Flashcards in Session 8: Autonomic Nervous System Deck (15):
What does the ANS control?
What are the two anatomically defined defined divisions of the ANS?
How is the sympathetic nervous system described?
Fight or flight
How is the parasympathetic nervous system described?
Rest and digest
Which of the anatomical deviations of the brainstem and spinal chord are sympathetic?
Which of the anatomical deviations of the brainstem and spinal chord are parasympathetic?
What is the name of the nerve that is particularly important in regulating the heart?
Describe 3 features of parasympathetic nerves.
1. Long myelinated preganglion nerves
2. Short myelinated postganglion nerves
3. Ganglia located in innervated tissue
Describe 3 features of sympathetic nerves.
1. Short preganglion nerves
2. Long postganglion nerves
3. Ganglia located close to spinal chord
What type of receptor are nicotinic Ach receptors?
Ligand gated Ion channel
Name 2 specialised sympathetic post ganglion nerves that are cholinergic.
1. Sweat glands
2. Hair follicles
What are NANC?
Non-adrenergic, non-cholinergic transmitters
Give 3 examples of NANC transmitters.
Describe the hormonal aspect of the sympathetic nervous system.
The adrenal medulla produces adrenaline.