Question

A patient is admitted to the er with a deep penetrating wound to the buttocks. upon examination, the patient cannot flex their leg at the knee or move the foot at the ankle. which of the following nerves have been severed?

a. femoral n
b. obturator n.
c. sciatic n.
d. all of the listed nerves have been damaged

Answer 1

The inability to flex the leg at the knee and move the foot at the ankle following a deep penetrating wound to the buttocks suggests the sciatic nerve has been severed. so, option b is the correct answer.

Step-by-step explanation:

A patient admitted to the ER with a deep penetrating wound to the buttocks and exhibiting an inability to flex the leg at the knee and move the foot at the ankle likely has a damaged sciatic nerve. The sciatic nerve is a systemic nerve from the sacral plexus, which is a combination of the tibial and fibular nerves, and it extends across the hip joint and gluteal region into the upper posterior leg. This nerve controls the muscles of the back of the thigh, lower leg, and foot, so injury to this nerve could result in the loss of these functions.

The sciatic nerve is likely to have been severed.

Based on the information provided, it is likely that the sciatic nerve has been severed. The sciatic nerve is a systemic nerve from the sacral plexus that extends across the hip joint and gluteal region into the upper posterior leg.