Nervous System

Question 1

What type of neurological cell is the most abundant in the CNS?

A - ependymal cells
B - astrocytes
C - Schwann cells
D - microglia

Answer 1

B - astrocytes

Question 2

In what part of the brain is the motor map located?

A - frontal lobe of the cerebral hemispheres
B - reticular activating system
C - hypothalamus
D - parietal lobe of the cerebral hemispheres

Answer 2

A - frontal lobe of the cerebral hemispheres

Question 3

What functional classification do all unipolar neurons belong in?

A - multipolar
B - afferent
C - association
D - efferent

Answer 3

B - afferent

Question 4

What is the first event of an action potential?

A - sodium ions diffuse rapidly and the membrane repolarises
B - Potassium ions diffuse rapidly and the membrane depolarises
C - Sodium ions diffuse rapidly and the membrane depolarises
D - Potassium ions diffuse rapidly and the membrane depolarises

Answer 4

C - Sodium ions diffuse rapidly and the membrane depolarises

Question 5

Which cranial nerves control movement of the eyes?

A - oculomotor and trigeminal
B - oculomotor and facial
C - oculomotor, trochlear, and abducens
D - optic and oculomotor

Answer 5

C - oculomotor, trochlear, and abducens

Question 6

Which part of the CNS gives rise to sympathetic nerves?

A - brain stem and entire spinal cord
B - brain stem and sacral region of the spinal cord
C - thoracic and lumbar regions of the spinal cord
D - brain stem and cervical region of the spinal cord

Answer 6

C - thoracic and lumbar regions of the spinal cord