Body Cavities
Our bodies are divided up into many different cavities. The two major cavities are the dorsal and ventral cavities.
Dorsal Cavity- The dorsal cavity is used to protect the nervous system. The dorsal cavity is slit into two different cavities.
Cranial Cavity- The cranial cavity lies within the dorsal cavity and encases the brain.
Vertebral Cavity- The vertebral cavity is also within the dorsal cavity and it surrounds the spinal cord.
Ventral Cavity- The ventral cavity acts as the house for the internal organs. It is split into two different subdivisions: The thoracic cavity and the abdominopelvic cavity.
Thoracic Cavity- The thoracic cavity is divided into two pleural cavities, the mediastinum, and the pericardial cavity.
~Pleural Cavities- Each of the pleural cavities contain a lung.
~The Mediastinum- The mediastinum surrounds the pericardial cavity and the rest or the organs in the thoracic cavity.
~Pericardial Cavity- The pericardial cavity encases the heart.
Abdominopelvic Cavity- The abdominopelvic cavity is inferior to the thoracic cavity. They are separated by the diaphragm. The abdominopelvic cavity is also made up of subdivisions.
~Abdominal Cavity- The abdominal cavity is superior to the pelvic cavity and contains the stomach, intestines, spleen, liver, and some other organs.
~Pelvic Cavity- The pelvic cavity is within the pelvis and includes the bladder, reproductive organs, and the rectum.
Other Cavities
Oral Cavity- The oral cavity contains the teeth and the tongue.
Nasal Cavity- The nasal cavity is located in the posterior of the nose and are divided into right and left portions.
Orbital Cavity- The orbital cavity acts as the house of the eyes and contains the associated skeletal muscles and nerves.
Middle Ear Cavities- The middle ear cavities contain the ossicles (or small bones) that transmit sound vibrations.
Synovial- The synovial contains joint cavities.
Cavity Membranes
There are three different ventral body cavity membranes. Parietal serosa is the membrane that kines internal body walls. Visceral serosa is used to cover the internal organs. Serous fluid separates the two serosae.
Abdominopelvic Regions
Our bodies are divided into 9 different abdominopelvic regions:
Our bodies are divided up into many different cavities. The two major cavities are the dorsal and ventral cavities.
Dorsal Cavity- The dorsal cavity is used to protect the nervous system. The dorsal cavity is slit into two different cavities.
Cranial Cavity- The cranial cavity lies within the dorsal cavity and encases the brain.
Ventral Cavity- The ventral cavity acts as the house for the internal organs. It is split into two different subdivisions: The thoracic cavity and the abdominopelvic cavity.
Thoracic Cavity- The thoracic cavity is divided into two pleural cavities, the mediastinum, and the pericardial cavity.
~Pleural Cavities- Each of the pleural cavities contain a lung.
~The Mediastinum- The mediastinum surrounds the pericardial cavity and the rest or the organs in the thoracic cavity.
~Pericardial Cavity- The pericardial cavity encases the heart.
Abdominopelvic Cavity- The abdominopelvic cavity is inferior to the thoracic cavity. They are separated by the diaphragm. The abdominopelvic cavity is also made up of subdivisions.
~Abdominal Cavity- The abdominal cavity is superior to the pelvic cavity and contains the stomach, intestines, spleen, liver, and some other organs.
~Pelvic Cavity- The pelvic cavity is within the pelvis and includes the bladder, reproductive organs, and the rectum.
Other Cavities
Oral Cavity- The oral cavity contains the teeth and the tongue.
Nasal Cavity- The nasal cavity is located in the posterior of the nose and are divided into right and left portions.
Orbital Cavity- The orbital cavity acts as the house of the eyes and contains the associated skeletal muscles and nerves.
Middle Ear Cavities- The middle ear cavities contain the ossicles (or small bones) that transmit sound vibrations.
Synovial- The synovial contains joint cavities.
Cavity Membranes
There are three different ventral body cavity membranes. Parietal serosa is the membrane that kines internal body walls. Visceral serosa is used to cover the internal organs. Serous fluid separates the two serosae.
Abdominopelvic Regions
Our bodies are divided into 9 different abdominopelvic regions:
- Umbilical region
- Epigastric region
- Hypogastric region
- Right and left iliac (inguinal) regions
- Right and left lumbar regions
- Right and left hypochondriac regions
Abdominopelvic Quadrants
Our bodies are divided into 4 abdominopelvic quadrants:
- Right upper quadrant
- Left upper quadrant
- Right lower quadrant
- Left lower quadrant
P.S.- "V" <----this is not a "y" is is a capital "v"
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