abdomen


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abdomen

 [ab´dah-men, ab-do´men]
the anterior portion of the body between the thorax and the pelvis; it contains the abdominal cavity, which is separated from the chest area by the diaphragm. The cavity, which is lined with a membrane known as the peritoneum, contains the stomach, large and small intestines, liver, spleen, pancreas, kidneys, gallbladder, urinary bladder, and other structures. Called also belly and venter. adj., adj abdom´inal.
Internal structures of the abdomen.
acute abdomen (surgical abdomen) an acute intra-abdominal condition of abrupt onset, usually associated with severe pain due to inflammation, perforation, obstruction, infarction, or rupture of abdominal organs, and usually requiring emergency surgical intervention.

ab·do·men

(ab-dō'men, ab'dō-men), [TA] Although the classically correct pronunciation is ab-dō'men, the first syllable is often stressed in the U.S.
The part of the trunk that lies between the thorax and the pelvis. The abdomen does not include the vertebral region posteriorly but is considered by some anatomists to include the pelvis (abdominopelvic cavity). It includes the greater part of the abdominal cavity (cavitas abdominis [TA]) and is divided by arbitrary planes into nine regions.
See also: abdominal regions.
Synonym(s): venter (1) [TA]
[L. abdomen, etym. uncertain]

abdomen

/ab·do·men/ (ab´dah-men) (ab-do´men) that part of the body lying between the thorax and the pelvis, and containing the abdominal cavity and viscera.
acute abdomen  an acute intra-abdominal condition of abrupt onset, usually associated with pain due to inflammation, perforation, obstruction, infarction, or rupture of abdominal organs, and usually requiring emergency surgical intervention.
carinate abdomen , navicular abdomen scaphoid a.
abdomen obsti´pum  congenital shortness of the rectus abdominis muscle.
scaphoid abdomen  one whose anterior wall is hollowed, occurring in children with cerebral disease.
surgical abdomen  acute a.

abdomen

(ăb′də-mən)
n.
1. The part of the body that lies between the thorax and the pelvis and encloses the stomach, intestines, liver, spleen, and pancreas in humans and other mammals. Also called belly.
2. The corresponding region in vertebrates other than mammals.
3. The posterior segment of the body in arthropods.

abdomen

[ab′dəmən, abdō′mən]
Etymology: L, abdominis, belly
the portion of the body between the thorax and the pelvis. The abdominal cavity is lined by the peritoneum; contains the inferior portion of the esophagus, the stomach, the intestines, the liver, the spleen, the pancreas, and other organs; and is bounded by the diaphragm and the pelvis. See also abdominal regions. abdominal [abdom′-] adj.

abdomen

Alternative medicine
See Hara.
 
Anatomy
The region of the body that lies between the thorax and the pelvis, which is separated from the thoracic cavity by the diaphragm and by the plane of the pelvic inlet from the pelvic cavity, and is lined with a serous membrane, the peritoneum; the term abdomen may be used interchangeably with abdominal cavity, which contains the abdominal viscera—stomach, small intestine, colon, rectum, liver, spleen, pancreas, kidneys, appendix, gallbladder, and bladder. The abdomen is enclosed by a wall formed by the abdominal muscles, vertebral column and the ilial bones; it is divided into 9 regions (3 upper—right hypochondriac, epigastric, left hypochondriac; 3 middle—right lateral, umbilical, left lateral; 3 lower—right inguinal, pubic, left inguinal) by 4 imaginary lines projected onto the anterior wall, of which 2 horizontally transect the body—the upper at the level of the cartilages of the 9th ribs, the lower at the iliac crests—and 2 extend vertically on each side of the body from the cartilage of the 8th rib to the centre of the inguinal ligament.

ab·do·men

(ab'dŏ-mĕn) [TA]
The part of the trunk that lies between the thorax and the pelvis; considered by some anatomists to include the pelvis (abdominopelvic cavity). It includes the greater part of the abdominal cavity (cavitasabdominis [TA]), and is divided by arbitrary planes into nine regions.
See also: abdominal regions
Synonym(s): venter (1) .
[L. abdomen, etym. uncertain]

abdomen

The part of the trunk below the chest. The abdominal cavity lies between the DIAPHRAGM, above, and the pelvic floor, below. It contains the LIVER and most of the digestive system, comprising the STOMACH, the DUODENUM, the JEJUNUM, the ILEUM, the CAECUM with the APPENDIX, the COLON, the RECTUM and the ANAL CANAL. Other abdominal organs include the KIDNEYS, the ADRENAL GLANDS, the SPLEEN, the PANCREAS and some large and important blood vessels, such as the AORTA and the inferior VENA CAVA, around which are many chains of LYMPH NODES. The intestines are hung from the back wall of the abdomen by a much-folded membrane, the MESENTERY, and are covered by the OMENTUM. The lower part of the abdomen, the pelvic cavity, contains the BLADDER. In women, the pelvic cavity also contains the womb (UTERUS), the FALLOPIAN TUBES and the OVARIES; in men, the central PROSTATE GLAND and the VAS DEFERENS, on each side. The wall of the abdomen consists of overlapping layers of muscle and sheets of fibrous tissue. The organs and the interior of the walls are covered with PERITONEUM. See also ABDOMINAL REGIONS.

abdomen

that part of the body of vertebrates containing the viscera (i.e. the kidneys, liver, stomach and intestines). In mammals it is separated from the thorax, which contains the heart and lungs, by the diaphragm. In arthropods it is that part of the body directly behind the thorax; in many other invertebrates the abdomen is divided into segments that have a superficial similarity.
Figure 1: Ascending nerve pathways and proprioceptive reflex arcs, represented in diagrammatic sections of the brain and spinal cord. Shown on the right: those serving the sensations listed. Shown on the left: reflex pathways for skeletal muscle control. (A) From a muscle spindle, to a synapse with an alpha motor neuron, and a branch to the brain. (B) From a tendon organ, inhibitory branch (broken line) to an alpha motor neuron, and a branch to the brain.

abdomen

region of the body between the thorax (separated from it by the diaphragm) and the pelvis; colloquial belly. The abdominal wall consists of skin, connective tissue including a variable amount of fat, and muscles. A continuous thin membrane, the peritoneum, lines the wall and covers all the organs in the abdominal cavity. Figure 1.

ab·do·men

(ab'dŏ-mĕn) [TA]
The part of the trunk that lies between thorax and pelvis; does not include the vertebral region posteriorly but is considered by some anatomists to include the pelvis (abdominopelvic cavity). It includes the greater part of the abdominal cavity (cavitas abdominis [TA]) and is divided by arbitrary planes into nine regions.
[L. abdomen, etym. uncertain]

abdomen,

n the portion of the body between the thorax and the pelvis.

abdomen

the portion of the body between the thorax and the pelvis containing the abdominal cavity. See also abdominal.

acute abdomen
an acute intra-abdominal condition of abrupt onset, usually associated with pain due to inflammation, perforation, obstruction, infarction or rupture of abdominal organs, and usually requiring emergency intervention. Called also surgical abdomen.
gaunt abdomen
decreased abdominal size.
surgical abdomen
see acute abdomen (above).

Patient discussion about abdomen

Q. Uncomfortable in my left-lower abdomen. But it is not acute or dull pain at all. I'm starting to feel uncomfortable in my lower-left abdomen. I roughly guess it started summer in 2008. Certainly, it's not acute or even dull pain at all. But it makes me very uncomfortable when I sit on the chair. I can feel it by sitting on the chair. Such uncomfortableness seems to reside in somewhere between my left leg and abdomen. It is under my navel, and to the left, extending to the my left flank. Once again, I can sense it by touching something developing (With my fingers, I gently pressed that area and, I realized that there's a difference between pressing on the lower-left abdomen and the lower-right abdomen.) But it is not something swollen, and not a hard thing. I've never had the caecum removed. I'm 40 years old, East asian. I quitted smoking in early 90's. In Octocber, 2008 I found my blood pressure pretty good (I can't remember it, though). My life is quite sedentary (I'm a graduate student.) I guess I spend most of my daily time on the chair. Thanks for any opinion in advance.

A. hi '''i do have the same thing all what i do is keep it higher than my hart and after a lettel time it well come back to normal and i advice you to go see a d'r when you have the rhit time for it.......and happy holly day and happy 2009..lolo21

Q. I am having a sharp pain in the right side of the lower abdomen on and off. Any danger of losing my baby? Hello, after several years after my marriage I have become pregnant. I am just 7 weeks pregnant and taking utmost care as I have been longing for a baby. However I am having a sharp pain in the right side of the lower abdomen on and off. Will I be in any danger of losing my baby? I have an appointment with my doctor tomorrow to get this issue checked out. In the meantime I have been very worried. Does anyone have any suggestions for me?

A. hhmm.. the sharp pain in lower right abdomen can mean nothing specific , but it can also be an appendicitis. but sometimes that kind of feeling (not the appendicitis one) happens during early pregnancy. so you're exactly doing right, by going to see your doctor.

we all hope you well, and have a healthy pregnancy

Q. What are the symptoms of Ulcerative Colitis? I am 40 years old and suffer from a lot of stomach aches and diarrhea. Do I have Ulcerative Colitis? What are its symptoms?

A. Here's a pretty good article that covers symptoms of UC:

http://www.wearecrohns.org/ucers/articles/319

More discussions about abdomen
References in periodicals archive ?
Noah managed to remove a teratoma (a non-cancerous tumor consisting of tissue and components from various types of body cells) weighing 25 kilograms from the abdomen of a 37 year-old woman, who has recovered fully and is now leading a normal life.
Hanan was then admitted to the casualty department of Al Bashir public hospital in Amman where X-rays revealed a foreign object in her abdomen.
With the camera inside his abdomen we could see the full extent of the abnormalities in there.
Tummy tuck surgery, known more officially as abdominoplasty, flattens the abdomen by eliminating excess or loose fat and skin, and tightening muscles inside the wall of the abdomen.
This edition has CT imaging of the chest and abdomen in the axial, sagittal, and coronal planes; a new foldout of pulmonary and hepatic segments and lymph node stations; more on vascular imaging studies in chapters on special MR examinations and MR angiography; more detail on image labels; and international classifications of the American Heart Association for cardiac vessels and the American Joint Committee on Cancer/Union for International Cancer Control for lung cancer and mediastinal lymph nodes.
As the body fails to absorb the dead foetus, it calcifies in the abdomen and remains undetected for many years.
The pump removes around 10-15ml of fluid from the abdomen every 15 minutes and can remove four litres of fluid every day at its maximum.
Sometimes, as people grow older, the wall of the aorta in the abdomen can become weak and stretch to form an aneurysm.
Police said the injury appeared to be an accidental, self-inflicted gunshot wound to his abdomen, according to the reports.
The process is repeated progressively down the body, from the abdomen through the buttocks, thighs and calves to the feet.
Health authorities in the Black Country are offering all men aged 65 or over a free test for Abdominal Aortic Aneurysm (AAA), which is caused when the main blood vessel in the abdomen - the aorta - weakens and starts to expand.
NNA- A Nepalese house maid, born in 1975, thrust a knife in her abdomen after stabbing her Lebanese employer Mona al Shemali, born in 1940, in her hand in her house in Ajaltoun.