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Course MSCI 522_Fall 21 - Principles of Physiology II
Lesson Divisions of the Autonomic Nervous System
Student email
ANS divisions
What are some typical responses of the two di erent divisions? Categorize the following st
"Flight or ght"
sympathetic division p
Decreases heart rate Dilate bronchioles
Dilate bronchioles Increase blood pressure I
Increase blood pressure Increase heart rate
Increase digestive activity Stimulate the adrenal medulla to
release adrenaline
Increase heart rate
Mobilize fat and glucose for
Mobilize fat and glucose for
energy
energy
Stimulate the adrenal medulla to
release adrenaline
Which statement is true for the ANS?
The ANS has both a erent and e erent
components.
The ANS is only an e erent system.
The ANS is only an a erent system.
,ANS activity is regulated by central nervous system (CNS) input from the spinal cord, brain s
cerebral cortex.
How do each of these regions in uence the ANS? Match each statement with the appropria
Acts at the subconscious level through the Integrates cardiovascular, respira
limbic system. swallowing function.
Integrates urination, defecation, erection,
Overarching integration of A
and ejaculation re exes.
Overarc
Integrates car
sw
Integrates ur
and
Acts at the su
Anatomical organization
On average, how many postganglionic neurons does a
single preganglionic neuron synapse with?
, The preganglionic neurons originate at di erent locations on the spinal cord. Can you name
Cervical
Coccygeal
Cervical
Lumbar
Sacral
Thoracic Thoracic
Lumbar
Sacral
Coccygeal
How does the location of the ganglia explain the length of the preganglionic neurons and po
The preganglionic neurons have long axons and postganglionic neurons have short axons i
division. This is because of the location of the ganglia. Since they are located near or in the
preganglionic neurons need to travel further than then postganglionic neurons.
Oppositely, the preganglionic neurons have short axons and postganglionic neurons have
sympathetic division. The ganglia are located near the CNS and spinal cord either in the pa
Course MSCI 522_Fall 21 - Principles of Physiology II
Lesson Divisions of the Autonomic Nervous System
Student email
ANS divisions
What are some typical responses of the two di erent divisions? Categorize the following st
"Flight or ght"
sympathetic division p
Decreases heart rate Dilate bronchioles
Dilate bronchioles Increase blood pressure I
Increase blood pressure Increase heart rate
Increase digestive activity Stimulate the adrenal medulla to
release adrenaline
Increase heart rate
Mobilize fat and glucose for
Mobilize fat and glucose for
energy
energy
Stimulate the adrenal medulla to
release adrenaline
Which statement is true for the ANS?
The ANS has both a erent and e erent
components.
The ANS is only an e erent system.
The ANS is only an a erent system.
,ANS activity is regulated by central nervous system (CNS) input from the spinal cord, brain s
cerebral cortex.
How do each of these regions in uence the ANS? Match each statement with the appropria
Acts at the subconscious level through the Integrates cardiovascular, respira
limbic system. swallowing function.
Integrates urination, defecation, erection,
Overarching integration of A
and ejaculation re exes.
Overarc
Integrates car
sw
Integrates ur
and
Acts at the su
Anatomical organization
On average, how many postganglionic neurons does a
single preganglionic neuron synapse with?
, The preganglionic neurons originate at di erent locations on the spinal cord. Can you name
Cervical
Coccygeal
Cervical
Lumbar
Sacral
Thoracic Thoracic
Lumbar
Sacral
Coccygeal
How does the location of the ganglia explain the length of the preganglionic neurons and po
The preganglionic neurons have long axons and postganglionic neurons have short axons i
division. This is because of the location of the ganglia. Since they are located near or in the
preganglionic neurons need to travel further than then postganglionic neurons.
Oppositely, the preganglionic neurons have short axons and postganglionic neurons have
sympathetic division. The ganglia are located near the CNS and spinal cord either in the pa
