If a plane cut separates the brain into left and right halves, which plane is used?

If a plane cut separates the brain into left and right halves, which plane is used?

• A. Sagittal plane
• B. Coronal plane
• C. Horizontal plane
• D. Transverse plane

Answer: (A)

Planes of section in neuroanatomy include the sagittal plane, which runs from front to back and divides the brain into left and right portions. When the cut goes exactly down the middle, it’s the midsagittal (median) plane, yielding equal left and right halves. This orientation is what distinguishes left-right separation. In contrast, a coronal plane slices the brain into front and back sections, while a horizontal (transverse) plane splits it into top and bottom.

Planes of section in neuroanatomy include the sagittal plane, which runs from front to back and divides the brain into left and right portions. When the cut goes exactly down the middle, it’s the midsagittal (median) plane, yielding equal left and right halves. This orientation is what distinguishes left-right separation. In contrast, a coronal plane slices the brain into front and back sections, while a horizontal (transverse) plane splits it into top and bottom.