The pericardial sac, consisting of the parietal (outer) and visceral (inner) layers surrounds the heart. This contains a small amout of fluid to lubricate and cushion the heart as it expands and contracts, but it is not necessarily a gland.
A mucous membrane covers the inner surface of the eyelid. It is moist and since it makes mucous, the eyelid moves easily over the eye.
ciliated epithelium
Maybe
villi
The conjunctiva is a sac that lines the inner surface of the eyelids and covers the white part of the eye (sclera). It helps lubricate the eye and protect it from foreign particles and infections.
Using a tracheostomy tube with a removable inner cannula allows for easier cleaning and maintenance, reducing the risk of infection. It also enables quick replacement of a soiled or blocked inner cannula without having to change the entire tracheostomy tube, which can be more comfortable for the patient.
The answer is conjunctiva.
The function of the inner albumen, also known as the egg white, is to provide a cushion and protective barrier for the developing embryo in the egg. It also contains protein that serves as a source of nutrition for the growing embryo.
Wheel weights can be attached using adhesive backing, which allows the weights to stick directly to the wheel's inner surface for a clean and balanced installation. Alternatively, they can be attached using clips, which secure the weights to the rim of the wheel, making them easily removable and adjustable when necessary.
People need fat to cushion their inner body's important organs and for inciliation reasons. But too much fat is not good.
Visceral and parietal visceral- covers the lungs, thin serous membrane parietal- lines the inner chest wall and covers diaphram