Stoma
In botany, a stoma (plural "stomata"), also called a stomate (plural "stomates") (from Greek στόμα, "mouth"), is a pore, found in the epidermis of leaves, stems, and other organs, that is used to control gas exchange.
The pore is bordered by a pair of specialized parenchyma cells known as guard cells that are responsible for regulating the size of the opening. The term is also used collectively to refer to an entire stomatal complex, both the pore itself and its accompanying guard cells. Air enters the plant through these openings, and contains carbon dioxide and oxygen, which are used in photosynthesis and respiration, respectively. Oxygen produced as a by-product of photosynthesis diffuses out to the atmosphere through these same openings. Also, water vapor is released into the atmosphere through these pores in a process called transpiration.
Stomata are present in the sporophyte generation of all land plant groups except liverworts. Dicotyledons usually have more stomata on the lower epidermis than the upper epidermis. Monocotyledons, on the other hand, usually have the same number of stomata on the two epidermes. In plants with floating leaves, stomata may be found only on the upper epidermis and submerged leaves may lack stomata entirely.
Stoma (disambiguation)
Stoma may refer to:
Stoma (medicine)
In anatomy, a natural stoma is any opening in the body, such as the mouth. Any hollow organ can be manipulated into an artificial stoma as necessary. This includes the esophagus, stomach, duodenum, ileum, colon, pleural cavity, ureters, urinary bladder, and kidney pelvis.
Gastrointestinal stomata
Stomata are found in particular in procedures involving the gastrointestinal tract (GIT) or gastrointestinal system (GIS). The GIT begins at the mouth or oral cavity and continues until its termination, which is the anus.
Examples of gastrointestinal stomata include:
- Cecostomy
- Colostomy
- Duodenostomy
- Ileostomy
- Jejunostomy
- Appendicostomy (see Malone antegrade continence enema)
One well-known form of an artificial stoma is a colostomy, which is a surgically created opening in the large intestine that allows the removal of feces out of the body, bypassing the rectum, to drain into a pouch or other collection device.
Podcasts:
Stoma
ALBUMS
- The Glorification of Sexual Depravation released: 2012
- Scat Aficionados released: 2004
The Glorification of Sexual Depravation
Released 2012- The Glorification of Sexual Depravation
- Truckerfags in Denial
- The Gummi Tit Butcher
- Rectal, Cranium Inversion
- Tag Team Gangbang
- Origin of the Feces
- Purulent Encopresion
- Totally Nullo
- Morbid Grind Freak
- Urethral Defloration
- Der Leichenfresser
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- Spineless Coward
- Prolapsed Cumfarting Shittube
- Diarrhea Bukakke
Scat Aficionados
Released 2004- In Grind We Crust
- Sodomized at the Gay Parade
- Drastic Clit Castration
- Scat Aficionados
- Brutally Raped / Gently Dissected
- Cum Choked
- Kaviar Schlampe
- Corn Hole Armageddon
- Stepfather's Fate
- Climaxing the Peadophile
- Violent As(s) Fuck
- Work for Never
- Feasting on a Vegan Cadaver
- Old Hags in Body Bags
- Oh My Gush
- My Kid Sister
Stöma
ALBUMS
- Boe! released: 2008
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I put you to the sword
Gasp your vomit out
You'll never reach the shore
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Scary vulgarism
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