Body systems

3. a bodily tissue, structure, or organ (such as a gland or muscle) that becomes active in response to stimulation.
5. system: The glands and organs that make hormones and release them directly into the blood so they can travel to tissues and organs all over the body.
6. glands: An organ that makes hormones that are released directly into the blood and travel to tissues and organs all over the body.
11. The chemical changes that take place in a cell or an organism.
13. membrane-bound organelle found in the cytoplasm of almost all eukaryotic cells.
16. neurons: neuronal cells located in the central nervous system (CNS) controlling a variety of downstream targets.
17. a biological catalyst and is almost always a protein.
18. process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration .

1. portion of a nerve cell (neuron) that carries nerve impulses away from the cell body.
2. a set of instructions for making or preparing something, especially a food dish: a recipe for a cake. A medical prescription.
4. a self-regulating process by which a living organism can maintain internal stability while adjusting to changing external conditions
7. an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.
8. an area of the brain that produces hormones that control: Body temperature, Heart rate, Hunger, Mood.
9. a molecule that an enzyme reacts with.
10. nervous system (CNS): the body's processing centre.
12. the finger-like cells present on the end of a neuron.
14. body: the spherical part of the neuron that contains the nucleus and connects to the dendrites, which bring information into the neuron, and the axon, which sends information to other neurons.
15. chemical substances that act like messenger molecules in the body.