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Skeletal Muscle Structure

Membranous channel extending inward from muscle fiber membrane Transverse (T) tubule
Cytoplasm of a muscle fiber Sarcoplasm
Connective tissue located between adjacent muscles Fascia
Layer of connective tissue that separates a muscle into small bundles called fascicles Perimysium
Cell membrane of a muscle fiber Sarcolemma
Layer of connective tissue that surrounds a skeletal muscle Epimysium
Unit of alternating light and dark striations between Z lines Sarcomere
Layer of connective tissue that surrounds an individual muscle fiber Endomysium
Cellular organelle in muscle fiber corresponding to the endoplasmic reticulum Sarcoplasmic reticulum
Cordlike part that attaches a muscle to a bone Tendon
Protein found within thick filament Myosin
A small bundle of muscle fibers Fascicle
The (BLANK) of a muscle is usually attached to a fixed location. Origin
The (BLANK) of a muscle is usually attached to a movable location Insertion
When the forearm is extended at the elbow joint, the (BLANK)muscles act as the prime mover (agonist). Triceps Brachii
The forearm is flexed at the elbow when the (BLANK) muscle contracts. Biceps brachii
A muscle responsible for most of a movement is called a(n)? Agonist
Assisting muscles are called? Synergist
Antagonists are muscles that resist the actions of (BLANK) and cause movements in the opposite direction. Agonists
Created by: bonitasoul
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