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Anatomical Terminology (Cavities)
Covers naming the body cavities and indicating the important organs in each.
23
Anatomy
Undergraduate 2
01/07/2013

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Term
Cranial cavity
Definition
The brain is enclosed within the rigid skull. Continuous with the vertebral cavity.
Term
Vertebral (spianl) cavity
Definition
The delicate spinal cord is protected by the vertebral column. Continuous with the cranial cavity.
Term
Dorsal body cavity
Definition
Contains and is subdivided by the cranial and vertebral cavities.
Term
Thoracic cavity
Definition
Seperated from the ventral cavity by the diaphragm. The heart and lungs are within this cavity and protected by the rib cage.
Term
Abdominopelvic cavity
Definition
The cavity inferior to the diaphragm. Can be split into the superior abdominal cavity (stomach, intestines, liver, etc.) and the inferior pelvic cavity (enclosed by pelvis and containing the reproductive organs, bladder, and rectum).
Term
Ventral body cavity
Definition
Contains and is subdvivided by the thoracic cavity and abdominopelvic cavity.
Term
Serosa
Definition
A thin, double-layered membrane covering the walls and outer surfaces of the organs contained in the ventral body cavity.
Term
Parietal serosa
Definition
The membrane lining the cavity walls.
Term
Visceral serosa
Definition
The membrane covering the external surface of the organs within the cavity.
Term
Peritoneum
Definition
Serosa lining the abdominal cavity and covering its organs.
Term
Pleura
Definition
The serosa lining encasing the lungs.
Term
Pericardium
Definition
The serosa lining around the heart.
Term
Umbilical region
Definition
Abdominopelvic region. The centermost region, which includes the umbilicus.
Term
Epigastric region
Definition
Abdonino pelvic region. Immediately superior to the umbilical region; overlies most of the stomach.
Term
Hypogastric (pubic) region
Definition
Abdonino pelvic region. Immediately inferior to the umbilical region; encompasses the pubic area.
Term
Iliac (inguinal) regions
Definition
Abdonino pelvic region. Lateral to the hypogastric region and overlying the superior part of the hip bones.
Term
Lumbar regions
Definition
Abdonino pelvic region. Between the ribs and the flaring portion sof the hip bones; lateral to the umbilical region.
Term
Hypochondriac regions
Definition
Abdonino pelvic region. Flanking the pigastric region laterally and overyling the lower ribs.
Term
Oral cavity
Definition
Contains the tongue and teeth. Continuous with the rest of the digestive tube, which opens to the exterior at the anus.
Term
Nasal cavity
Definition
Located within and posterior to the nose. Part of the passages of the respiratory system.
Term
Orbital cavities
Definition
In the skull, housing the eyes and presenting them in an anterior position.
Term
Middle ear cavities
Definition
Medial to an eardrum and carved into the skull. Contain tiny bones that transmit sound vibrations to the organ of hearing in the inner ears.
Term
Synovial cavities
Definition
Joint cavities - enclosed within fiberous capsules that surround the freely movable joints of the body. Membranes lining the synovial cavities secrete a lubricating fluid that reduces friction as the enclosed structures move across one another.
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