Duplicate of Module 3 Practice Quiz

The term axonal transport refers to

Glucagon alone increases blood sugar to 100 mg/ml, adrenaline to 50 mg/ml, in combination to 180 mg/ml. Hormones are

Inhibitory postsynaptic potentials (IPSPs )

What sort of channels give rise to action potentials?

If K⁺ was the only ion that played a role in the formation of the RMP and cells were permeable to K⁺ the RMP would be...

A neuron has a RMP of -70mV, and it becomes hyperpolarised, the membrane potential is likely to be.....and.........

What causes repolarisation ?

Which endocrine organs releases catecholamines upon SNS stimulation.

What causes depolarisation ?

When more action potentials arrive at the axon terminal, how are neurotransmitters affected?

An agent that is introduced to bind to cell receptors and elicit a response (i.e. to activate receptors) is a/an

Where would we find chemically gated channels?

What is the name of the equation that can be used to determine the equilibrium potential for a particular ion?

Tetrodotoxin blocks voltage-gated sodium channels. What effect does this substance have on the function of neurons?

What fact about cells means that the RMP is much close to the E_k than the E_Na?

The RMP most closely reflects the equilibrium potential of ………….., meaning that …………..?

What does RMP stand for? 

The initial rising section of a graph of an action potential is called......

Which of the following does NOT influence the time necessary for a nerve impulse to be conveyed by a particular neuron?

Where would we find voltage gated channels?

Which of the following is correct with regards to the internal charge of a cell

What is plotted on the X axis of a plot/graph of an AP?

If Na⁺ was the only ion that played a role in the formation of the RMP and cells were permeable to Na⁺ the RMP would be?

What does AP stand for?

A neuronal circuit where a large number of presynaptic neurons provide input to one postsynaptic neuron is called

What sort of channels give rise to graded potentials?

If a stimulus to a nerve fails to reach threshold…..

The value of the RMP is...........

RMP stands for ........

An external agent that is introduced into the body and binds to a cell receptor to prevent it from responding is a/an

The multiple thin, branched structures on a neuron whose main function is to receive incoming signals are the

The most important ion in the formation of the resting membrane potential is .......

The 2 most important ions in the formation of the RMP are.....

Which hormone would bind to receptors in the cell or in the nuclei of a cell to affect DNA expression?

The second phase (falling part) of a graph of an action potential is called......