Intro to Nervous system Flashcards Preview

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Flashcards in Intro to Nervous system Deck (28):
1

What does the axon carry

Electrical signals

2

What is released from presynaptic terminals

Neurotrasmitters

3

What neurotransmitter is exclusively excitatory

Glutamate

4

What neurotransmitter is inhibitory

GABA

5

What neurotransmitter is both

Acetylcholine

6

Indirect neurotransmitters act through

intracellular second messengers. Usually takes longer and lasts longer

7

What are examples of voltage gated chanels

Voltage gated Na+ channels; lidocaine

8

Wha are examples of ligand gated channel

Glutamate (AMPA)
Nicotinic ACh receptors

9

What is Metabotropric

they are not directly linked to ion channels

10

What is ionotropic

Action is immediate and brief

11

What is an autoreceptor

receptor on an axon terminal through which the neurons own NT can influence the function the the terminal.
Ex; D2 receptor

12

What is a heteroreceptor

receptors on an axon terminal through which neurotransmitters from other neuronal types can influence the function of the terminal

13

What are three examples of catecholamines

Dopamine
Norepinephrine
Epinephrine

14

Cathecolamines are related to

Drugs of abuse
psychiatric disorder
Autonomics

15

what is DOPA

Dihydroxyphenalanine

16

What converts Tyrosine to DOPA

Tyrosine hydroxylase

17

What converts DOPA to DA

Aromatic amino acid decarboxylase

18

What is the transporter on vesicles

VMAT; Vesicular monoamine transporter

19

what is MAO

Monoamine Oxidase; breaks down Dopamine (DA)

20

What is DBH

Dopamine Beta Hydroxylase

21

What converts DA to NE

DBH

22

alpha 2 receptor is pre or post

Presynaptic

23

What are two post synaptic receptors

alpha
Beta

24

What about serotonin

Not a catecholamine
Sleep
Depression
Migrane headaches

25

Serotonin is the same thing as

5-hydroxytryptamine

26

What is the precursor to serotonin

tryptophan

27

What is another name for a ligand-gated receptor

Ionotropic

28

What type of receptor is not directly linked to ion channel

Metabotropic