PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
A sympathetic nerve originates in the middle of the spinal cord and has a long axon to the synapse of a second neuron. From the second cell, there is a short axon that goes to the target neuron.
|
|
|
A sympathetic nerve originates in the middle of the spinal cord and has a short axon to the synapse of another neuron. From the second cell, there is a long axon that goes to target neuron
|
|
|
A sympathetic nerve originates in the brain stem and has a short axon to the synapse of another neuron. From the second cell, there is a long axon that goes to the target neuron.
|
|
|
A sympathetic nerve originates in the bottom of the spinal cord and has a long axon to the synapse of another neuron. From the second cell, there is a short axon that goes to the target neuron.
|
Detailed explanation-1: -Your sympathetic and parasympathetic nervous systems have opposite roles. While your sympathetic nervous system carries signals that put your body’s systems on alert, your parasympathetic carries signals that relax those systems. The two systems work together to keep your body in balance.
Detailed explanation-2: -Sympathetic pathways leave the central nervous system via preganglionic neurons located in the intermediolateral columns of the spinal cord from thoracic to mid-lumbar levels.
Detailed explanation-3: -The sympathetic nervous system is part of the autonomic nervous system, along with its counterpart, parasympathetic nervous system. The origin of the sympathetic nervous system is found within the thoracic and lumbar segments of the spinal cord also known as the thoracolumbar division (T1 to L2, 3).