PMS General Principles of the Nervous System Exam
1. What is the primary role of the nervous system?: - manages body activities through thought
processes and controls actions
- processes sensory information to generate appropriate responses
2. What does the central nervous system (CNS) include?: - brain and spinal cord
3. What does the peripheral nervous system (PNS) include?: - cranial nerves, spinal nerves,
and ganglia
4. What is the function of the sensory nervous system?: - detects stimuli and transmits
information from receptors to the CNS
5. What is the function of the motor nervous system?: - initiates and transmits information
from the CNS to effectors
6. What is somatic sensory input?: - sensory input that is consciously perceived from receptors (eyes,
ears, skin)
- VOLUNTARY
,7. What is visceral sensory input?: - sensory input that is not consciously perceived from receptors of
blood vessels and internal organs (heart)
- example is blood pressure
- INVOLUNTARY
8. What is somatic motor?: - motor output that is consciously or voluntarily controlled
- effector is skeletal muscle
9. What is autonomic motor?: - motor output that is not consciously or involuntarily controlled
- effectors are cardiac muscle, smooth muscle, and glands
10. What is the function of the somatic portion of the nervous system?: - transmits
sensory information from receptors on the body surface and deep structures
11. How does information enter the CNS and where does it travel?: - enters CNS
through peripheral nerves
Conducted to multiple sensory areas including:
1. spinal cord: at all levels
2. reticular substance: medulla, pons, and mesencephalon
3. cerebellum
,4. thalamus
5. cerebral cortex
, 12. Where is contraction of skeletal muscles conducted through?: throughout the body
13. Where is contraction of smooth muscle conducted through?: in internal organs
14. Where is secretion of active chemical substances conducted through?: by
exocrine and endocrine glands
15. Where does control of skeletal muscles occur?: - CNS levels
16. What are the CNS levels?: - motor cortex
- cerebellum
- basal ganglia
- reticular substance (medulla, pons, mesencephalon)
- spinal cord
17. What is the specific role of the lower regions of the brain?: - automatic, instantaneous
muscle responses to sensory stimuli
18. What is the specific role of the higher regions of the brain?: - deliberate complex
muscle movements controlled by thought processes
1. What is the primary role of the nervous system?: - manages body activities through thought
processes and controls actions
- processes sensory information to generate appropriate responses
2. What does the central nervous system (CNS) include?: - brain and spinal cord
3. What does the peripheral nervous system (PNS) include?: - cranial nerves, spinal nerves,
and ganglia
4. What is the function of the sensory nervous system?: - detects stimuli and transmits
information from receptors to the CNS
5. What is the function of the motor nervous system?: - initiates and transmits information
from the CNS to effectors
6. What is somatic sensory input?: - sensory input that is consciously perceived from receptors (eyes,
ears, skin)
- VOLUNTARY
,7. What is visceral sensory input?: - sensory input that is not consciously perceived from receptors of
blood vessels and internal organs (heart)
- example is blood pressure
- INVOLUNTARY
8. What is somatic motor?: - motor output that is consciously or voluntarily controlled
- effector is skeletal muscle
9. What is autonomic motor?: - motor output that is not consciously or involuntarily controlled
- effectors are cardiac muscle, smooth muscle, and glands
10. What is the function of the somatic portion of the nervous system?: - transmits
sensory information from receptors on the body surface and deep structures
11. How does information enter the CNS and where does it travel?: - enters CNS
through peripheral nerves
Conducted to multiple sensory areas including:
1. spinal cord: at all levels
2. reticular substance: medulla, pons, and mesencephalon
3. cerebellum
,4. thalamus
5. cerebral cortex
, 12. Where is contraction of skeletal muscles conducted through?: throughout the body
13. Where is contraction of smooth muscle conducted through?: in internal organs
14. Where is secretion of active chemical substances conducted through?: by
exocrine and endocrine glands
15. Where does control of skeletal muscles occur?: - CNS levels
16. What are the CNS levels?: - motor cortex
- cerebellum
- basal ganglia
- reticular substance (medulla, pons, mesencephalon)
- spinal cord
17. What is the specific role of the lower regions of the brain?: - automatic, instantaneous
muscle responses to sensory stimuli
18. What is the specific role of the higher regions of the brain?: - deliberate complex
muscle movements controlled by thought processes
