Understand the concept of body cavities: Body cavities are spaces within the body that contain and protect internal organs. They are divided into two main categories: the dorsal body cavity and the ventral body cavity.
Identify the dorsal body cavity: The dorsal body cavity is located along the posterior (back) side of the body and is subdivided into the cranial cavity and the vertebral cavity.
Define the cranial cavity: The cranial cavity is the space within the skull that houses the brain. It is part of the dorsal body cavity.
Differentiate between the dorsal and ventral body cavities: The ventral body cavity is located on the anterior (front) side of the body and includes the thoracic and abdominopelvic cavities, which are not related to the cranial cavity.
Conclude that the cranial cavity is part of the dorsal body cavity, as it is located in the posterior part of the body and contains the brain.