The Nervous System

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Across
  1. 1. It is responsible for processing information received from all parts of the body and coordinating activity.
  2. 5. the difference in electric charge between the inside and the outside of a neuron.
  3. 6. carries sensory information from the body's tissues and organs to the central nervous system. It includes all the nerves and structures that convey information about changes in both the external and internal environment to the brain and spinal cord.
  4. 8. the part of the brain that connects the cerebrum with the spinal cord. It controls many basic functions including heart rate, breathing, sleeping, and eating.
  5. 12. the junction or gap where information is transmitted from one neuron (nerve cell) to another
  6. 16. a part of the autonomic nervous system that helps to conserve energy and restore the body to a calm and composed state.
  7. 17. a part of the peripheral nervous system that controls voluntary movements of the skeletal muscles.
  8. 19. a part of the brain located at the back of the skull. It's responsible for coordinating and regulating muscular activity, including balance, coordination, and fine motor skills.
  9. 20. a part of the nervous system that controls involuntary actions, such as the beating of your heart, the widening or narrowing of your blood vessels, and digestion.
  10. 22. an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals
  11. 23. a branched extension of a neuron that receives signals from other neurons and conducts them toward the cell body.
  12. 24. type of cell membrane protein that uses energy from ATP to pump three sodium ions out of the cell and two potassium ions into the cell
  13. 25. a long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.
Down
  1. 2. a chemical substance that is released at the end of a nerve fiber by the arrival of a nerve impulse.
  2. 3. the end part of a nerve cell (neuron) where signals are transmitted to other neurons or to effector cells, such as muscle or gland cells.
  3. 4. It is responsible for processing information received from all parts of the body and coordinating activity.
  4. 7. a part of the autonomic nervous system that prepares the body for action by triggering the fight-or-flight response, such as increasing heart rate and blood pressure, and slowing digestion.
  5. 9. a long, thin, tubular structure made up of nervous tissue, acts as a pathway for transmitting signals between the brain and the rest of the body.
  6. 10. electrical charge of a neuron when it is not active
  7. 11. the individual bones that stack up to make the spine or backbone, providing support to the body and protecting the spinal cord.
  8. 13. an electrical signal that travels along nerve cells, or neurons, to transmit information throughout the body.
  9. 14. Atoms or molecules that have gained or lost one or more electrons, giving them a positive or negative electrical charge.
  10. 15. bundles of fibers that transmit signals in the form of electrical impulses between different parts of the body.
  11. 18. the part that transmits information from the central nervous system to the rest of the body, causing muscles to contract and glands to secrete substances.
  12. 21. the largest part of the brain, responsible for higher brain functions such as thinking, learning, consciousness, and emotions.