Costodiaphragmatic recess
Encyclopedia
In the pleural cavity
, the costodiaphragmatic recess (also called phrenicocostal sinus) is a potential space
at the posteriormost tips of the cavity, located at the junction of the costal pleura
and diaphragmatic pleura
. It measures approximately 5 cm vertically, and extends from the eighth to the tenth rib along the mid-axillary line.
The lungs expand into this recess during forced inspiration
, however the recess never fills completely. During expiration, it contains no lung tissue, only pleural fluid.
Pleural effusion
s collect in the costodiaphragmatic recess when in standing position
.
A thoracocentesis (pleural tap) is often performed here while a patient is in full expiration because of less risk of puncturing the lungs and thereby causing pneumothorax
.
Pleural cavity
In human anatomy, the pleural cavity is the potential space between the two pleura of the lungs. The pleura is a serous membrane which folds back onto itself to form a two-layered, membrane structure. The thin space between the two pleural layers is known as the pleural cavity; it normally...
, the costodiaphragmatic recess (also called phrenicocostal sinus) is a potential space
Potential space
In anatomy, potential space refers to a space or cavity that can exist because two adjacent features that are not tightly adjoined, but does not appear during normal functioning.-Examples:* subdural space* vagina* pericardial cavity...
at the posteriormost tips of the cavity, located at the junction of the costal pleura
Costal pleura
Different portions of the parietal pleura have received special names which indicate their position: thus, that portion which lines the inner surfaces of the ribs and Intercostales is the costal pleura....
and diaphragmatic pleura
Diaphragmatic pleura
Different portions of the parietal pleura have received special names which indicate their position: that clothing the convex surface of the diaphragm is the diaphragmatic pleura. It, as well as the mediastinal pleura, is innervated by the phrenic nerve....
. It measures approximately 5 cm vertically, and extends from the eighth to the tenth rib along the mid-axillary line.
The lungs expand into this recess during forced inspiration
Inhalation
Inhalation is the movement of air from the external environment, through the air ways, and into the alveoli....
, however the recess never fills completely. During expiration, it contains no lung tissue, only pleural fluid.
Pleural effusion
Pleural effusion
Pleural effusion is excess fluid that accumulates between the two pleural layers, the fluid-filled space that surrounds the lungs. Excessive amounts of such fluid can impair breathing by limiting the expansion of the lungs during ventilation.-Pathophysiology:...
s collect in the costodiaphragmatic recess when in standing position
Standing position
In shooting, the standing position, also known as "offhand", refers to shooting while standing. It is often regarded as the most difficult position. The rules vary depending on the shooting discipline. Generally, one must stand freely, without the aid of a rest or bench. Highpower rifle, smallbore...
.
A thoracocentesis (pleural tap) is often performed here while a patient is in full expiration because of less risk of puncturing the lungs and thereby causing pneumothorax
Pneumothorax
Pneumothorax is a collection of air or gas in the pleural cavity of the chest between the lung and the chest wall. It may occur spontaneously in people without chronic lung conditions as well as in those with lung disease , and many pneumothoraces occur after physical trauma to the chest, blast...
.