| A | B |
|---|
| autonomic nervous system(N/S) | collection of nerves, ganglia, and plexuses through which visceral organs, heart, blood vessels, glands, and smooth muscles receive stimulation |
| cranial nerves | twelve pairs of nerves that begin in the brain and transmit messages to various parts of the face and head to stimulate various functios |
| effector | the responding organs |
| femoral nerve | found in the lumbar plexus, stimulates the hip and leg |
| mixed nerve | nerve composed of both afferent and efferent fibers |
| motor (efferent) nerve | nerve fibers carries impulses from the brain or spinal cord to muscles, organs or glands also known as efferent nerve |
| peripheral nervous system(N/S) | made up of 12 pairs of cranial nerves and 31 pairs of spinal nerves |
| plexus | a network of spinal nerves |
| receptor | sensory nerve that receives a stimulus and transmits it to the CNS |
| sensory (afferent) nerve | nerve fibers carrying impulses to the brain or spinal cord from the sense organs: also called the afferent nerve |
| somatic nervous system(N/S) | a division of the peripheral nervous system. conducts impulses from the brain and spinal cord to the skeletal muscles thereby causing responses to changes in our external environment |
| spinal nerves | thirty one pairs, originate in the spinal cord |
| stimulus | any change in environment |
| sympathetic system | division of autonomic nervous system |
| parasympathetic system | division of the autonomic nervous system, inhibits or opposes the effects of the sympathetic nervous system |
| phrenic nerve | stimulates the diaphragm |
