1. | peripheral nervous system | A. | A process in which a system is turned off by the condition it produces. | |
2. | central nervous system | B. | The part of the nervous system consisting of all of the nerves located outside the central nervous system. | |
3. | negative feedback | C. | A bundle of nerve fibers. | |
4. | pituitary gland | D. | The junction where one neuron can transfer an impulse to the next structure. | |
5. | fertilization | E. | A part of the brain that links the nervous system and the endocrine system. | |
6. | nerve impulse | F. | The chemical produced by an endocrine gland and affects growth and development. | |
7. | hypothalamus | G. | An endocrine gland that regulates many body activities. | |
8. | target cell | H. | A cell that carries information through the nervous system. | |
9. | hormone | I. | A cell in the body that recognizes a hormone’s chemical structure. | |
10. | synapse | J. | The message carried by a neuron. | |
11. | neuron | K. | An automatic response that occurs rapidly and without conscious control. | |
12. | reflex | L. | The process in sexual reproduction in which an egg cell and a sperm cell join to form a new cell. | |
13. | gland | M. | An organ that produces and releases chemicals either through ducts or into the bloodstream. | |
14. | nerve | N. | The division of the nervous system consisting of the brain and spinal cord. | |
15. | duct | O. | A tiny tube through which chemicals are released from a gland. |
B | 1. | peripheral nervous system | A. | A process in which a system is turned off by the condition it produces. |
N | 2. | central nervous system | B. | The part of the nervous system consisting of all of the nerves located outside the central nervous system. |
A | 3. | negative feedback | C. | A bundle of nerve fibers. |
G | 4. | pituitary gland | D. | The junction where one neuron can transfer an impulse to the next structure. |
L | 5. | fertilization | E. | A part of the brain that links the nervous system and the endocrine system. |
J | 6. | nerve impulse | F. | The chemical produced by an endocrine gland and affects growth and development. |
E | 7. | hypothalamus | G. | An endocrine gland that regulates many body activities. |
I | 8. | target cell | H. | A cell that carries information through the nervous system. |
F | 9. | hormone | I. | A cell in the body that recognizes a hormone’s chemical structure. |
D | 10. | synapse | J. | The message carried by a neuron. |
H | 11. | neuron | K. | An automatic response that occurs rapidly and without conscious control. |
K | 12. | reflex | L. | The process in sexual reproduction in which an egg cell and a sperm cell join to form a new cell. |
M | 13. | gland | M. | An organ that produces and releases chemicals either through ducts or into the bloodstream. |
C | 14. | nerve | N. | The division of the nervous system consisting of the brain and spinal cord. |
O | 15. | duct | O. | A tiny tube through which chemicals are released from a gland. |