anatomy Anatomy () is the branch of biology concerned with the study of the structure of organisms and their parts. Anatomy is a branch of natural science that deals with the structural organization of living things. It is an old science, having i ...

, a stoma (plural stomata or stomas) is any opening in the body. For example, a

mouth In animal anatomy, the mouth, also known as the oral cavity, or in Latin cavum oris, is the opening through which many animals take in food and issue vocal sounds. It is also the cavity lying at the upper end of the alimentary canal, bounded on ...

, a

nose A nose is a protuberance in vertebrates that houses the nostrils, or nares, which receive and expel air for respiration alongside the mouth. Behind the nose are the olfactory mucosa and the sinuses. Behind the nasal cavity, air next passe ...

, and an

anus The anus (Latin, 'ring' or 'circle') is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to control the expulsion of feces, the residual semi-solid waste that remains after food digestion, which, ...

are natural stomata. Any hollow

organ Organ may refer to: Biology * Organ (biology), a part of an organism Musical instruments * Organ (music), a family of keyboard musical instruments characterized by sustained tone ** Electronic organ, an electronic keyboard instrument ** Hammond ...

can be manipulated into an artificial stoma as necessary. This includes the

esophagus The esophagus (American English) or oesophagus (British English; both ), non-technically known also as the food pipe or gullet, is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to t ...

stomach The stomach is a muscular, hollow organ in the gastrointestinal tract of humans and many other animals, including several invertebrates. The stomach has a dilated structure and functions as a vital organ in the digestive system. The stomach i ...

duodenum The duodenum is the first section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear, and the terms anterior intestine or proximal intestine m ...

ileum The ileum () is the final section of the small intestine in most higher vertebrates, including mammals, reptiles, and birds. In fish, the divisions of the small intestine are not as clear and the terms posterior intestine or distal intestine m ...

, colon,

pleural cavity The pleural cavity, pleural space, or interpleural space is the potential space between the pleurae of the pleural sac that surrounds each lung. A small amount of serous pleural fluid is maintained in the pleural cavity to enable lubrication b ...

ureters The ureters are tubes made of smooth muscle that propel urine from the kidneys to the urinary bladder. In a human adult, the ureters are usually long and around in diameter. The ureter is lined by urothelial cells, a type of transitional epit ...

urinary bladder The urinary bladder, or simply bladder, is a hollow organ in humans and other vertebrates that stores urine from the kidneys before disposal by urination. In humans the bladder is a distensible organ that sits on the pelvic floor. Urine ente ...

, and

renal pelvis The renal pelvis or pelvis of the kidney is the funnel-like dilated part of the ureter in the kidney. It is formed by the covnvergence of the major calyces, acting as a funnel for urine flowing from the major calyces to the ureter. It has a muco ...

. Such a stoma may be permanent or temporary. Surgical procedures that involve the creation of an artificial stoma have names that typically end with the suffix "-ostomy", and the same names are also often used to refer to the stoma thus created. For example, the word "

colostomy A colostomy is an opening (stoma) in the large intestine (colon), or the surgical procedure that creates one. The opening is formed by drawing the healthy end of the colon through an incision in the anterior abdominal wall and suturing it into ...

" often refers either to an artificial anus or the procedure that creates one. Accordingly, it is not unusual for a stoma to be called an ostomy (plural ostomies), as is the norm in

wound, ostomy, and continence nursing Wound, ostomy, and continence nursing is a nursing specialty involved with the treatment of patients with acute and chronic wounds, patients with an ostomy (those who have had some kind of bowel or bladder diversion), and patients with incontinence ...

Gastrointestinal stomata

Stomata are created in particular in surgical procedures involving the

gastrointestinal tract The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and ...

(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: * Esophagostomy * Gastrostomy (also see

percutaneous endoscopic gastrostomy Percutaneous endoscopic gastrostomy (PEG) is an endoscopic medical procedure in which a tube (PEG tube) is passed into a patient's stomach through the abdominal wall, most commonly to provide a means of feeding when oral intake is not adequate ( ...

) *

Cholecystostomy A cholecystostomy or cholecystotomy is a procedure where a stoma is created in the gallbladder, which can facilitate placement of a tube for drainage, first performed by American surgeon, Dr. John Stough Bobbs, in 1867. It is sometimes used in cas ...

* Choledochostomy *

Enteric The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus. The GI tract contains all the major organs of the digestive system, in humans and ...

: **

Cecostomy A Malone antegrade continence enema is a surgical procedure used to create a continent pathway proximal to the anus that facilitates fecal evacuation using enemas. Description The operation involves connecting the appendix to the abdominal wall ...

Colostomy A colostomy is an opening (stoma) in the large intestine (colon), or the surgical procedure that creates one. The opening is formed by drawing the healthy end of the colon through an incision in the anterior abdominal wall and suturing it into ...

** Duodenostomy **

Ileostomy Ileostomy is a stoma (surgical opening) constructed by bringing the end or loop of small intestine (the ileum) out onto the surface of the skin, or the surgical procedure which creates this opening. Intestinal waste passes out of the ileostomy an ...

Jejunostomy Jejunostomy is the surgical creation of an opening (stoma) through the skin at the front of the abdomen and the wall of the jejunum (part of the small intestine). It can be performed either endoscopically, or with open surgery. A jejunostomy may ...

** Appendicostomy (see also continental appendicostomy) One well-known form of an artificial stoma is a

, which is a surgically created opening in the

large intestine The large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the digestive system in tetrapods. Water is absorbed here and the remaining waste material is stored in the rectum as feces before bein ...

that allows the removal of

feces Feces ( or faeces), known colloquially and in slang as poo and poop, are the solid or semi-solid remains of food that was not digested in the small intestine, and has been broken down by bacteria in the large intestine. Feces contain a rela ...

out of the body, bypassing the

rectum The rectum is the final straight portion of the large intestine in humans and some other mammals, and the gut in others. The adult human rectum is about long, and begins at the rectosigmoid junction (the end of the sigmoid colon) at the l ...

, to drain into a pouch or other collection device. This

surgical Surgery ''cheirourgikē'' (composed of χείρ, "hand", and ἔργον, "work"), via la, chirurgiae, meaning "hand work". is a medical specialty that uses operative manual and instrumental techniques on a person to investigate or treat a pat ...

procedure is invoked usually as a result of and solution to disease in the GIT. The procedure involves bisecting this tube, usually between the later stage of the small intestine (

) and the large intestine or colon, hence colostomy, and exiting it from the body in the abdominal region. The point of exiting is what is known as the stoma. For greatest success and to minimize negative effects, it is preferable to perform this procedure as low down in the tract as possible, as this allows the maximal amount of natural

digestion Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intest ...

to occur before eliminating fecal matter from the body. The stoma is usually covered with a removable pouching system (adhesive or mechanical) that collects and contains the output for later disposal. Modern pouching systems enable most individuals to resume normal activities and lifestyles after surgery, often with no outward physical evidence of the stoma or its pouching system. When planning the position of the stoma, a stoma nurse should bear in mind the height of the person's waist and beltline so that clothes can fit as before. Also a peri-stomal hernia belt worn from the start can help prevent the stoma from developing a serious hernia problem.

Other examples of stomata

* Dacryocystorhinostomy *

Sclerotomy Sclerotomy is a medical intervention that involves surgical cutting in the white area of the eye, known as the sclera. The goal of this intervention is usually done to correct defects in sclera that resulted as a complication of glaucoma Gla ...

Tracheostomy Tracheotomy (, ), or tracheostomy, is a surgical airway management procedure which consists of making an incision (cut) on the anterior aspect (front) of the neck and opening a direct airway through an incision in the trachea (windpipe). The r ...

Urostomy A urostomy is a surgical procedure that creates a stoma (artificial opening) for the urinary system. A urostomy is made to avail for urinary diversion in cases where drainage of urine through the bladder and urethra is not possible, e.g. after ext ...

(also see

Ileal conduit urinary diversion An ileal conduit urinary diversion is one of various surgical techniques for urinary diversion. It has sometimes been referred to as the Bricker ileal conduit after its inventor, Eugene M. Bricker. It is a form of incontinent urostomy, and was dev ...

) **

Nephrostomy A nephrostomy is an artificial opening created between the kidney and the skin which allows for the urinary diversion directly from the upper part of the urinary system (renal pelvis). An urostomy is a related procedure performed more distally a ...

Ureterostomy A ureterostomy is the creation of a stoma (a new, artificial outlet) for a ureter or kidney.} The procedure is performed to divert the flow of urine away from the bladder when the bladder is not functioning or has been removed. Indications include ...

Vesicostomy A suprapubic cystostomy or suprapubic catheter (SPC) (also known as a vesicostomy or epicystostomy) is a surgically created connection between the urinary bladder and the skin used to drain urine from the bladder in individuals with obstruction o ...

(

cystostomy A suprapubic cystostomy or suprapubic catheter (SPC) (also known as a vesicostomy or epicystostomy) is a surgically created connection between the urinary bladder and the skin used to drain urine from the bladder in individuals with obstruction o ...

) The historical practice of

trepanation Trepanning, also known as trepanation, trephination, trephining or making a burr hole (the verb ''trepan'' derives from Old French from Medieval Latin from Greek , literally "borer, auger"), is a surgical intervention in which a hole is dri ...

was also a type of stoma.

References

External links

"Surgical Stomas"
(

MeSH A mesh is a barrier made of connected strands of metal, fiber, or other flexible or ductile materials. A mesh is similar to a web or a net in that it has many attached or woven strands. Types * A plastic mesh may be extruded, oriented, exp ...

) {{Authority control Gastroenterology Surgery

Gastrointestinal stomata

Other examples of stomata

See also

References

External links