Which part of the body is enclosed in the cranial cavity?

The brain is housed within the cranial cavity, which is the space formed inside the skull. This cavity is specifically designed to protect the brain from external injury and support its functions. The cranial cavity is part of the central nervous system and plays a crucial role in maintaining the brain's environment, including the presence of cerebrospinal fluid that cushions and nourishes the brain.

In contrast, the lungs, heart, and kidneys are located in different cavities of the body; the lungs reside in the thoracic cavity, the heart is also situated in the thoracic cavity within the pericardial sac, and the kidneys are found in the abdominal cavity. Each of these organs has its designated space that supports not only their physical structure but also their functional requirements. The distinction in location emphasizes the organization of the human body into compartments accommodating various physiological functions.