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Choose the following statement that is not completely correct regarding serous membranes.

1) Serosa are very thin, double-layered structures.
2) Serous membranes are divided into parietal and visceral membranes with a potential space between the two.
3) Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls of the heart.
4) Serous membranes secrete a watery lubricating fluid.

1 Answer

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Final answer:

The statement that is not completely correct is that the visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls of the heart.

Step-by-step explanation:

The statement that is not completely correct regarding serous membranes is: 3) Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls of the heart.

The correct statement is that the parietal pericardium covers the surface of the heart, and visceral pericardium lines the walls of the heart. The parietal pericardium forms the outer layer of the pericardial sac, while the visceral pericardium is the inner layer that sits directly on the surface of the heart.

The statement that is not completely correct regarding serous membranes is:

3) Visceral pericardium covers the surface of the heart, and parietal pericardium lines the walls of the heart.

The correct information is that the visceral pericardium covers the surface of the heart, whereas the parietal pericardium lines the walls of the pericardial cavity, not the walls of the heart itself. Serous membranes are divided into parietal and visceral layers with a serous fluid-filled space between them. The parietal layer lines the cavity walls while the visceral layer covers the organs.

Serous membranes such as the pleura, pericardium, and peritoneum are involved in reducing friction between organs and the body wall, providing a smooth and protective surface.

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