32.2 Vocab Flashcards Preview

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Flashcards in 32.2 Vocab Deck (8)
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1
Q

muscle fiber

A

long slender skeletal muscle cells

2
Q

myofibril

A

tightly packed ailment bundles within skeletal muscle fibers

3
Q

myosin

A

thick filament of protein found in skeletal muscle cells

4
Q

actin

A

thin filament of protein found in muscles

5
Q

sarcomere

A

unit of muscle contraction: compose d of two z-lines and the filaments between them

6
Q

neuromuscular junction

A

the point of contact between a motor neuron and a skeletal muscle cell

7
Q

acetylcholine

A

a neurotransmitter that produces an impulse in a muscle cell

8
Q

tendon

A

tough connective tissue that connects skeletal muscles to bones