Question | Answer |
the two functional divisions of the PNS are the __(1)____ division | sensory |
in which the nerve fiber type called ____(2)_____ carries impulses toward the CNS | afferent |
and the ___(3)___ division | motor |
in which the nerve fiber type called ___(4)____ carried impulses away from the CNS. | efferent |
the motor division of the PNS includes two types of fibers, the ____(5)____ and ____(6)____ motor nerve fibers. | somatic; autonomic |
skeletal muscles are innervated by __(7)___ fibers | somatic motor |
whereas visceral organs are innervated by ___(8)___ fibers. | autonomic motor |
arrange elements in order of stimulation | 1. receptor
2. sensory
3. spinal nerve
4. dorsal root of spinal nerve
5. spinal cord
6. motor nerve fiber
7. bentral root
8. spinal nerve
9. ventral ramus of spinal nerve
10. effector |
in skeletal muscles; respond to muscle stretch | proprioceptor; mechanoreceptor |
in the walls of blood vessels; respond to oxygen content of surrounding interstitial fluid | interceptor; chemoreceptor |
in the skin; responds to a hot surface | exteroceptor; thermoreceptor |
in the eyes; responds to light | exteroceptor; photoreceptor |
in the inner ear; responds to sound | exteroceptor; mechanoreceptor |
in the skin; respond to acid splashing on the skin | exteroceptor; nociceptor |
in the wall of blood vessels; respond to blood pressure | interceptor; mechanoreceptor |
in the stomach wall; respond to an overfull stomach | interceptor; mechanoreceptor |
in the nose; respond to a skunk's spray | exteroceptor; chemoreceptor |
name the four functional types of never fibers | somatic afferent ; somatic efferent ; visceral afferent ; visceral efferent |