Free APMLE Part 1 Practice Questions
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- Question 1Lower Extremity Anatomymedium
What is the function of the structures in the obturator canal?
- A..Allows for the passage of lymphatic vessels
- B..Provides passage for the obturator nerve and vessels to the medial compartment of the thigh
- C..Connects the pelvis to the lumbar spine
- D..Supports the pelvic floor muscles
- E..Provides passage for the sciatic nerve
Show answer & explanation
Correct answer: B.. Provides passage for the obturator nerve and vessels to the medial compartment of the thigh
A..Lymphatic vessels do traverse the pelvis, but the obturator canal is specifically for the obturator nerve and vessels, not lymphatics.
B..The obturator canal transmits the obturator nerve, artery, and vein from the pelvis into the medial compartment of the thigh, which contains the adductor muscles. [Source: StatPearls (NCBI Bookshelf), Anatomy, Abdomen and Pelvis, Obturator Nerve - https://www.ncbi.nlm.nih.gov/books/NBK551640/]
C..The obturator canal does not connect the pelvis to the lumbar spine; the structures and connections involved are completely different.
D..The pelvic floor muscles are supported by other structures; the obturator canal is not involved in this function.
E..The sciatic nerve passes through the greater sciatic foramen, not the obturator canal, which primarily transmits the obturator nerve.
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