Homeostasis & Nerves

1. the meaning of the “P” in PNS.
4. a scientific word for “inside”.
7. the process for maintaining “balance” in the body.
8. the scientific name for a nerve.
11. these are chemical messengers that are sent via the blood.
14. the receiving part of a neuron.
16. the type of neuron that carries messages to the brain.
17. these are cells that can detect a certain stimulus. They are often grouped together in organs.
19. these neurons connect sensory and motor neuron. They are present in brain and spinal cord.
20. the long part of a nerve cell, that carries the electrical signal.
21. an organ that produces hormones.

2. these are attached to motor neurons, they are often muscles, but may be glands.
3. a detected event that brings about a response.
5. the ”sheath” around a nerve cell that insulates it from other electrical signals.
6. what the body does due to a stimulus.
9. a system of the body that sends messages via electrical signals.
10. an automatic nervous response that doesn’t directly involve the brain.
12. the type of neuron that carries messages away from the brain.
13. the gap between neuron.
15. a scientific word for “outside”.
18. the meaning of the “C” in CNS.