2 - Role of the CNS Flashcards
1
Q
Neuronal function (4 stages)
A
- neurotransmitters act on receptors in dendritic spines
2.depolarisation
3.action potential generation and propagation
4.neurotransmitter release (sends signals to neurons, glands, muscle)
2
Q
Neurotransmitters of the CNS
A
glutamate, GABA, serotonin, dopamine, noradrenaline.
3
Q
Neurotransmitters PNS
A
noradrenaline, ACh (acetylcholine)
4
Q
What receptors does ACh bind to?
A
muscarinic receptors
5
Q
What receptors do NE/NA bind to?
A
adrenoceptors (adrenergic receptors)
6
Q
Adrenoceptors found in vascular smooth muscle cells
A
a1
7
Q
Inotropy
A
force of contraction
8
Q
Chronotropy
A
rate of contraction
9
Q
Dromotropy
A
rate of electrical conduction
10
Q
A
