Quiz
Physiology III: Excitatory and Inhibitory Neurotransmission in the CNS
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Questions in this quiz (20)
1There is a higher concentration of [blank_start]Sodium[blank_end] on the outside of the cell and [blank_start]potassium[blank_end] inside the cell
- Asodium
- Bpotassium
- Cpotassium
- Dsodium
2The is a significantly [blank_start]higher[blank_end] concentration of Calcium extracellularly.
- Ahigher
- Blower
3Na flows inwards, causing [blank_start]depolarisation[blank_end] which is [blank_start]excitatory[blank_end]
Ca flows inwards, causing [blank_start]depolarisation[blank_end] which is [blank_start]excitatory[blank_end]
Cl flows inwards, causing [blank_start]hyperpolarisation[blank_end] which is [blank_start]inhibitory[blank_end]
K flows outwards, causing [blank_start]hyperpolarisation[blank_end] which is [blank_start]inhibitory[blank_end]- Adepolarisation
- Bhyperpolarisation
- Cdepolarisation
- Dhyperpolarisation
- Ehyperpolarisation
- Fdepolarisation
- Ghyperpolarisation
- Hdepolarisation
- Iexcitatory
- Jinhibitory
- Kexcitatory
- Linhibitory
- Minhibitory
- Nexcitatory
- Oinhibitory
- Pexcitatory
4Based on the previous question, will a drug that acts as a Na channel antagonist be excitatory or inhibitory?
[blank_start]Inhibitory[blank_end]- AInhibitory
- BExcitatory
- CNeither
5Based on the previous question, will a drug that acts as a Potassium channel antagonist be excitatory or inhibitory?
[blank_start]Excitatory[blank_end]- AExcitatory
- BInhibitory
6Events at the Synapse are mostly mediated by means of ..
- ACalcium Channels
- BSodium Channels
- CPotassium Channels
- DChlorine Channels
7There are two types of receptors upon which neurotransmitters can act.
[blank_start]Ionotropic Receptor[blank_end]: Direct gating, whereby the receptor is an integral part of the channel it controls
[blank_start]Metabotropic Receptor[blank_end]: Indirect gating, whereby the receptor and the channel it controls are distinct from one another.- AIonotropic Receptor
- BMetabotropic Receptor
- CSynapotropic Receptor
8Label the receptor types shown in the diagram below.
- AIonotropic Receptors
- BSynapotropic Receptors
- CMetabotropic Receptors
9The major excitatory neurotransmitter is ...
- AGABA
- BGlutamate
- CGlycine
- DDopamine
10However, Glutamate can sometimes also elicit inhibitory effects via [blank_start]metabotropic[blank_end] glutamate receptors
- Ametabotropic
- Bionotropic
11Ionotropic Glutamate Receptors:
NMDA receptors mediate [blank_start]slow[blank_end] excitatory synaptic transmission in the CNS
Non-NMDA receptors mediate [blank_start]fast[blank_end] excitatory synaptic transmission in the CNS- Afast
- Bslow
- Cslow
- Dfast
12The major inhibitory neurotransmitter is ...
- AGlutamine
- BGABA
- CGlycine
- DDopamine
13As GABA is an inhibitory Neurotransmitter, it tends to mediate which of the following ions.
[blank_start]Potassium & Chlorine[blank_end]- APotassium & Chlorine
- BPotassium & Sodium
- CSodium & Chlorine
- DSodium & Calcium
14Ionotropic GABA receptors tend to mediate [blank_start]Chlorine channels[blank_end]
Metabotropic GABA receptors tend to mediate [blank_start]Potassium channels[blank_end]- AChlorine channels
- BPotassium channels
- CPotassium channels
- DChlorine channels
15[blank_start]Ionotropic[blank_end] Receptors are faster and act simply as 'on-off' switches for channels
- AIonotropic
- BMetabotropic
16[blank_start]Excitatory Post-Synaptic Potential (EPSP[blank_end]): Depolarising change in resting membrane potential caused by actions of neurotransmitters.
[blank_start]Inhibitory Post-Synaptic Potential (IPSP[blank_end]): Hyperpolarising change change in resting potential caused by actions of neurotransmitters.- AExcitatory Post-Synaptic Potential (EPSP
- BInhibitory Post-Synaptic Potential (IPSP
17A change in resting membrane potential caused by EPSP or IPSP that is not of sufficient magnitude to cross the threshold for an action potential is called ...
- AAn Almost There Potential
- BA Graded Potential
- CA Median Potential
- DA Charted Potential
18Which neurotransmitter are excitatory neurons most likely to release?
[blank_start]Glutamate[blank_end]- AGlutamate
19Neurotransmitters are released in discrete packages called [blank_start]quanta[blank_end]
- AQuanta
- BBundles
- CQuota
20Label the diagram below relating to cells of the cerebellum.
- AMossy Fibre
- BGranule Cell
- CStellate Cell
- DPurkinje Cell
- EBasket Cell
- FParallel Fibres
- GClimbing Fibre
Information
- Description
- Excitatory and Inhibitory Neurotransmission in the CNS given on 4/9/2018
- Author
- Matthew Coulson
- Language
- English
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- 551
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