Chap. 3 review questions

Question 1

The role of neurotransmitters in the CNS is to function as:
A - A communication medium
B - A gatekeeper for transmissions
C - A building block for amino acids
D - An agent to break down enzymes

Answer 1

A - A communication medium

Neurotransmitters are responsible for the communication of information between neurons.

Question 2

Serotonin is produced in which of the following locations:
A - Locus ceruleus
B - Nucleus basalis
C - Raphe nuclei
D - Substantia nigra

Answer 2

C - Raphe nuclei

Dopamine is produced in the substantial nigra, and norepinephrine is produced in the locus ceruleus.

Question 3

A client presents with complaints of changes in appetite, feeling fatigued, problems with sleep-rest cycle, and changes in libido.  The neuroanatomical area of the brain responsible for the normal regulation of these functions is the :
A - Thalamus
B - Hypothalamus
C - Limbic system
D - Hippocampus

Answer 3

B - Hypothalamus
The hypothalamus is the brain’s alarm system and plays a key role in regulatory functions such as thirst, hunger, water balance, circadian rhythms.

Question 4

In considering whether or not to order an MRI for a client with suspected psychiatric disorders, which of the following would be a contraindication to this diagnostic test:
A - Prosthetic limb
B - History of head trauma
C - Pacemaker
D - Pregnancy

Answer 4

C - Pacemaker

MRIs are not to be used for individuals with pacemakers or implants of ferromagnetic metals.