Across
- 5. simple, automatic response to a sensory stimulus, such as the knee-jerk response
- 6. also known as the skeletal nervous system
- 7. (CNS)the brain and spinal cord
- 8. division of the autonomic nervous system that calms the body
- 11. (ANS)its sympathetic division arouses, and its parasympathetic division calms
- 14. neurons that carry outgoing information from the brain and spinal cord to the muscles and glands (efferent)
- 15. neurons within the brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs
- 16. a pair of endocrine glands that sit just above the kidneys and secrete hormones (epinephrine and norepinephrine) that help arouse the body in times of stress
Down
- 1. division of the autonomic nervous system that arouses the body
- 2. the bodys slow chemical communication system
- 3. (PNS) the sensory and motor neurons that connect the central nervous system (CNS) to the rest of the body
- 4. the body's speedy, electrochemical communication network, consisting of all the nerve cells of the peripheral and central nervous system
- 9. the endocrine's system most influential gland
- 10. chemical messengers that are manufactured by the endocrine glands travel through the bloodstream and affect other tissues
- 12. bundled axons that form neural "cables" connecting the central nervous system with muscles, glands, and sense organs
- 13. neurons that carry incoming information from the sensory receptors to the brain and spinal cord (afferent)