Autonomic Nervous System- Exam Questions and Correct Answers Latest Update 2025 (Rated A+)
describe the function of autonomic nervous system (ANS) - Answers involuntary nervous system
complex network of cells that controls the body's internal environment
name the 2 sites for the central control of the ANS - Answers hypothalamus
medulla oblongata
what functions of the ANS does medulla oblongata regulate - Answers respiration
cardiac regulation
vasomotor activity
what are the three subdivisions of the Autonomic Nervous System - Answers Enteric Nervous System
Sympathetic division
Parasympathetic division
describe the function enteric nervous system - Answers how the body digests food
What is the ANS made up of? - Answers Neurons
glial cells
nuclei
ganglia
what do neurons do - Answers send and relay signals
what do glial cells do - Answers support cells for the neurons
supply nutrients
what are nuclei - Answers nerve cell clusters who have the same job or connections
what are ganglia - Answers network of nerve cells that don't have the same job or connections but are in
the same area or have connections to the same system
what is the function of the ANS - Answers governs the organ systems which are not controlled by
conscious inputs from the brain cortex
what does sympathetic and parasympathetic divisions of the ANS regulate - Answers vital functions and
other physiological mechanisms
describe the sympathetic division - Answers prepare the body for activity
, describe the parasympathetic division - Answers more discrete and promotes restorative functions
what do most organs receive under under normal conditions - Answers balanced dual innervation
what are the target organs of the ANS? - Answers control the smooth muscle, tone of blood vessels,
bronchi and intestines
modulate heart and respiratory rates by innervating the independent pacemakers of these organs
regulate the secretion of exocrine glands
describe autonomic efferents - Answers efferents that carry information from the CNS to target organs
name the 4 regions in the vertebral column - Answers cervical
thoracic
lumbar
sacral
define paravertebral - Answers running along the side of the vertebral column
what distinguishes the paravertebral ganglia - Answers their sites of origin
name the 2 types of nerves in the ANS - Answers pre-ganglion nerves
post-ganglion nerves
where is the origin point of pre-ganglion nerves - Answers in the spinal cord
what determines if the impulse is sympathetic or parasympathetic - Answers where the impulse
originates from in the spinal cord
what is the type of outflow in the sympathetic division - Answers thoracolumbar outflow
what are the sources of the sympathetic - Answers the cells of the intermediolateral column in the
thoracic spinal cord
describe pre-ganglionic fibres in the sympathetic - Answers short
describe post-ganglionic fibres in the sympathetic - Answers long
what is the type of outflow in the parasympathetic division - Answers craniosacral outflow
where are the parasympathetic cells located - Answers in different nuclei throughout the brainstem as
well as the sacral spinal cord
describe the pre-ganglionic fibres in the parasympathetic division - Answers long
describe the function of autonomic nervous system (ANS) - Answers involuntary nervous system
complex network of cells that controls the body's internal environment
name the 2 sites for the central control of the ANS - Answers hypothalamus
medulla oblongata
what functions of the ANS does medulla oblongata regulate - Answers respiration
cardiac regulation
vasomotor activity
what are the three subdivisions of the Autonomic Nervous System - Answers Enteric Nervous System
Sympathetic division
Parasympathetic division
describe the function enteric nervous system - Answers how the body digests food
What is the ANS made up of? - Answers Neurons
glial cells
nuclei
ganglia
what do neurons do - Answers send and relay signals
what do glial cells do - Answers support cells for the neurons
supply nutrients
what are nuclei - Answers nerve cell clusters who have the same job or connections
what are ganglia - Answers network of nerve cells that don't have the same job or connections but are in
the same area or have connections to the same system
what is the function of the ANS - Answers governs the organ systems which are not controlled by
conscious inputs from the brain cortex
what does sympathetic and parasympathetic divisions of the ANS regulate - Answers vital functions and
other physiological mechanisms
describe the sympathetic division - Answers prepare the body for activity
, describe the parasympathetic division - Answers more discrete and promotes restorative functions
what do most organs receive under under normal conditions - Answers balanced dual innervation
what are the target organs of the ANS? - Answers control the smooth muscle, tone of blood vessels,
bronchi and intestines
modulate heart and respiratory rates by innervating the independent pacemakers of these organs
regulate the secretion of exocrine glands
describe autonomic efferents - Answers efferents that carry information from the CNS to target organs
name the 4 regions in the vertebral column - Answers cervical
thoracic
lumbar
sacral
define paravertebral - Answers running along the side of the vertebral column
what distinguishes the paravertebral ganglia - Answers their sites of origin
name the 2 types of nerves in the ANS - Answers pre-ganglion nerves
post-ganglion nerves
where is the origin point of pre-ganglion nerves - Answers in the spinal cord
what determines if the impulse is sympathetic or parasympathetic - Answers where the impulse
originates from in the spinal cord
what is the type of outflow in the sympathetic division - Answers thoracolumbar outflow
what are the sources of the sympathetic - Answers the cells of the intermediolateral column in the
thoracic spinal cord
describe pre-ganglionic fibres in the sympathetic - Answers short
describe post-ganglionic fibres in the sympathetic - Answers long
what is the type of outflow in the parasympathetic division - Answers craniosacral outflow
where are the parasympathetic cells located - Answers in different nuclei throughout the brainstem as
well as the sacral spinal cord
describe the pre-ganglionic fibres in the parasympathetic division - Answers long
