Body Cavaties

Protects the nervous system, and is divided into two subdivsions :
Cranial Cavity
Vetebral Cavity

within the skull and encloses the brain

Runs within the vetebral and incases the spinal cord

Houses the internal organs and is divided into two subdivsions:
Thoractic
Abdominopelvic

Houses a lung

Contains the perdicardial cavity and surrounds the thoracic organs

Encloses the heart

Seperated from superior thoractic cavity by dome-shaped diagram , composed of two different subdivsions
-abdominal Cavity
-Pelvic Cavity

Contains stomach ,intestines, spleen , liver and other organs.

Lies within the pelvis and contains the bladder , reproductive organs and rectum