Autonomic nervous system Flashcards
What is the general overview of neurones in the ANS?
2 neurones in series. 1 cell body in the CNS and myelinated, 1 cell body in the PNS and not myelinated
What can the ANS be split into?
Sympathetic branch
Parasympatehtic branch
What is the sympathetic branch of the ANS responsible for?
Fight or Flight response in stress situation
What is the parasympathetic branch of the ANS respsonsible for?
Maintaining the Basal state
Which organ receives Sympathetic innervation only?
Sweat glands
What is the spinal outflow of the Sympathetic branch of the ANS?
Thoraco-Lumbar
In the Sympathetic branch of the ANS, what are the neurotransmitters?
Pre ganglionic - Cholinergic
Post ganglionic - Noradrenergic
What is the spinal outflow of the Parasympathetic branch of the ANS?
CranioSacral
In the Parasympathetic branch of the ANS, what are the neurotransmitters?
Pre ganglionic - Cholinergic
Post ganglionic - Cholinergic
What 2 mechanisms are exceptions to the Sympathetic innervation ‘rules’?
Sweating and Ejaculation are Cholinergic even though they are Sympathetic ANS