Digestion
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  Digestion



Digestion

    The process the body uses to break down food into simple substances for energy, growth, and cell repair.

RELATED TERMS
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Food
Any substance eaten to provide nutritional support for the body.

Cell
Fundamental structural unit of all life. The cell consists primarily of an outer plasma membrane, which separates it from the environment; the genetic material (DNA), which encodes heritable information for the maintainance of life; and the cytoplasm, a heterogeneous assemblage of ions, molecules, and fluid.



SIMILAR TERMS
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Digenic Acid
(2S-(2 alpha,3 beta,4 beta))-2-Carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid. Ascaricide obtained from the red alga Digenea simplex. It is a potent excitatory amino acid agonist at some types of excitatory amino acid receptors and has been used to discriminate among receptor types. Like many excitatory amino acid agonists it can cause neurotoxicity and has been used experimentally for that purpose.

DiGeorge syndrome
A genetic disorder characterized by hypocalcemia, immunodeficiency, and congenital heart disease: Hypocalcemia (low calcium levels in the blood) due to hypoplasia (underdevelopment) of the parathyroid glands that are needed to control calcium; Immunodeficiency due to hypoplasia (underdevelopment) of the thymus (an organ behind the breastbone needed for the maturation of lymphocytes into T cells); and Congenital heart disease with defects of the outflow tracts (the pulmonary artery and aorta) from the heart. Next to Down syndrome, DiGeorge syndrome is the most common genetic cause of congenital heart disease.

DiGeorge Syndrome
Congenital syndrome with the absence of the thymus and parathyroids causing impairment of cellular immunity. Immunoglobulin levels are normal.

Digestants
Medicines that aid or stimulate digestion. An example is a digestive enzyme such as Lactaid for people with lactase deficiency.

Digestive Epilepsies
Conditions characterized by recurrent paroxysmal neuronal discharges which arise from a focal region of the brain. Partial seizures are divided into simple and complex, depending on whether consciousness is unaltered (simple partial seizure) or disturbed (complex partial seizure). Both types may feature a wide variety of motor, sensory, and autonomic symptoms. Partial seizures may be classified by associated clinical features or anatomic location of the seizure focus. A secondary generalized seizure refers to a partial seizure that spreads to involve the brain diffusely. (From Adams et al., Principles of Neurology, 6th ed, pp317)

Digestive Epilepsy
Conditions characterized by recurrent paroxysmal neuronal discharges which arise from a focal region of the brain. Partial seizures are divided into simple and complex, depending on whether consciousness is unaltered (simple partial seizure) or disturbed (complex partial seizure). Both types may feature a wide variety of motor, sensory, and autonomic symptoms. Partial seizures may be classified by associated clinical features or anatomic location of the seizure focus. A secondary generalized seizure refers to a partial seizure that spreads to involve the brain diffusely. (From Adams et al., Principles of Neurology, 6th ed, pp317)

Digestive Physiologies
Functions and activities of the digestive system as a whole or of any of its parts.

Digestive Physiology
Functions and activities of the digestive system as a whole or of any of its parts.

Digestive system
The organs in the body that break down and absorb food. Organs that make up the digestive system are the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus. Organs that help with digestion but are not part of the digestive tract are the tongue, glands in the mouth that make saliva, pancreas, liver, and gallbladder.

Digestive System Abnormalities
Congenital structural abnormalities of the digestive system.

Digestive System Abnormality
Congenital structural abnormalities of the digestive system.

Digestive System Cancer
Tumors or cancer of the digestive system.

Digestive System Cancers
Tumors or cancer of the digestive system.

Digestive System Diagnostic Technic
Methods and procedures for the diagnosis of diseases or dysfunction of the digestive system or its organs or demonstration of their physiological processes.

Digestive System Diagnostic Technics
Methods and procedures for the diagnosis of diseases or dysfunction of the digestive system or its organs or demonstration of their physiological processes.

Digestive System Diagnostic Techniques
Methods and procedures for the diagnosis of diseases or dysfunction of the digestive system or its organs or demonstration of their physiological processes.

Digestive system disorders
A general term for all disorders of the digestive system, which processesfood and eliminates waste.

Digestive System Endoscopic Surgery
Endoscopic examination, therapy or surgery of the digestive tract.

Digestive System Endoscopic Surgical Procedures
Endoscopic examination, therapy or surgery of the digestive tract.

Digestive System Endoscopies
Endoscopic examination, therapy or surgery of the digestive tract.

Digestive System Endoscopy
Endoscopic examination, therapy or surgery of the digestive tract.

Digestive System Fistula
An abnormal passage communicating between any components of the digestive system, or between any part of the digestive system and surrounding organ(s).

Digestive System Fistulas
An abnormal passage communicating between any components of the digestive system, or between any part of the digestive system and surrounding organ(s).

Digestive System Neoplasm
Tumors or cancer of the digestive system.

Digestive System Neoplasms
Tumors or cancer of the digestive system.

Digestive System Surgical Procedure
Surgery performed on the digestive system or its parts.

Digestive System Surgical Procedures
Surgery performed on the digestive system or its parts.

Digestive Tract Content
The residue of ingested substances in the gastrointestinal tract. Excludes natural secretions and FECES.

Digestive Tract Contents
The residue of ingested substances in the gastrointestinal tract. Excludes natural secretions and FECES.



PREVIOUS AND NEXT TERMS
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Descending colon
The part of the colon where stool is stored. Located on the left side of the abdomen.

Diaphragm
The muscle wall between the chest and the abdomen. It is the major muscle that the body uses for breathing.

Diastolic blood pressure
The lowest blood pressure measure in the arteries, which occurs between heartbeats.

Dietitian
A specialist in the study of nutrition.

Digestants
Medicines that aid or stimulate digestion. An example is a digestive enzyme such as Lactaid for people with lactase deficiency.

Digestion

Digestive system
The organs in the body that break down and absorb food. Organs that make up the digestive system are the mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus. Organs that help with digestion but are not part of the digestive tract are the tongue, glands in the mouth that make saliva, pancreas, liver, and gallbladder.

Digital rectal exam (DRE)
Procedure in which the physician inserts a gloved finger into the rectum to examine the rectum and the prostate gland for signs of cancer.

Distention
Bloating or swelling of the abdomen.

Diuretic
A medication that lowers blood pressure.

Diverticula
Plural form of diverticulum.

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