Which term describes the imaginary line that divides the body into upper and lower portions?

The term that describes the imaginary line dividing the body into upper and lower portions is the transverse plane. This plane runs horizontally across the body, creating a division between the superior (upper) and inferior (lower) parts. It is essential in anatomy to understand this division for various applications, such as medical imaging and physical assessments, as it helps to establish clear reference points in the body.

While the coronal plane separates the body into anterior (front) and posterior (back) portions, and the sagittal plane divides it into left and right sides, the transverse plane specifically addresses the horizontal division, making it the correct term for this context. Understanding these planes is crucial for professionals in fields like massage therapy, as they facilitate effective communication about body orientation and positioning.