A system that is released at the junctions between neurons and skeletal muscle fibers
The protein in thick myofilaments
A myofilament of the one of the two types making up myfibrils
Attachment site for the thick filaments
True or False: actylcholine is reabsorbed into the axon terminal once a muscle has been simulated
True or False: In order for a muscle fiber to relax, calcium must be reabsorbed into the sarcoplasmic reticulum
Makes up single skeletal muscle which is covered up by fasica
A cell membrane
Fifth step in muscle contraction
First step in muscle contraction
Fourth Step in muscle contraction
Made up of an aggregate of similar proteins
Basic unit of striated muscle tissue
Down
Last step in muscle contraction
An organelle that provides the muscle with energy in the form of ATP
A protein found in all eukaryotic cells
Network of tubules that store and rerelease calcium ions
Any of the dark bands across a striated muscle fiber
True of False: A muscle fiber is either fully contracted or fully relaxed; there is no inbetween
A protein of muscle that forms a complex with troponin regulating the interaction of actin and myosin in muscle contraction
True or False: The ATP necessary for muscle contraction is generated by the sarcoplasm of a muscle cell
Functional unit of a muscle
Narrow and less dense zone of myosinfilaments
True or False: Muscles always shorten during contraction
True or False: Nuerotrasmitters are released from the axon terminals of motor neurons during muscle stimulation
A protein found in muscle tissue as a thick filament
Subunits within a muscle cell
A protein of muscle that together with tropomyosin forms a regulatory protein
Thin layers of connective tissue that help support muscle structure
Layer of fascia around the cell membrane of a muscle cell
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