Autonomic Nervous System Flashcards
What are the constituents of the Autonomic Nervous System?
sympathetic, parasympathetic and enteric nervous system
Post-ganglionic fibres are myelinated or unmyelinated?
all unmyelinated
Sympathetic Nervous system starts at the level of the
thoracolumbar region
the ganglia of the Sympathetic Nervous system are ———– to the CNS and have shorter ———— neurons
Closer
Preganglionic
Main Neurotransmitter of the Sympathetic Nervous system
NA, some ACh (sweat glands)
Preganglionic neuron of both Sympathetic and Parasympathetic Nervous system is in…
Intermediolateral Cell Column
The ganglion of the Sympathetic Nervous system is for
integration and coordination of control
2 Types ganglia in the Sympathetic Nervous system are and they are in charge of
PREvertebral –> Vascular tissue
PARAvertebral —> Non vascular smooth muscle
1 Preganglionic Neuron : Many Postgangionic Neuron
Divergence
Many Preganglionic Neuron : 1 Postgangionic Neuron
Convergence
Hormonal integration in the Sympathetic Nervous system is via the action of (1) released by the (2)
1 Adrenaline
2 Adrenal Glands
Parasympathetic Nervous System is the —— origin
Craniosacral
In the Parasympathetic Nervous System the ganglia lies ——— the organ and thus has short ——ganglionic fibres
Close or within the organ
postganglionic
Neurotransmitter of the Parasympathetic Nervous System
ACh
Most important nuclei of the cranial origin of the Parasympathetic Nervous System
1 Edinger - Westphal
2 Salivatory Nuclei
3 Dorsal Motor & Nucleus Ambiguus
in the intermediolateral cell column the Parasympathetic Nervous System preganglionic neuron is located in relation to the Sympathetic
More medial
The Parasympathetic Nervous System also had hormonal integration T/F
F
There is a larger ratio of pre:post ganglionic neuron in the sympathetic nervous system when compared to the paresympathetic T/F
T
Where is the site of coordination of afferent info for the Autonomic Nervous System
NTS
Where is the site of coordination of autonomic output for the Autonomic Nervous System
The Hypothalamus (sp. paraventricular nucleus)
What type of information does the hypothalamus receives?
Special Sensory
Sensory from intrinsic structures
Hormones
Higher Cortical/Limbic System
The hypothalamus compares info to a specific set point T/F
T
Example of cellular antagonism of the systems
hart and lung
Example of functional antagonism of the systems
pupil and bladder (different targets)
