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Human Bio
Muscle Terms
17
Physiology
11th Grade
12/13/2011

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Term
Fascia
Definition
Fibrous connective tissue that surrounds each muscle.
Term
Epimysium
Definition
Layer of connective tissue found under the fascia.
Term
Perimysium
Definition
Layer of connective tissue that is found in the inner muscle to separate the muscle tissues into compartments.
Term
Endomysium
Definition
Connective tissue that surrounds the muscle fiber.
Term
Fasicle
Definition
Compartments of muscle that contain bundles of skeletal muscle fibers.
Term
Sarcomere
Definition
The structural and functional unit of a myofibril.
Term
Sarcoplasmic Reticulum
Definition
the "highway" system. Like the endoplasmic reticulum.
Term
Motor Neuron
Definition
A neuron that transmits impulses from the central nervous system to an effector.
Term
Neuromuscular Junction
Definition
the synapse between the motor neuron and muscle fiber.
Term
neurotransmitter
Definition
chemical that an axon end secretes on an effector or another neuron.
Term
Synaptic gap(cleft)
Definition
The space between two cells forming a synapse.
Term
Myofibril
Definition
Contractile fibers in muscle cells.
Term
Myosin
Definition
thick filaments made of the protien myosin.
Term
Actin
Definition
thin filaments made of the protien actin
Term
Acetylcholine
Definition
a neurotransmitter
Term
ATP
Definition
energyy!
Term
Creatine phosphate
Definition
a muscle biochemical that stores energy.
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