscle that contract when
shortened.
Myosin - ANSWER Short, thick filaments that make up part of myofilaments.
Actin - ANSWER Delicate, rod-shaped filaments that form one part of
myofilaments.
Reciprocal Innervation - ANSWER When a muscle (or group of muscles) that
is a prime mover contracts, its antagonist muscle (or group of muscles) relaxes.
