Across
- 4. a progressive wave of electric and chemical activity along a nerve fiber that stimulates or inhibits the action of a muscle, gland, or other nerve cell.
- 6. An agent that causes infection or disease
- 10. he state of being immune from or insusceptible to a particular disease
- 13. chemical messengers that your body can't function without.
- 14. a branching figure or marking, resembling moss or a shrub or tree in form
- 17. , the small gap, measured in nanometers, between an axon terminal and any of the cell membranes in the immediate vicinity.
- 18. the change in electrical potential that occurs between the inside and outside of a nerve or muscle fiber when it is stimulated
Down
- 1. a small platelike body, especially a blood platelet.
- 2. a pair of areas on your brain's left and right sides
- 3. a cellular component of the blood that lacks hemoglobin, has a nucleus, ...
- 5. The act of introducing a vaccine into the body to produce protection from a specific disease
- 7. a statement of the meaning of a word or word
- 8. an insulating layer, or sheath that forms around nerves
- 9. the small gap, measured in nanometers, between an axon terminal and any of the cell membranes in the immediate vicinity.
- 11. specialised cells involved in the detection, phagocytosis and destruction of bacteria and other harmful organisms.
- 12. A substance that stimulates the production of an antibody when introduced into the body.
- 15. any of numerous Y-shaped protein molecules produced by B cells as a primary immune defense, each molecule
- 16. the amount of power that is available to a cell to maintain its homeostatic state