Chapter 10 Altered Neural Function

Question 1

Neurons that carry sensory information to distant parts of the brain and spinal cord are called:
a. efferent neurons.
b. afferent neurons.
c. interneurons.
d. extraneurons.

Answer 1

b. afferent neurons

Question 2

Depolarization involves:
a. the rapid movement of sodium into the cell.
b. the movement of potassium ions out of the cell.
c. movement of potassium ions into the cell.
d. the absence of electrical activity.

Answer 2

a. the rapid movement of sodium into the cell.

Question 3

The lobe of the brain primarily involved in functions related to vision is the:
a. frontal lobe.
b. parietal lobe.
c. temporal lobe.
d. occipital lobe.

Answer 3

d. occipital lobe.

Question 4

Which of the following areas of the spinal cord contains 12 segments?
a. Cervical
b. Thoracic
c. Sacral
d. Lumbar

Answer 4

b. Thoracic

Question 5

Which cell type has the most potential for regeneration after injury?
a. Astrocyte
b. Peripheral axon
c. Neuroglia
d. Oligodendrocytes

Answer 5

b. Peripheral axon

Question 6

Coup–contrecoup occurs due to which type of injury mechanism?
a. Traumatic injury
b. Pressure injury
c. Excitation injury
d. Ischemic injury

Answer 6

a. Traumatic injury

Question 7

Neurogenic shock is due to altered transmission in which conduction system?
a. Sympathetic
b. Parasympathetic
c. Somatic
d. Peripheral

Answer 7

a. Sympathetic

Question 8

Seizure disorders are associated with which type of injury?
a. Traumatic injury
b. Pressure injury
c. Excitation injury
d. Ischemic injury

Answer 8

c. Excitation injury

Question 9

Which type of spinal cord injury is associated with the clinical manifestation of ipsilateral loss of motor and sensory function?
a. Anterior cord syndrome
b. Central cord syndrome
c. Brown-Séquard syndrome
d. Complete cord transection

Answer 9

c. Brown-Séquard syndrome

Question 10

Which type of neuron synthesizes and secretes norepinephrine as the primary neurotransmitter?
a. Serotonergic
b. Cholinergic
c. Nicotinic
d. Adrenergic

Answer 10

d. Adrenergic

Question 11

Parkinson disease is characterized by:
a. neurofibrillary tangles.
b. amyloid plaque.
c. Lewy bodies.
d. tau.

Answer 11

c. Lewy bodies

Question 12

Which one of the following neurotransmitters is deficient in Parkinson disease?
a. Dopamine
b. Serotonin
c. Norepinephrine
d. Acetylcholine

Answer 12

a. Dopamine