Kahoot Neurophisiology 2

Question 1

Which ion(s) is/are normally associated with a hyperpolarization at the dendrite (IPSP)?

Answer 1

K+ and Cl-

Question 2

Where are ligand-gated ion channels normally located?

Answer 2

They CAN be in Dendrites, soma, axon terminal(tricked you there! but yes, they are THE MOST COMMON in the dendrites)

Question 3

Where are most voltage-gated Ca+ channels normally located?

Answer 3

Axon terminal - sono i capi squadra delle vescicles

Question 4

Temporal summation is the summing of graded potentials caused by input from one or multiple synapses?

Answer 4

Only one synapse

Question 5

Spatial summation is the summing of graded potentials caused by input from one or multiple synapses?

Answer 5

Multiple synapses

Question 6

What is the cause of the maximum for the firing rate of a neuron (~1000 per second)?

Answer 6

Absolute + relative refractory period duration

Question 7

Which process is directly blocked by botox?

Answer 7

Exocytosis at presynaptic membrane into synaptic cleft

Question 8

What the classic example of an endogenous ligand?

Answer 8

ACh, Acetyl Choline

Question 9

Is acetyl choline an excitatory or inhibitory neurotransmitter?

Answer 9

It depends :3

Question 10

When the number of receptors on the postsynaptic membrane increases, what does it mean for the neuronal reception of the signal?

Answer 10

The neuron becomes more sensitive.