muscular system 310
Terms
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- a muscle whose contraction opposes an action of another muscle
- antagonist
- a broad sheet of fibrous connective tissue that attaches a muscle to another muscle or connective tissue
- aponeurosis
- a molecule that stores a small amount of energy in a muscle fiber
- creatine phosphate
- the attachment of a muscle that moves when the muscle contracts
- insertion
- a motor neuron and the muscle fibers it controls
- motor unit
- a single muscle cell
- muscle fiber
- the state of slight contraction in a skeletal muscle
- muscle tone
- one of many contractile fibers within a muscle cell
- myofibril
- a molecule that stores a small amount of oxygen in a muscle fiber
- myoglobin
- a chemical released by axon tips of neurons that activates a muscle fiber, gland, or another neuron
- neurotransmitter
- the attachment of a muscle that remains fixed when the muscle contracts
- origin
- the smallest contractile unit of a myofibril
- sarcomere
- a narrow band of fibrous connective tissue that attaches muscle to a bone
- tendon
- a sustained muscle contraction
- tetanic contraction