ACE Personal Trainer Practice Exam

Which plane divides the body into left and right halves?

1. Frontal Plane

2. Transverse Plane

3. Sagittal Plane

4. Coronal Plane

The correct answer is: Sagittal Plane

The plane that divides the body into left and right halves is known as the sagittal plane. This anatomical plane runs vertically through the body, allowing for lateral movements and separation of the body's symmetrical halves. In the context of anatomy, the sagittal plane is crucial for understanding movements such as flexion and extension, which occur in this plane. It is particularly important in exercises and movements that involve bending or straightening, as these actions typically happen along this plane. The other planes have different functions: the frontal plane divides the body into anterior (front) and posterior (back) sections, while the transverse plane separates the body into superior (upper) and inferior (lower) parts. The coronal plane is another term used synonymously with the frontal plane. Recognizing these distinctions is essential for understanding human movement and anatomy in physical training and rehabilitation contexts.