Brodmann’s Areas (BA) and their functions

Frontal Lobe

Q: What is BA 4?

A: Primary Motor Cortex – controls voluntary movement.

Frontal Lobe

Q: What is BA 6?

A: Premotor Cortex & Supplementary Motor Area – planning and sequencing motor movements.

Frontal Lobe

Q: What is BA 8?

A: Frontal Eye Fields – controls voluntary eye movements.

Frontal Lobe

Q: What are BA 44 & 45?

A: Broca’s Area (in the dominant hemisphere) – language production, speech planning.

Parietal Lobe

Q: What are BA 1, 2, and 3?

A: Primary Somatosensory Cortex – receives touch, pain, temperature, and proprioception.

Parietal Lobe

Q: What is BA 5 & 7?

A: Somatosensory Association Areas – interprets sensory input (shape, size, texture).

Parietal Lobe

Q: What is BA 39?

A: Angular Gyrus – reading, writing, number processing, language comprehension.

Parietal Lobe

Q: What is BA 40?

A: Supramarginal Gyrus – phonological processing, integrating sensory info for language.

Temporal Lobe

Q: What is BA 22?

A: Wernicke’s Area (dominant hemisphere) – comprehension of spoken language.

Temporal Lobe

Q: What are BA 41 & 42?

A: Primary Auditory Cortex – processing sound information.

Temporal Lobe

Q: What is BA 21?

A: Middle Temporal Gyrus – language, semantic memory, visual perception.

Occipital Lobe

Q: What is BA 17?

A: Primary Visual Cortex – initial processing of visual input.

Occipital Lobe

Q: What are BA 18 & 19?

A: Visual Association Areas – interpret shape, color, motion, and complex visual processing.

Other Key Areas

Q: What is BA 10?

A: Prefrontal Cortex – executive functions (planning, decision-making, social behavior).

Other Key Areas

Q: What is BA 11?

A: Orbitofrontal Cortex – emotional regulation, decision-making.

Other Key Areas

Q: What is BA 24 & 32?

A: Cingulate Cortex – emotion, learning, memory.

Other Key Areas

Q: What is BA 37?

A: Fusiform Gyrus – recognition of faces and objects.