THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The posterior (dorsal) cavity is a continuous cavity that includes the cranial cavity (brain) and the spinal cavity (spinal cord). The anterior (ventral) cavity includes the thoracic cavity and the abdominopelvic cavity .

Detailed explanation-2: -Body Cavities The two main cavities are called the ventral and dorsal cavities. The ventral is the larger cavity and is subdivided into two parts (thoracic and abdominopelvic cavities) by the diaphragm, a dome-shaped respiratory muscle.

Detailed explanation-3: -There are three planes of the body: Coronal (frontal) plane: separates the front (anterior) and back (posterior) of the body. Sagittal (longitudinal) plane: separates the left and right sides of the body. Transverse (axial) plane: separates the upper (superior) and lower (inferior) halves of the body.