Autonomic Nervous System Flashcards
origin of sympathetic nervous system
T1-L2, L3, thoracolumbar division, cervical ganglia, inferior mesenteric ganglia
what is the origin of the parasympathetic nervous system?
Cranial nerve: 3, 7, 9, 10 and part of 11. S2-S4, and craniosacral division
Cervical ganglia: what it leads to?
eye, mucous membrane of nasal septum, submandibular/ sublingual gland/ Parotid gland, Heart and Lung
What does T5- T12 lead to?
- Stomach
- Spleen
- Adrenal Gland
- Kidney
- Small intestine
Inferior Mesenteric ganglia leads to?
- Large Intestine
2. Urinary Bladder
Cranial nerve 3 leads to?
eye
cranial nerve 7
lacrimal gland, submandibular/ sublingual glands
cranial nerve 9
Parotid gland
cranial nerve 10
- Heart and Lung
- Stomach
- spleen
- Adrenal gland
- Kidney
- Small intestine
- Large Intestine
Pelvic Splanchnic nerve (S2-S4)
- Small intestine and large intestine
- Rectum
- Urinary Bladder
what is the neurotransmitter associated with the sympathetic?
nor epinephrine
what is the neurotransmitter associated with parasympathetic?
Acetylcholine
What happens in the pre-synaptic cell bodies?
from T1-L2 it will go through four steps
- comes out of lateral horn of grey matter
- goes to ventral root
- passes through white ramus communicans
- Finish at the paravertebral ganglia
what are the four options that can happen after the presynaptic cells finish at the paravertebral ganglia
- Ascends and synapses which goes to the head
- synapse at the level of entry which happens with cardiopulmonary splanchnic nerves
- descend, then synapse which goes to lower limbs
- pass through without synapsing which goes through the abdominal pelvic splanchnic nerve
what does the sympathetic nervous system control?
dilation of pupils hair stands on end increase heart rate increase respiratory rate decrease GI tract vasoconstriction