Autonomic Nervous System Flashcards
What are the 2 main divisions of the nervous system?
Central nervous system
Peripheral nervous system
What are the 2 main divisions of the peripheral nervous system?
Afferent (sensory) nerves
Efferent (motor) nerves
What are the 2 divisions of the efferent (motor) nervous system?
Somatic (voluntary) nervous system
Autonomic (involuntary) nervous system
What are the 2 divisions of the autonomic (involuntary) nervous system?
Parasympathetic nervous system
Sympathetic nervous system
What areas of the spinal column do sympathetic nerves emerge from?
Throracolumbar outflow
For sympathetic nerves, how does the length of preganglionic and postganglionic fibres compare?
Short preganglionic and long postganglionic fibres
Where are sympathetic ganglia located?
Prevertebral ganglia
Paravertebral ganglia
In the sympathetic nervous system, the synapses between pre and post-ganglionic cells are what?
Cholinergic and nicotinic
In the parasympathetic nervous system, the synapses between pre and post-ganglionic cells are what?
Cholinergic and nicotinic
In the parasympathetic nervous system, the fibres between post-ganglionic cells and targets are what?
Cholinergic and muscarinic
What do post-ganglionic cells in the adrenal medulla release?
Adrenaline
What do post-ganglionic fibres in the adrenal medullar contribute to?
Mass activation, being part of the sympathetic nervous system and releasing adrenaline
What receptors do adrenaline and noradrenaline act on?
Adrenergic receptors
Alpha receptors
Beta receptors
What kinds of receptors does acetycholine act on?
Nicotinic and muscarinic receptors