Nervous System
Across
- 3. The endpoint of a neuron where neurotransmitters are stored
- 4. Provide structural and metabolic support for neurons; cling neurons to capillaries; star-shaped
- 5. Nerve cells that carry impulses towards the central nervous system
- 9. Blood vessels (capillaries) that selectively let certain substances enter the brain tissue and keep other substances out
- 12. a neuron with one process extending from its cell body
- 15. sensory receptor, sensory neuron, interneuron, motor neuron, and effector that are involved in a quick response to a stimulus; both CNS and PNS together
- 16. thin, delicate inner membrane of the meninges
- 17. Nerve cells that conduct impulses away from the central nervous system
- 20. A layer of fatty tissue segmentally encasing the fibers of many neurons; enables greater transmission speed of neural impulses and protects the cell
- 22. neurons within the brain and spinal cord that communicate between the sensory (afferent) inputs and motor (efferent) outputs
Down
- 1. a neural impulse; a brief electrical charge that travels down an axon
- 2. thalamus, hypothalamus, pituitary gland
- 3. the part of the peripheral nervous system that controls the glands and the muscles of the internal organs (such as the heart).
- 6. plasma-like clear fluid circulating in and around the brain and spinal cord
- 7. the division of the peripheral nervous system that controls the body's skeletal muscles
- 8. A neuron that has only two projections (one axon/one dendrite) from the cell body
- 10. Form myelin sheath in CNS
- 11. stem midbrain, pons, medulla oblongata
- 13. thick, outermost layer of the meninges surrounding and protecting the brain and spinal cord
- 14. a specialized cell transmitting nerve impulses; a nerve cell.
- 18. a nerve cell that has many dendrites and a single axon
- 19. three protective membranes that surround the brain and spinal cord
- 21. Cone shaped region of an axon where it joins the cell body.