PCE Clinical Knowledge and Theory 2

Question 1

Which dermatome corresponds to sensation over the lateral aspect of the foot and little toe?

Accepted Answer

S1

Answer

The S1 dermatome supplies the lateral foot, little toe, and posterior calf.

Question 2

A patient presents with a positive Thomas test. Which structure is most likely shortened?

Accepted Answer

Hip flexors (iliopsoas)

Answer

The Thomas test assesses iliopsoas (hip flexor) flexibility; a positive result indicates hip flexor tightness causing the tested hip to flex off the table.

Question 3

Which type of muscle fiber is primarily recruited during high-intensity, short-duration activities such as sprinting?

Accepted Answer

Type IIx (fast glycolytic)

Answer

Type IIx fibers have the highest contraction speed and rely on anaerobic glycolysis, making them dominant in maximal short-burst efforts.

Question 4

The resting membrane potential of a typical neuron is approximately:

Accepted Answer

-70 mV

Answer

The resting membrane potential of most neurons is approximately -70 mV, maintained mainly by the sodium-potassium ATPase pump.

Question 5

During which phase of gait does the gluteus medius primarily contract to prevent contralateral pelvic drop?

Accepted Answer

Mid-stance

Answer

Gluteus medius fires eccentrically during mid-stance to stabilize the pelvis and prevent a Trendelenburg drop on the opposite side.

(PCE) Physiotherapy Competency Exam Practice Test

(PCE) Physiotherapy Competency Exam Practice Test

PCE Clinical Knowledge and Theory 2