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14 terms

Skeletal Muscle

STUDY
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Perimysium
Connective tissue covering surrounding a fascicle
T Tubles
Finger like invagivations of plasma membrane
Sarcomere
Smallest contractile unit within individual muscle fibers
Epimysium
Connective tissue covering surrounding the muscle
Sarcolemma
Plasma membrane of skeletal muscle fiber
Sarcoplasmic Reticulum
Stores calcium within muscle fiber
Endomysium
Connective tissue covering surrounding individual muscle fibers
Triad
Two terminal cisternae and a T tubule
Myofibrils
Rod like structures within skeletal muscle fiber that contain thin and thick filaments organized into sarcomers
Synaptic vesicle
Found in synaptic end bulbs of axon terminal ;contains neurotransmitter molecules
motor end plate
Area of sacrolemma across from synaptic end bulbs of axon terminal ; contains neurotransmitter receptors
synaptic cleft
Space between synaptic end bulbs of axon terminal and sarcolemma
axon terminal
Divides into synaptic end bulbs at neuromuscular junction
synaptic end bulb
Parts of axon terminal that form neuromuscular junction