Shared Flashcard Set

Details

Cells Test 2: Neuron Function
Neuron Function
19
Biology
Professional
11/03/2007

Additional Biology Flashcards

 


 

Cards

Term
In depolarization ____ is let in.
Definition
Na
Term
At the peak of the action potential _____ gates open as _____ channels are deactivated.
Definition

K -Potassium...K my ass. 

Na-Sodium 

Term
When an excitatory synapse receieves excitatory neurotransmitter, it gates open and allow ____ .
Definition
Na ....Sodium
Term
When an inhibatory synapse recieves an inhibitory neurotransmitter, it opens and allows ____ in.
Definition
Cl-
Term
What are the chief EXCITORY neurotransmitter recepotors?
Definition

acetylcholine and

glutamate 

Term
A change of ____mV equals depolarization.
Definition
+35mV
Term
A change of ____mV equals hyperpolarization.
Definition
-80mV
Term
The initial stimulus is due to Na leaking through ____ gated channels.
Definition
ligand
Term
During REPOLARIZATION ___ voltage gated channels close; therefore ___ voltage gated channels open, excess loss of ___ causes ____.
Definition

Na

K

K

HYPERPOLARIZATION 

Term
Resting potential is reestablished by what?
Definition
NA/K ATPase Pump
Term
The axoplasmic transport is mediated by what?
Definition
MOTOR PROTIENS
Term
The ____ transport is towards the synapse. What is the motor molecule responsible for this?
Definition

anterograde

KINESIN 

Term
The ___ transport is towards the cell body.  IT's fuel is ____.
Definition

Retrograde

DYNEIN 

Term
What are the junctions that connect at electrical synapses?
Definition
GAP
Term
A ____ neurotransmitter DEPOLARIZES the membrane.
Definition
EXCITATORY
Term
A ___ neurotransmitter makes the membrane harder to depolarize, and is only found in SMOOTH M.
Definition
INHIBATORY
Term
What are two examples of inhibatory neurotransmitters?
Definition

GABA

Glycine 

Term
Which is ligand gated, excitatory or inhibitory nuerotransmitters?
Definition
INHIBATORY
Supporting users have an ad free experience!