nervous system

2. term for spinal column.
4. A type of neuron that carries signals from the brain or spinal cord to muscles or glands, resulting in voluntary movements.
6. The part of the brain located at the back of the head, responsible .
7. Relating to the senses or the ability to perceive stimuli from the environment.
8. Nerves: Nerves that branch out from the spinal cord and transmit signals.
13. The basic building block of the nervous system, responsible for transmitting electrical signals.
14. The body's primary communication system that coordinates and controls the functions of different body parts
16. The tiny gap between two nerve cells where electrical or chemical signals are transmitted.
18. An automatic, involuntary response to a stimulus without conscious thought.

1. an automatic physiological reaction to an event that is perceived as stressful or frightening.
3. A bundle of fibers that transmits signals between the brain, spinal cord, and other parts of the body.
5. A network of nerves that extends from the central nervous system to the rest of the body.
9. The part of the peripheral nervous system that controls involuntary functions, such as heart rate and digestion.
10. The organ located in the head that serves as the control center of the nervous system, responsible for processing information, thinking, and coordinating body functions.
11. The control center of the nervous system, consisting of the brain and spinal cord.
12. A chemical messenger that transmits signals between nerve cells.
15. This system's activity increases when you're stressed, in danger or physically active.
17. A bundle of nerves that runs down the back and connects the brain to the rest of the body.