Question 1

Inhibition of acetylcholine esterase (AChE)results in:

Accepted Answer

A)  blockade of postsynaptic ACh receptors. 
B)  increased degradation of ACh. 
C)  decreased degradation of ACh. 
D)  decreased synthesis of ACh.

Question 2

The conduction velocity of two neurons was compared.The action potential was conducted much faster in Neuron A than in Neuron B.These data suggest that:

Accepted Answer

A)  Neuron A is shorter than Neuron B. 
B)  Neuron B must possess a myelin sheath. 
C)  Neuron B is found in the spinal cord. 
D)  Neuron A possesses a myelin sheath.

Question 3

The D1 receptor family includes the _____ receptor subtype.

Accepted Answer

A)  D2A 
B)  D3 
C)  D4 
D)  D5

Question 4

The brainstem consists of the following nuclei EXCEPT the:

Accepted Answer

A)  midbrain. 
B)  cerebellum. 
C)  pons. 
D)  medulla.

Question 5

The neurotransmitter thought to be involved in a variety of processes including sleep,sex,affective disorders,and pain is:

Accepted Answer

A)  ACh. 
B)  DA. 
C)  5-HT. 
D)  NE.

Question 6

Charlena has developed Alzheimers disease; current research suggests that she would benefit from drugs that activate the ______ muscarinic receptor.

Accepted Answer

A)  M2 
B)  M3 
C)  M4 
D)  N1

Question 7

The diencephalon includes all but the following:

Accepted Answer

A)  hypothalamus. 
B)  pituitary gland. 
C)  subthalamus. 
D)  cerebrum.

Question 8

Inhibition of acetylcholine esterase (AChE)results in:

Accepted Answer

A)  blockade of postsynaptic ACh receptors. 
B)  increased degradation of ACh. 
C)  decreased synthesis of ACh. 
D)  increased levels of ACh.

Question 9

Autoreceptors:

Accepted Answer

A)  enhance synthesis and release of neurotransmitter. 
B)  reduce the synthesis and additional release of neurotransmitter. 
C)  reduce binding at the postsynaptic receptor and produce inhibition at the synapse. 
D)  augment synaptic transmission.

Question 10

Once a neuron in the brain dies,it is not replaced.

Accepted Answer

A) True 
 B)False

Question 11

The _____ is part of the limbic system and contains dopamine.

Accepted Answer

A)  tectum 
B)  tegmentum 
C)  substantia nigra 
D)  ventral tegmental area

Question 12

The majority of the neurotransmitter acetylcholine (ACh)is metabolized in the synaptic cleft.

Accepted Answer