Biology Nervous Coordination ETEA 2023 Retake
PMDC Verified Question 32 of 86
A shallow groove in cerebrum is called and deep groove is called
A
Sulcus fissure
B
Fissure sulcus
C
Gyrus fissure
D
Fissure gyrus
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Sulcus fissure
Concept:

The cerebral cortex is folded to maximize surface area within the skull, creating a distinct topographical map of ridges and grooves.

Solution:

  • A shallow depression or groove on the cortical surface is anatomically termed a sulcus.


  • A much deeper, more pronounced groove (such as the one dividing the two hemispheres) is called a fissure.


Why other options are incorrect:

  • Gyrus: Refers to the raised ridge or "bump" on the brain, not a groove. Therefore, any option containing gyrus is incorrect.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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