Final answer:
An example of a dorsal cavity is the spinal cavity, which along with the cranial cavity, comprises the dorsal body cavities lying at the posterior part of the body.
Step-by-step explanation:
An example of a dorsal cavity is the c. Spinal cavity. The dorsal cavity is located at the posterior, or back, of the body and includes two main sub-cavities: the cranial cavity and the spinal cavity. This is in contrast to the ventral cavity which is subdivided into the thoracic cavity and abdominopelvic cavity, with the latter further divided into the abdominal cavity and the pelvic cavity.