Acoelomates, pseudocoelomates and coelomates
The body has four major cavities: cranial cavity (contains the brain), thoracic cavity (contains the heart and lungs), abdominal cavity (contains the stomach and intestines), and pelvic cavity (contains the reproductive organs and bladder).
Pisces or fish have true internal body cavity.
A cavity that houses body organs is called a body cavity. The main body cavities are the thoracic cavity, abdominal cavity, and pelvic cavity, which contain organs such as the heart, lungs, stomach, and intestines.
The abdominal cavity contains major body organs such as the stomach, liver, intestines, and kidneys. This cavity is lined with a membrane called the peritoneum and is filled with a fluid called peritoneal fluid to help protect and cushion the organs.
The three serous-lined cavities in the body are the pleural cavities surrounding the lungs, the pericardial cavity surrounding the heart, and the peritoneal cavity surrounding the abdominal organs.
The oral cavity
the ventral cavity
The other major body cavity (besides the abdomen) is the chest.
The body has four major cavities: cranial cavity (contains the brain), thoracic cavity (contains the heart and lungs), abdominal cavity (contains the stomach and intestines), and pelvic cavity (contains the reproductive organs and bladder).
The Thoracic cavity (above the diaphragm) & the Abdominal cavity (below).
The duodenum is located in the abdominal cavity, which is the largest body cavity in humans and houses many of the major organs of the digestive and reproductive systems.
The Thoracic cavity (above the diaphragm) & the Abdominal cavity (below).
The major cavities of the human body are the cranial cavity (housing the brain), thoracic cavity (housing the heart and lungs), abdominal cavity (housing the digestive organs), and pelvic cavity (housing the reproductive organs). These cavities are lined with protective membranes and contain various organs that perform specific functions.
The two principal body cavities are the dorsal cavity, which includes the cranial and vertebral cavities, and the ventral cavity, which includes the thoracic and abdominopelvic cavities. These cavities protect and house internal organs and structures within the body.
The brain and the spinal cavity are located in the dorsal body cavity.
The diaphragm divides the body into two main cavities: the thoracic cavity above the diaphragm, which contains the heart and lungs, and the abdominal cavity below the diaphragm, which houses the digestive organs such as the stomach, liver, and intestines.
The mediastinum is located in the subdivision of the ventral body cavity known as the thoracic cavity. It is situated between the two pleural cavities and contains vital structures such as the heart, major blood vessels, esophagus, and trachea.