Autonomic Nervous System Flashcards
The autonomic nervous system is a division of the…
- Peripheral nervous system
- Efferent nervous system
Sympathetic nerves have…
- Thoracolumbar outflow
- Short preganglionic and long ganglionic fibres
Sympathetic ganglia are located in…
- Prevertebral ganglia
- Paravertebral ganglia
Cranial nerves that contain parasympathetic outflow include the…
- Oculomotor nerve
- Facial nerve
- Glossopharyngeal nerve
- Vagus nerve
In the sympathetic system the synapse between pre and post ganglionic cells are…
Cholinergic and nicotinic
In the parasympathetic system the synapses between pre and post ganglionic cells are…
Cholinergic and nicotinic
In the parasympathetic system the synapses between post ganglionic cells and their targets are…
Cholinergic and muscarinic
What do post ganglionic cell in the adrenal medulla release?
Adrenaline
What do post ganglionic cells in the adrenal medulla not have?
Axons
What system are the post ganglionic cells in the adrenal medulla part of?
Sympathetic system
What do the post ganglionic cells in the adrenal medulla contribute to?
Mass activation
Adrenaline and noradrenaline act on…
Adrenergic receptors
- Alpha receptors
- Beta receptors
Acetylcholine acts on…
Cholinergic receptors
- Nicotinic receptors
- Muscarinic receptors
In the eye activation of the sympathetic system causes?
- Contraction of the radial muscle of the iris
- Relaxation of the ciliary muscle surrounding the lens
Eye drops used to dilate the pupil of the eye may contain…
- A muscarinic antagonist
- An alpha1 agonist
In the heart, parasympathetic activation causes….
- Release of acetylcholine
- A decrease in heart rate
In blood vessels, activation of sympathetic nerves cause…
Vasoconstriction
In some blood vessels, activation of the sympathetic system causes vasodilation because….
They express Beta2 receptors
In the lung activation of the sympathetic system causes…
Relaxation of smooth muscle
What can autonomic neuropathy cause?
- Syncope
- Bladder problems
- Bowel problems
- ETC.
