Which of the following is not one of the three major planes of dissection?

The correct answer is that "Frontal" is not one of the three major planes of dissection recognized in anatomy. The three primary anatomical planes are the coronal, sagittal, and transverse planes.

The coronal plane divides the body into anterior (front) and posterior (back) sections. This plane is useful for understanding the arrangement of structures from a frontal perspective.

The sagittal plane divides the body into left and right parts, and it can be either a mid-sagittal (equal left and right parts) or para-sagittal (unequal parts), which is essential for understanding bilateral symmetry in anatomy.

The transverse plane, also known as the horizontal plane, divides the body into superior (upper) and inferior (lower) sections. This division is critical for cross-sectional imaging and understanding how structures relate to one another in a three-dimensional context.

While "frontal" is a term often used interchangeably with "coronal" in some contexts, it is not officially recognized as one of the three primary planes of dissection in anatomical terminology. Therefore, referring to the coronal plane is the more precise term used in anatomical studies, making "frontal" the appropriate choice for the answer.