The inability to move limbs in catatonic schizophrenia illustrates ______ symptoms of schizophrenia.

Which mechanism was not cited by the textbook as a factor in tolerance?

a. depletion of neurotransmitters b. prevention of drug getting through the blood brain barrier c. increase in drug metabolizing enzymes d. changes in neurotransmitter receptor sensitivity

The paralyzing effect of curare is caused by its ability to block the action of acetylcholine at neuron-muscle synapses

a. True b. False Indicate whether the statement is true or false