Autonomic Nervous System I Flashcards
GVA
General visceral Afferent
GVE
General Visceral Efferent
Efferent is…
Motor, Ventral
Afferent is..
Sensory, Dorsal
How many neurons between the CNS and the target for GVA?
1
How many neurons between the CNS and the target for GSA?
1
Where are the GVA cell bodies located
sensory ganglia of the spinal and cranial nerves
How neurons between the CNS and the target for GVE?
2
What are the 3 types of autonomic motor ganglia?
Chain, Collateral, Terminal
What type of neuron contains preganglionic and postganlionic components?
GVE
What type of output does the GVE give?
Motor output to glands, smooth muscle, cardiac muscle
What are the functional and anatomic divisions of GVE?
sympathetic and parasympathetic
How do sympathetic and parasympathetic systems differ?
Locations of the preganglionic and postganglionic cell bodies
Neurotransmitters and receptors
Patterns of innervation
Where are preganglionic sympathetic (thoracolumbar) cell bodies located?
intermediolateral cell column in gray matter in T1-L2
Where are postganglionic cell bodies of the sympathetic nervous system located?
paravertebral chain or collateral prevertebral motor ganglia and medulla of adrenal gland
Where does sympathetic innervation project to?
- Visceral structures of body wall (limbs, trunk, neck)
- Visceral structures of head
- Viscera of thorax
- Viscera of abdomen and pelvis
The parasympathetic (craniosacral) preganglionic cell bodies are located
in the nuclei of CN (3,7,9,10) in brain stem and in ventral horn of gray matter S2-S4
Where are parasympathetic postganglionic cell bodies located?
terminal motor ganglia near the target (except for head)
Where are parasympathetic postganglionic cell bodies located in the head?
usually on the surgace of or embedded in the wall of organ innervated
What three regions does the parasymphathetic nervous system project to?
Visceral Structures of head
Viscera of thorax and upper abdomen
viscera of lower abdomen and pelvis
T or F one preganglionic neuron may synapse with many postganglionic neurons
T
Where are the 14 preganglionic fibers of the sympathetic nervous system located?
T2-L2
What are is the name for the 14 presympatheic spinal nerves?
White rami communicantes
