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A&P I CNS-PNS
Stack #20513
| Question | Answer |
|---|---|
| the brain has ___ pairs of cranial nerves | 12 |
| the spinal cord has ___ pairs of spinal nerves | 31 |
| job of sensory receptors | detect internal and external stimuli |
| integrative function | processing of info |
| sensory (affeent) carry sensory info. toward | brain and spinal cord |
| motor (efferent) function | carry motor info. from brain/ spinal to respective nerves |
| CNS | central nervous system- brain &spinal cord |
| PNS | everything but CNS |
| SNS | somatic nervous system- transmits signal to skeletal muscle only |
| ANS | autonomic nervous system- |
| 3 types o f receptors | visceral (ANS), skeletal (SNS), special sensors |
| nervous tissue consists of | neurons and neuroglia |
| neurons | excitable cells, don't multiply or divide, found in CNS |