MBBS Anatomy

Question 1

Which nerve is most commonly injured in a midshaft fracture of the humerus?

Accepted Answer

Radial nerve

Answer

The radial nerve winds around the posterior aspect of the humerus in the spiral groove and is vulnerable to injury in midshaft humeral fractures.

Question 2

The anatomical snuffbox is bounded laterally by which tendons?

Accepted Answer

Abductor pollicis longus and extensor pollicis brevis

Answer

The lateral border of the anatomical snuffbox is formed by the tendons of abductor pollicis longus and extensor pollicis brevis.

Question 3

Which structure passes through the foramen ovale of the skull base?

Accepted Answer

CN V3 (mandibular nerve)

Answer

The mandibular division of the trigeminal nerve (CN V3) passes through the foramen ovale.

Question 4

The femoral triangle is bounded superiorly by which structure?

Accepted Answer

Inguinal ligament

Answer

The inguinal ligament forms the superior boundary of the femoral triangle.

Question 5

Which of the following is a content of the carotid sheath?

Accepted Answer

Internal jugular vein, common carotid artery, vagus nerve

Answer

The carotid sheath contains the common carotid artery, internal jugular vein, and vagus nerve (CN X).

MBBS - Bachelor of Medicine and Bachelor of Surgery Practice Test