NPTE-PTA Neuromuscular & Nervous System 3

Question 1

Proprioceptive neuromuscular facilitation (PNF) techniques are based on which principle?

Accepted Answer

Sherrington's law of successive induction

Answer

PNF is based on Sherrington's neurophysiological principles including successive induction and reciprocal inhibition.

Question 2

Which balance system is most relied upon when standing on an unstable surface with eyes closed?

Accepted Answer

Vestibular system

Answer

When both visual and somatosensory inputs are reduced or unreliable, the vestibular system becomes the primary balance reference.

Question 3

A patient with multiple sclerosis has fatigue that worsens with increased body temperature. This phenomenon is called:

Accepted Answer

Uhthoff's phenomenon

Answer

Uhthoff's phenomenon describes the temporary worsening of MS symptoms with increased body temperature.

Question 4

In a patient with a lower motor neuron lesion, which finding is expected?

Accepted Answer

Flaccid paralysis

Answer

Lower motor neuron lesions cause flaccid paralysis, hyporeflexia, and muscle atrophy due to loss of direct muscle innervation.

Question 5

The two-point discrimination test assesses which sensory modality?

Accepted Answer

Fine touch and tactile discrimination

Answer

Two-point discrimination tests the ability to detect two distinct tactile points, assessing the density of cutaneous mechanoreceptors.

NPTE-PTA Test Practice Test