The protective layers of tissue that surround the brain and spinal cord are ... What are the two types of brain and spinal cells? 18. ... What is a ga...
Biology Chapter 23 Review Sheet 1. What are the two major divisions of the nervous system? 2. What is the principle organ of the nervous system? 3. What is the thick bundle of nerve fibers that is located within the vertebral column? 4. What is the triple layer of protective tissues that covers the brain and spinal cord? 5. What is the short, branched extension of neuron that receives nerve impulses from other neurons and conducts them toward the cell body? 6. What is the fatty, white covering found in the white matter of the brain and spinal cord? 7. What is the division of the nervous system that includes the cranium and spinal nerves? 8. What is the long fiber of a neuron that transmits signals from the cell body to other nerve cells? 9. What are the fibers that carry information toward the cell body called? 10. What are neurons that relay messages between other neurons called? 11. Nerve fibers that have a myelin covering make up what? 12. The protective layers of tissue that surround the brain and spinal cord are called what? 13. The part of the brain that functions primarily to coordinate muscle activity is the what? 14. The part of the brain primarily responsible for thought, memory, voluntary actions, thinking, and intelligence is the what? 15. The lowest part of the brain stem, which controls breathing and heartbeat, is the what? 16. What are the three layers of the meninges? 17. What are the two types of brain and spinal cells? 18. Where do you find cerebral spinal fluid? 19. Explain the difference between grey and white matter.
20. What is a ganglion? 21. What are the three types of neurons? 22. What are the functions of the three types of neurons? 23. What do the two hemispheres of the brain do?
axon - the long extension of a neuron that carries nerve impulses away from the body of the cell.
myelin sheath - the fatty substance that surrounds and protects some nerve fibers
node of Ranvier - one of the many gaps in the axon terminals - the hair-like ends myelin sheath - this is where the action potential of the axon occurs during saltatory conduction along the axon cell body - the cell body of the nucleus - the organelle in the cell body of the neuron; it contains the nucleus (also neuron that contains the genetic material of the cell called the soma) Schwann's cells - cells that produce myelin - they dendrites - the branching structure are located within the myelin sheath. of a neuron that receives messages (attached to the cell body)
Be able to label the lobes of the brain and list their function: Function of Frontal Lobe: Function of Parietal Lobe: Function of Occipital Lobe: Function of Temporal Lobe:
Be able to label the parts of the brain and know the function of the following: Function of cerebellum: Function of Medulla Oblongata: Function of the Pons: Function of the cerebrum: Function of the Corpus Callosum: Function of the midbrain:
