More Subjects
Autonomic Nervous System Division
Student's Name
Institutional Affiliation
Autonomic Nervous System Division
Sympathetic Division
Parasympathetic Division
CNS Exit
Most cranial thoracic segments of the head
Most cranial thoracic parts of the spinal cord.
Location of pre-ganglionic neuronal cell bodies
Located in the ventral roots and segment of body cells
Situated at the left or right vagus in the thoracic cavity vagal that branches to the heart
Pre-ganglionic neuronal length
It originates from the spinal cord
Originates from the brainstem and other segments of the spinal cord
Pre-ganglionic axon location
It runs through the eye membrane to facilitate recognition of an object by the pupil
It runs through the oculomotor nerve via the smooth muscles in the eye.
NT released from Pre-ganglionic neurons
Has the nerve cells that have receptors for transmitters released in the synaptic cleft
The nerve cells facilitate the transmission of receptors to eye
Location of post-ganglionic neuronal cell bodies
Located in the visceral also known as the lateral gray of the spinal cord
Situated in the visceral also known as the lateral gray of the spinal cord
Post-ganglionic neuronal length
It is approximately T-1 to L -4
It is short and thus runs from S1 – S3
Post-ganglionic axon location
It comprises of the innervated pelvic viscera which are the ascending colon along the spinal cord
It consists of innervated pelvic viscera which include the descending colon
Organic innervated
Facilitates secretion of favor viscous
Stimulates the flow of support serous
OVERALL MAIN EFFECTS:
It facilitates the ascending movement of the materials in the body to ensure proper coordination of cells (Snell, 2010).
It facilitates the descending movement of materials in the colon
Effects on:
Heart rate
It speeds up the heartbeat rate to pump more blood to increase the blood pressure.
It facilitates the decrease in heartbeat rate to reduce the blood pressure of the body
Pupil
It enlarges the pupil to increase the visibility of objects when there is less light from the object.
It decreases the size of the pupil to prevent excess light for the object. It helps to protect from damage.
Airways
Clean airway to facilitate transportation of oxygen
Clean airway to enable transport of oxygen
Blood vessels to GI organs
Facilitates move of substances to GI organs
Facilitates movement of materials from GI organs to blood vessels
Blood vessels to muscle
Increases muscles contraction
Decreases muscles contraction
Salivation
Increases salivation
Decrease salivation rate
References
Snell, R. S. (2010). Clinical neuroanatomy. Vancouver: Crane Library at UBC.
More Subjects
Join our mailing list
© All Rights Reserved 2024