Anatomy of the autonomic nervous system Flashcards
What does the ANS connect
The central nervous system and peripheral organs
How is the ANS a two neurone system
Has the sympathetic and parasympathetic nervous system
What is the main neurotransmitter involved in the ANS
Acetylcholine
What is the nerve connection in the parasympathetic nervous system
- Long lightly myelinated pre gang
- Ach
- Post ganglionic nerve
- Ach
Where does the parasympathetic nerve target
Salivary gland, GI tract, heart, acid secreting cells, digestive cells and the bladder
What is the nerve connection in the sympathetic nervous system towards the arteries, heart, tissues and liver
- Short lightly myelinated pre ganglionic nerve
- Ach
- Post ganglionic nerve
- Noradrenaline
What is the nerve connection in the sympathetic nervous system towards the sweat gland
- Short lightly myelinated pre ganglionic nerve
- Ach
- Post ganglionic nerve
- Ach
What is the nerve connection in the sympathetic nervous system towards the adrenal gland
Medium length lightly myelinated pre ganglionic nerve > Ach > Post ganglionic nerve > Ach
Where are parasympathetic nerves situated
At the top and bottom of the spine
Cranial nerve III connects to
The pupil, the oculomotor nerve
Cranial nerve VII connects to
The submaxillary, sublingual and lacrimal glands, the facial nerve
Cranial nerve IX connects to
The parotid glands that form saliva, the glossopharyngeal nerve
Cranial nerve X connects to
The heart, kidneys, bronchi and GI tract to colon, the vagus nerve
Sacral nerves connect to
The remainder of the GI tract, bladder and genitalia
Where are sympathetic nerves situated
The middle of the spine
