hbs 1.2.2- makeup of a muscle terms

Front

tendon

Back

fibrous connective tissue that attaches muscle to bone.

Front

epimysium

Back

the external connective-tissue sheath of a muscle.

Front

myofibril

Back

a threadlike structure, extending longitudinally through a muscle fiber (cell) consisting mainly of thick filaments (myosin) and thin filaments (actin, troponin, and tropomyosin).

Front

perimysium

Back

the connective-tissue sheath that surrounds a muscle and forms sheaths for the bundles of muscle fibers.

Front

muscle cell/fibre

Back

specialized type of cell found in muscle tissues; responsible for the contraction and relaxation of muscles, allowing for various movements and functions within the body.

Front

sarcomere

Back

the basic structural and functional unit of a muscle fiber, responsible for muscle contraction.

Front

actin

Back

a protein that forms the thin filaments in muscle fibers and plays a key role in muscle contraction.

Front

myosin

Back

a protein that forms the thick filaments in muscle fibers and interacts with actin to cause muscle contraction.

Front

neuromuscular junction

Back

the synapse or junction between a motor neuron and a muscle fiber, where nerve impulses are transmitted to initiate muscle contraction.

Front

muscle hypertrophy

Back

the increase in the size of muscle fibers, often as a result of resistance training.