What Is The Anatomy Of The Belly?

What is the anatomy of the stomach?

The stomach is a J-shaped organ in the upper belly ( abdomen ). It’s part of the digestive system. It’s between the end of the food pipe (esophagus) and the start of the first part of the small bowel (duodenum). The stomach is much like a bag with a lining.

What are the 4 parts of the stomach?

The human stomach is subdivided into four regions: the fundus, an expanded area curving up above the cardiac opening (the opening from the stomach into the esophagus); the body, or intermediate region, the central and largest portion; the antrum, the lowermost, somewhat funnel-shaped portion of the stomach; and the

What do you know about the anatomy of the abdomen?

The true abdominal cavity consists of the stomach, duodenum (first part), jejunum, ileum, liver, gallbladder, the tail of the pancreas, spleen, and the transverse colon. The posterior wall of the abdominal cavity is known as the retroperitoneum.

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What are the layers and sections of the stomach?

The stomach walls are made of the following layers (inside to outside): mucosa, muscularis mucosa, submucosa, and muscularis externa. The epithelium of the stomach forms deep pits (fundic or oxyntic glands) where chief cells produce pepsinogen, an inactive precursor of pepsin that degrades proteins.

What are the three layers of the stomach?

Layers of Stomach Wall Layers of the stomach wall, among others, include serosa, muscularis, submucosa, mucosa. The three layers of smooth muscle consist of the outer longitudinal, the middle circular, and the inner oblique muscles.

What are the three parts of the stomach?

Regions of the stomach

  • The cardia is the first part of the stomach below the esophagus.
  • The fundus is the rounded area that lies to the left of the cardia and below the diaphragm.
  • The body is the largest and main part of the stomach.
  • The antrum is the lower part of the stomach.

How many stomachs do humans have?

The four compartments of the stomach are called the rumen, reticulum, omasum, and abomasum. These chambers contain many microbes that break down cellulose and ferment ingested food. The abomasum, the “true” stomach, is the equivalent of the monogastric stomach chamber.

What are the four functions of the stomach?

The core function of the human stomach is as an aid to diges- tion. The four key components of gastric digestive function are its function as a reservoir, acid secretion, enzyme secre- tion and its role in gastrointestinal motility.

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What is inside the stomach of a human?

The stomach is a muscular organ located on the left side of the upper abdomen. The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion.

What organ is behind your belly button?

The pancreas is a long, thin organ located behind the stomach, in the upper left side of the abdomen. It produces enzymes to aid in digestion. If the pancreas becomes inflamed, the condition is known as pancreatitis.

Why is the abdomen so important?

The abdominal muscles support the trunk, allow movement and hold organs in place by regulating internal abdominal pressure. The deep abdominal muscles, together with muscles in the back, make up your ‘core’ muscles and help keep your body stable and balanced, and protects your spine.

What are the 12 organs of the body?

Some of the easily recognisable internal organs and their associated functions are:

  • The brain. The brain is the control centre of the nervous system and is located within the skull.
  • The lungs.
  • The liver.
  • The bladder.
  • The kidneys.
  • The heart.
  • The stomach.
  • The intestines.

What are the main divisions of the stomach?

The main divisions of the stomach are the following:

  • Cardia. The cardia is the portion of the stomach surrounding the cardioesophageal junction, or cardiac orifice (the opening of the esophagus into the stomach ).
  • Fundus. The fundus is the enlarged portion to the left and above the cardiac orifice.
  • Body.
  • Pyloric antrum.
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What is your stomach lining called?

Your stomach has a protective lining of mucus called the mucosa. This lining protects your stomach from the strong stomach acid that digests food.

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