Body System

3. - a process of passive transport in which molecules move from an area of higher concentration to one of lower concentration
6. Glands - release hormones into your bloodstream
7. - a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction
10. System - made up of glands that make hormones
12. - the surface on which an organism lives or the substance on which an enzyme can act
13. - a self-regulating process by which a living organism can maintain internal stability while adjusting to changing external conditions
14. - portion of a nerve cell (neuron) that carries nerve impulses away from the cell body
15. - cellular machinery responsible for making proteins
17. Body - one of the three main parts of a nerve cell (or neuron)

1. - projections from the cell body, or soma, of neurons, the cells of the nervous system
2. - membrane-bound cell organelle
4. - a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action
5. Neurons - neuronal cells located in the central nervous system (CNS) controlling a variety of downstream targets
8. - the chemical reactions in the body's cells that change food into energy
9. - a structure deep within your brain
11. Nervous System (CNS) - made up of the brain and spinal cord
15. - biological transducers that convert energy from both external and internal environments into electrical impulses
16. - a part of the body which can respond to a stimulus according to the instructions sent from the nervous system