The human abdomen (also called the belly or midriff) is the part of the body between the pelvis In human anatomy, the pelvis is the part of the trunk inferioposterior (below-behind) to the abdomen in the transition area between the trunk and the lower limbs. The term is used to denote several structures: and the thorax In hominids, the chest is the region of the body between the neck and the abdomen, along with its internal organs and other contents. It is mostly protected and supported by the ribcage, spine, and shoulder girdle. Contents of the chest include the following:. Anatomically, the abdomen stretches from the thorax at the thoracic diaphragm In the anatomy of mammals, the thoracic diaphragm or sometime simply, the diaphragm, is a sheet of internal muscle that extends across the bottom of the rib cage. The diaphragm separates the thoracic cavity from the abdominal cavity and performs an important function in respiration. A diaphragm in anatomy can refer to other flat structures such as to the pelvis at the pelvic brim The pelvis is divided by an oblique plane passing through the prominence of the sacrum, the arcuate and pectineal lines, and the upper margin of the symphysis pubis, into the greater pelvis and the lesser pelvis. The circumference of this plane is termed the pelvic brim or pelvic opening. The pelvic brim stretches from the lumbosacral angle (the intervertebral disk Intervertebral discs lie between adjacent vertebrae in the spine. Each disc forms a cartilaginous joint to allow slight movement of the vertebrae, and acts as a ligament to hold the vertebrae together between L5 and S1) to the pubic symphysis and is the edge of the pelvic inlet The superior circumference of the lesser pelvis forms the brim of the pelvis, the included space being called the superior aperture or pelvic inlet. The space above this inlet and under the thoracic diaphragm is termed the abdominal cavity The abdominal cavity is one body cavity of the human body that holds the bulk of the viscera and which is located below (or inferior to) the thoracic cavity, and above the pelvic cavity. It is a part of the abdominopelvic cavity. The boundary of the abdominal cavity is the abdominal wall in the front and the peritoneal surface at the rear.
Functionally, the human abdomen is where most of the alimentary tract The digestive system is the system by which ingested food is acted upon by physical and chemical means to provide the body with nutrients it can absorb and to excrete waste products; in mammals the system includes the alimentary canal extending from the mouth to the anus, and the hormones and enzymes assisting in digestion is placed and so most of the absorption and digestion of food occurs here. The alimentary tract in the abdomen consists of the lower esophagus The esophagus or oesophagus , sometimes known as the gullet, is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach. The word esophagus is derived from the Latin œsophagus, which derives from the Greek word oisophagos (οισοφάγος), lit. "entrance for eating." In, the stomach The stomach is a muscular organ of the digestive tract. It is located between the esophagus and the small intestine. The stomach is hollow and sac-shaped. It is involved in the second phase of digestion, following mastication .The stomach produces protease enzymes and hydrochloric acid which kills bacteria and gives the right pH for the protease, the 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 may be used instead of duodenum. In mammals the duodenum may be the principal site for iron absorption, the jejunum The jejunum is the middle 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 middle intestine or mid-gut may be used instead of jejunum, 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 may be used instead of ileum, the cecum The cecum or caecum is a pouch, connecting the ileum with the ascending colon of the large intestine. It is separated from the ileum by the ileocecal valve (ICV) or Bauhin's valve, and is considered to be the beginning of the large intestine. It is also separated from the colon by the cecocolic junction and the appendix In human anatomy, the appendix (or vermiform appendix; also cecal appendix; also vermix) is a blind-ended tube connected to the cecum (or caecum), from which it develops embryologically. The cecum is a pouchlike structure of the colon. The appendix is located near the junction of the small intestine and the large intestine, the ascending It passes upward, from its commencement at the cecum, opposite the colic valve, to the under surface of the right lobe of the liver, on the right of the gall-bladder, where it is lodged in a shallow depression, the colic impression; here it bends abruptly forward and to the left, forming the right colic flexure, transverse The transverse colon the longest and most movable part of the colon, passes with a downward convexity from the right hypochondrium region across the abdomen, opposite the confines of the epigastric and umbilical zones, into the left hypochondrium region, where it curves sharply on itself beneath the lower end of the spleen, forming the splenic or and descending colons The descending colon of humans passes downward through the left hypochondrium and lumbar regions, along the lateral border of the left kidney, the sigmoid colon The sigmoid colon forms a loop that averages about 40 cm. in length, and normally lies within the pelvis, but on account of its freedom of movement it is liable to be displaced into the abdominal cavity. The sigmoid colon is the part of the large intestine which is closest to the rectum and anus and the rectum The rectum is the final straight portion of the large intestine in some mammals, and the gut in others, terminating in the anus. The human rectum is about 12 cm long.[citation needed] Its caliber is similar to that of the sigmoid colon at its commencement, but it is dilated near its termination, forming the rectal ampulla. Other vital organs inside the abdomen include the liver The liver is a vital organ present in vertebrates and some other animals. It has a wide range of functions, including detoxification, protein synthesis, and production of biochemicals necessary for digestion. The liver is necessary for survival; there is currently no way to compensate for the absence of liver function, the kidneys The kidneys are paired organs, which have the production of urine as their primary function. Kidneys are seen in many types of animals, including vertebrates and some invertebrates. They are an essential part of the urinary system, but have several secondary functions concerned with homeostatic functions. These include the regulation of, the pancreas The pancreas is a gland organ in the digestive and endocrine system of vertebrates. It is both an endocrine gland producing several important hormones, including insulin, glucagon, and somatostatin, as well as an exocrine gland, secreting pancreatic juice containing digestive enzymes that pass to the small intestine. These enzymes help in the and the spleen The spleen is an organ found in virtually all vertebrate animals with important roles in regard to red blood cells and the immune system. In humans, it is located in the left upper quadrant of the abdomen. It removes old red blood cells and holds a reserve in case of hemorrhagic shock, especially in animals like horses , while recycling iron. It.
The abdominal wall There is a common set of layers covering and forming all the walls: the deepest being the extraperitoneal fat, the parietal peritoneum, and a layer of fascia which has different names over where it covers is split into the posterior (back), lateral (sides) and anterior (front) walls.
Contents |
Orillia Packet & Times
The primary focus is put on contracting your abdominal muscles by pulling your belly button in toward your spine throughout the exercises to ensure that ...
700px x 428px | 64.80kB
[source page]
CURAD Abdominal Supports Abdominal Binder Used in hospitals Elastic material provides optimum support for weakened abdominal muscles following surgical procedures including Cesarean section Tri panel design
admin
Sun, 28 Feb 2010 08:00:44 GM
The transverse abdominus is the deepest layer of . abdominal muscle. and wraps around the whole midsection. When you contract the abdominals, your waist becomes thinner; thus a strong transverse abdominus means a smaller, tighter waist. ...
