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In anatomy, a stoma (pl.: stomata / ˈ s t oʊ m ə t ə / or stomas) is any opening in the body. For example, a mouth , a nose , and an anus are natural stomata. Any hollow organ can be manipulated into an artificial stoma as necessary.
In botany, a stoma (pl.: stomata, from Greek στόμα, "mouth"), also called a stomate (pl.: stomates), is a pore found in the epidermis of leaves, stems, and other organs, that controls the rate of gas exchange between the internal air spaces of the leaf and the atmosphere.
Only the proximal stoma is functioning. Most often, double-barrel colostomy is a temporary colostomy with two openings into the colon (distal and proximal). The elimination occurs through the proximal stoma. Colostomy surgery that is planned usually has a higher rate of long-term success than surgery performed in an emergency situation.
Stoma and ostomy bags may also be referred to as colostomy bags. "There are different types of bags for a stoma but ultimately a stoma bag or ostomy bag are really the same thing," Mumtaz says.
A stoma is a pore, found in the epidermis of leaves, stems, and other organs, that facilitates gas exchange. Stoma may also refer to: Stoma (medicine) , an opening which connects a portion of the body cavity to the outside environment
Pouching systems usually consist of a collection pouch, a barrier on the skin, and connect with the stoma itself, which is the part of the body that has been diverted to the skin. The system may be a one-piece system consisting only of a bag or, in some instances involve a device placed on the skin with a collection pouch that is attached ...
The leaf and stem epidermis is covered with pores called stomata (sing; stoma), part of a stoma complex consisting of a pore surrounded on each side by chloroplast-containing guard cells, and two to four subsidiary cells that lack chloroplasts. The stomata complex regulates the exchange of gases and water vapor between the outside air and the ...
The opening thus revealed is called the stoma (meaning "mouth") and is surrounded by one or two peristomes. Each peristome is a ring of triangular "teeth" formed from the remnants of dead cells with thickened cell walls. There are usually 16 such teeth in a single peristome, separate from each other and able to both fold in to cover the stoma ...