GThoracic and Abdominopelvic Membranes: SerauS mems eural mena serous membranes
ID: 3508421 • Letter: G
Question
GThoracic and Abdominopelvic Membranes: SerauS mems eural mena serous membranes (Serosal that enclose the = covers surface of the len = potential space between pluronem.(anto ospw d. gewass_loflamnomaa (wrae when serous membranes are inflame c. Ple ral Cow normally smooth surfaces become roughened causes organs to stick together and dra across one another, leading to excatietine paia viscoal pleur Peitaneal M b. Visceral Pentnem prevent taction Pentaneal Cahs ptncelfid Most organs in the abdominopelvic cavity are suspended from the posterior wall of t by a double-layered membrane of pane mesentedes Kidneys do not hang into the cavity on estatenesLocated outside peritoneum = ndospe atonewl . These membrane supportsExplanation / Answer
Ans: Serous fluid: Serous fluid produced by the membrane fills the cavity between the parietal and visceral layers and acts as a lubricant between the organ and body wall for example heart beating against body wall creates friction serous fluid alleviates that friction.
The names of the different serous membranes are: Heart: Pericardium. Lungs and thoracic cavity: Pleura and Abdominopelvic cavity: Peritoneum
The serous membrane layers for the heart are parietal pericardium, visceral pericardium, pericardial cavity (containing pericardial fluid). The serous membrane layers for lungs and thoracic cavity includes parietal pleura, visceral pleura, pleural cavity containing pleural fluid and the serous membrane layers for the abdominopelvic cavity are parietal peritoneum, visceral peritoneum, peritonial cavity containing peritonial fluid
Serous membrane is a slippery double-layered membrane which covers the viscera within the thoracic and abdominal cavities and also lines the walls of thorax and abdomen. The layers of serous membranes are parietal layer which is the outermost layer which lines the trunk cavity. Visceral layer a innermost layer and lines the organs. Serous membranes are continuous visceral layer joins directly on to the parietal layer.
The pericardium: Peri means outermost. Cardium comes from cardia (heart). Therefore, it is the outermost layer (serous membrane) surrounding the heart. Composed of the parietal pericardium and visceral pericardium, separated by serous fluid
The pleura is the outermost layer surrounding the lungs and thoracic cavity. Composed of the parietal pleura and visceral pleura, separated by serous fluid
The peritoneum is the outermost layer surrounding the abdominopelvic cavity. Composed of parietal peritoneum and visceral peritoneum, separated by serous fluid
The major functions of serous membranes: They are slippery so allow organs to move past each other. Offset friction and tension. For example lungs-rub against inner walls of pleural cavity that would produce a lot of tissue damage if there was not a serous membrane there. Serous membrane attach outer surface of lungs to inner surface of the ribcage, allows for inflation and expanding
Peritoneal folds (formations) is a fused double layer serous membranes that suspend intra-paroteneal viscera inside peritoneal cavity. It also anchors peritoneal viscera. Interconnect structures. Fat storage. Route and transmit the blood and nerve supplies to organs
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