enhancing pain sensitivity.

cell hyperpolarisation.

transmission of pain signals.

uterine contraction.

A low blood:gas coefficient tends to be associated with rapid induction but slow reversal.

A low blood:gas coefficient will generally promote rapid transfer across the blood-brain barrier.

A high oil:gas coefficient will usually be associated with lower potency.

A high oil:gas coefficient will generally promote rapid recovery and reversal.

increase at approximately the same time as improvements in mood are observed.

remain unchanged until improvements in mood are observed.

increase before any improvements in mood are observed.

decrease at approximately the same time as improvements in mood are observed.

levels of both monoamines and their receptors are too low.

monoamine levels are excessively high, and receptor levels are too low.

monoamine levels are too low, and receptor levels are excessively high.

levels of both monoamines and their receptors are too high.

an equal amount of time the animal spends in the closed arms and open arms.

a decrease in the amount of time the animal spends in the open arms.

an increase in the amount of time the animal spends in the open arms.

an increase in the amount of time the animal spends in the closed arms.

despair.

anxiety.

cognitive decline.

relaxation.

They decrease the inhibitory effects of cholinergics on dopamine signalling.

They restore the balance between dopamine signalling and unopposed cholinergic activity that occurs in Parkinson's disease.

Their action is largely restricted to the periphery.

They can be used to control the nausea associated with D2 receptor agonists used to treat Parkinson's.

The assertion and reason are true statements BUT the reason is not a correct explanation of the assertion.

The assertion and reason are true statements AND the reason is the correct explanation of the assertion.

BOTH assertion and reason are false statements.

The assertion is true BUT the reason is a false statement.