What membrane lines the pericardial cavity?
The serous membrane covering the heart and lining the mediastinum is referred to as the pericardium, the serous membrane lining the thoracic cavity and surrounding the lungs is referred to as the pleura, and that lining the abdominopelvic cavity and the viscera is referred to as the peritoneum.
What lines the pericardial cavity?
In between the parietal and visceral pericardial layers there is a potential space called the pericardial cavity, which contains a supply of lubricating serous fluid known as the pericardial fluid.
What membrane lines the abdominal cavity?
Serous membrane lining the wall of a serous cavity is designated parietal while that covering viscera is called visceral. Connecting serous membrane runs between parietal and visceral components. The serous membranes are: Peritoneum — the peritoneal cavity is found within the abdominal & pelvic body cavities.
What is a serous fluid?
In physiology, the term serous fluid or serosal fluid (originating from the Medieval Latin word serosus, from Latin serum) is any of various body fluids resembling serum, that are typically pale yellow and transparent and of a benign nature. The fluid fills the inside of body cavities.
What is not a component of sweat?
Sweat is composed of several components: Water, which is the primary component, and makes up 99% of sweat. Salts, which are released as part of the excretory, waste removal function of the skin. Urea, which is another waste product.
Parietal pericardium: The outer layer of the pericardium which is a conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium has outer and inner coats.
Which organs are located in the retroperitoneal space?
Retroperitoneal structures include the rest of the duodenum, the ascending colon, the descending colon, the middle third of the rectum, and the remainder of the pancreas. Other organs located in the retroperitoneal space are the kidneys, adrenal glands, proximal ureters, and renal vessels.
What lines the thoracic cavity?
The chest cavity is lined with a serous membrane, which exudes a thin fluid. That portion of the chest membrane is called the parietal pleura. The pleural cavity is the space, when it occurs, between the parietal and the visceral pleura.
What body cavity is the pituitary gland in?
It is a protrusion off the bottom of the hypothalamus at the base of the brain. The hypophysis rests upon the hypophysial fossa of the sphenoid bone in the center of the middle cranial fossa and is surrounded by a small bony cavity (sella turcica) covered by a dural fold (diaphragma sellae).
What type of membrane surrounds the lungs?
The pleura are double-layered serous membranes that surround each lung. Attached to the wall of the thoracic cavity, the parietal pleura forms the outer layer of the membrane. The visceral pleura forms the inner layer of the membrane covering the outside surface of the lungs.
What is the definition of visceral pericardium?
One layer of the visceral pericardium closely adheres to the heart, and the other lines the inner surface of the outer (parietal) pericardium. The intervening space is filled with pericardial fluid. Also known as epicardium.
Which cavity contains the spinal cord?
In the posterior (dorsal) cavity, the cranial cavity houses the brain, and the spinal cavity (or vertebral cavity) encloses the spinal cord. Just as the brain and spinal cord make up a continuous, uninterrupted structure, the cranial and spinal cavities that house them are also continuous.
What is the definition of pleural cavity?
The pleural cavity is the thin fluid-filled space between the two pulmonary pleurae (known as visceral and parietal) of each lung. A pleura is a serous membrane which folds back onto itself to form a two-layered membranous pleural sac.
What is the lubricating liquid in serous cavities?
Serous membranes line and enclose several body cavities, known as serous cavities, where they secrete a lubricating fluid which reduces friction from muscle movement. Serosa is entirely different from the adventitia, a connective tissue layer which binds together structures rather than reducing friction between them.
What is the parietal peritoneum?
The outer layer, the parietal peritoneum, is attached to the abdominal wall and the pelvic walls. The inner layer, the visceral peritoneum, is wrapped around the visceral organs, located inside the intraperitoneal space for protection. It is thinner than the parietal peritoneum.
Which body cavity is not part of the dorsal cavity?
The dorsal body cavity is located along the dorsal (posterior) surface of the human body, where it is subdivided into the cranial cavity housing the brain and the spinal cavity housing the spinal cord. The two cavities are continuous with one another.
What is the meaning of peritoneal cavity?
The peritoneal cavity is a potential space between the parietal peritoneum (the peritoneum that surrounds the abdominal wall) and visceral peritoneum (the peritoneum that surrounds the internal organs).
Which cavity contains the heart and lungs?
Thoracic cavity: The chest; contains the trachea, bronchi, lungs, esophagus, heart and great blood vessels, thymus gland, lymph nodes, and nerve,. as well as the following smaller cavities: Pleural cavities: Surround each lung. Pericardial cavity: Contains the heart.
What is the function of the serosa in the stomach?
Serous membranes line and enclose several body cavities, known as serous cavities, where they secrete a lubricating fluid to reduce friction from muscle movements. Serosa is not to be confused with adventitia, a connective tissue layer that binds together structures rather than reduces friction between them.
Updated: 25th November 2019