The internal capsule posterior limb transmits all of the following EXCEPT:

• A Corticospinal fibers to the lower limb
• B Thalamocortical sensory radiations (somatosensory)
• C Corticobulbar fibers to cranial nerve nuclei
• D Frontothalamic fibers for prefrontal projections ✓

Explanation

The posterior limb of the internal capsule contains corticospinal fibers (lower limb fibers most posteriorly), thalamocortical sensory radiations, and corticorubral/corticoreticular fibers. Corticobulbar fibers travel in the genu of the internal capsule. Frontothalamic (prefrontal) projections travel primarily through the anterior limb of the internal capsule, which connects the prefrontal cortex with the mediodorsal thalamus.

Reference: BD Chaurasia's Human Anatomy, 8th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.