MCQ – 95070

Which of the following labels in this basal ganglia image is incorrect?

Correct Answer � D Explanation

The image provided is a cross-sectional view of the basal ganglia showing key components, including the caudate nucleus, putamen, globus pallidus, and related structures.

Structure Identification:

Option A: Caudate nucleus

1. • Correctly labeled.
   • The caudate is a C-shaped structure adjacent to the lateral ventricles and plays a role in motor control and learning.

Option B: Globus pallidus

1. • Correctly labeled.
   • Located medial to the putamen, it has an internal and external segment involved in regulating voluntary movement.

Option C: Putamen

1. • Correctly labeled.
   • Lies lateral to the globus pallidus and is part of the striatum, contributing to motor control.

Option D: External capsule (Incorrect)

1. • The label D in this image points to a region that is more consistent with the internal capsule, not the external capsule.
   • The external capsule lies lateral to the putamen and separates it from the claustrum.