Ohlsen muscle vocabulary

plasma membrane of muscle cell

• sarcomere

• sarcolemma

• sarcoplasmic reticulum

• myosin

enters sarcoplasm causing myosin to bind to actin

• calcium ions

• myosin

• actin

• potassium ions

contractile protein found in thin filament

• actin

• myosin

• dystrophin

• keratin

contractile protein found in thick filament

• actin

• myosin

• keratin

• dystrophin

neurotransmitter found at the neuromuscular junction

• acetylcholine

• acetylcholinesterase

• dopamine

• seratonin

enzyme that breaks down neurotransmitter found at the neuromuscular junction

• acetylcholinesterase

• actinase

• seratonase

• sarcomase

connective tissue around individual muscle fibers

• endomysium

• epimysium

• perimysium

• fascicles

connective tissue around fascicles

• endomysium

• epimysium

• perimysium

• myofibril

connective tissue around the entire muscle

• endomysium

• epimysium

• perimysium

• fascicle

muscle cell

• fascicle

• fiber

• myofilament

• myofibril