Stomach in Biological Definition

Digestion

... be easily passed through the esophagus to the stomach . In the stomach, food is churned and thoroughly ... chemically. As the acidic level changes in the stomach and later parts of the digestive tract, more ... ) while birds may develop a gizzard (or a stomach that acts as teeth and mechanically digests ....

Enzyme

... early as the late 1700s and early 1800s the digestion of meat by stomach secretions and the conversion of starch to sugars by plant extracts and ... chymotrypsinogen in the pancreas and transported in this form to the stomach where it is activated. This prevents the enzyme from harmful digestion of ...

Anatomy

... Larynx Liver Lung Nose Ovary Pharynx Pancreas Penis Placenta Rectum Skin Small intestine Spleen stomach Tongue Uterus Bones in the human skeleton : Collar bone (clavicle) Thigh bone (femur) Humerus Mandible Patella ...

Antibody

... (4%). IgA IgA represent about 15 to 20% of immunoglobulins in the blood although it is primarily secreted across the mucosal tract into the stomach and intestines . It is also found in maternal milk , tears and saliva . This immunoglobulin helps to fight against pathogens that contact the ...

Cancer

... cancer , renal cell carcinoma - in the kidneys , rhabdomyosarcoma - in muscles , skin cancer (including benign moles and dysplastic nevi ), stomach cancer , testicular cancer , and thyroid cancer . Childhood cancers Cancer can also occur in young children, particularly infants. Here, the ...

Charles Darwin

... as a popular author. In December 1839 as Emma's first pregnancy progressed, Charles fell ill. For the rest of his life he suffered episodes of stomach pains, vomiting, severe boils and other symptoms which frequently limited his working time to a few minutes a day or forced him to stop working and ...

Foot and mouth disease

... with foot-and-mouth disease through contact with infected animals, but this is extremely rare. Because the virus that causes FMD is sensitive to stomach acid, it cannot spread to humans via consumption of infected meat. In the UK, the last confirmed human case occurred in 1967, and only a few other ...

Nutrition

... the cells of the body (except those cells produced before birth ) is acquired from food in the digestive system . Not all the food matter in the stomach can be used for the body; the matter that is left over as waste is removed. Study in this field must take into account the state of the animal ...