anatomy Vocab 10/17

2. Contraction of some fibers in skeletal muscle at any given time
4. A narrow extracellular space between the presynaptic and postsynaptic neurons
6. heat of fibrous connective tissue that encloses a muscle
8. Time period following stimulation during which a neuron or muscle fiber will not respond to a stimulus
11. Time between the application of a stimulus and the beginning of a response in a muscle fiber.
12. Contractile fibers within muscle cells
13. Protein that, with actin, contracts and relaxes muscle fiber
14. cordlike or bandlike mass of white fibrous connective tissue that connects a muscle to a mone
15. Stimulation level that must be exceeded to elicit a nerve impulse or a muscle contraction

1. a chemical that an axon end secretes to stimulate a muscle fiber to contract on the neuron to fire and impulse
3. End of a muscle that attaches to a relatively immovable part .
5. End of a muscle attached to a moveable part
7. Structural and functional unit of myofibril
9. A protein in a muscle fiber forms filaments that slide between elements of the protein myosin, contracting muscle fibers.
10. Brief muscular contraction followed by relaxation.
13. neuron A neuron that transmits impulses from the central nervous system to an effector