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Across 2. Neural processing where input travels along several pathways 5. These bodies create protein n the neuron cell 6. Here, signals are conveyed as graded potentials (not action potentials.) 8. Cells that support and wrap neurons 10. Part of nervous system that includes sympathetic and parasympathetic divisions 11. The only bone that does not articulate directly with any other bone 12. ________________ cells (Neurolemmocytes) 17. Conscious control (as in nervous system) 19. Movement of neuroransmitters away from the axon terminal 20. Not a sneaker. During contraction, muscle length changes 22. Cell division involves two distinct events: mitosis and ______________ 23. Classified according to: Diameter, Degree of Myelination. Speed of Conduction (2 Words) 24. For a muscle to contract it relies on an electrical current known as an (2 Words) 26. Graded potentials that can initiate an action potential in an axon (acronym) 28. Remaining nucleus and cytoplasm of a Schwann cell 30. The ability for a muscle to shorten forcibly when adequately stimulated 31. Nerve of the brain responsible for smell 32. Membrane potential increasing back to resting potential 35. Sensory division, transmitting impulses toward the CNS 36. Thick filaments are composed of this protein 37. The ability for a muscle fiber to recoil and resume its resting length after being stretched 39. The Staircase Effect 40. The most common synapse, between the axon and dendrite of a neuron 41. Second phase of mitosis 42. Composed of a body, axon, and dendrites 43. Synapses between the axon of one neuron and the soma of another

Down 1. During this state, all voltage gated Na+ and K+ channels are closed 3. Sensory neuron classification 4. Dense collection of myelinated fibers found in the brain and spinal cord (2 Words) 7. Moving substances from the extracellular space across the plasma membrane is: 9. Spherical membranous organelles containing digestive enzymes 10. Slender processes of uniform diameter arising from the hillock 13. Funcional classification include excitatory and inhibitory 14. Moving substances from the cell interior to the extracellular space is called: 15. Most common neuron classification 16. _____________ neuron - conducts impulses toword the synapse 18. An electrical current, or ability to do work 21. Phase of the action potential when NA+ gates are open and K+ are closed 24. Anchor neurons to their nutrient supplies 25. In the sarcolemma a transient change which makes the interior become less negative 27. Complex organelle composed of bundles of myoilaments 29. Presynaptic and postsynaptic membranes are seperated by this (2 Words) 33. With respect to potential, a resting sarcolemma is said to be: 34. Rapid, automatic responses to stimuli 38. Only energy source used for muscle contractile activities