BCSE Anatomy 4

Question 1

Which ligament of the knee prevents anterior displacement of the tibia on the femur?

Accepted Answer

Anterior cruciate ligament

Answer

The anterior cruciate ligament (ACL) prevents anterior translation of the tibia relative to the femur, tested by the anterior drawer test.

Question 2

The thoracic duct drains into the venous system at which location?

Accepted Answer

Left subclavian–jugular junction

Answer

The thoracic duct empties into the junction of the left subclavian vein and the left internal jugular vein.

Question 3

Which muscle is the primary internal rotator of the hip?

Accepted Answer

Gluteus medius (anterior fibers)

Answer

The anterior fibers of the gluteus medius are the primary internal rotators of the hip; the posterior fibers externally rotate.

Question 4

The Wrist drop seen after a Saturday night palsy is caused by injury to which nerve?

Accepted Answer

Radial nerve in the axilla

Answer

Saturday night palsy compresses the radial nerve in the axilla (e.g., against a chair back), paralyzing wrist and finger extensors and causing wrist drop.

Question 5

Which foramen transmits the facial nerve (CN VII) out of the skull?

Accepted Answer

Stylomastoid foramen

Answer

The facial nerve exits the skull via the stylomastoid foramen before entering the parotid gland and branching into its terminal divisions.

BCSE - Basic and Clinical Sciences Examination Practice Test

BCSE - Basic and Clinical Sciences Examination Practice Test

BCSE Anatomy 4