Structure and Function of the Gastrointestinal Tract in Infants and Children

2004 ◽  
Vol 31 (4) ◽  
pp. 207-212 ◽  
Author(s):  
Dorothy Doughty
Keyword(s):  
Gastrointestinal Tract ◽  
Structure And Function ◽  
Infants And Children ◽  
And Function ◽  
In Infants And Children

Radiographic Studies on the Structure and Function of the Gastrointestinal Tract of Two Species of Potoroine Marsupials.

1985 ◽  
Vol 33 (5) ◽  
pp. 641 ◽  
Author(s):  
ID Hume ◽  
CH Carlisle
Keyword(s):  
Gastrointestinal Tract ◽  
Contrast Medium ◽  
Barium Sulphate ◽  
Structure And Function ◽  
And Function ◽  
Potorous Tridactylus

The structure and function of the gastrointestinal tracts of 2 potoroine marsupials, Aepyprymnus rufescens, the rufous rat-kangaroo, and Potorous tridactylus, the long-nosed potoroo, were examined by the use of radiographic and fluoroscopic techniques. In both species barium sulphate given by mouth entered the sacciform forestomach within 20 min of dosing, but in the same time the hindstomach and duodenum were clearly outlined. Contrast medium reached the hindgut within 1 to 2 h, but was retained there for at least 24 h. A proportion of radio-opaque particles given by mouth also bypassed the sacciform forestomach, but those that entered the gastric region were retained there for up to 93 h. The stomach constituted 50% of total gut capacity, and the hindgut (caecum and colon) 35%. The sacciform forestomach was the largest gastric region. It is concluded that, on the basis of anatomy and digesta movements, the forestomach may be less important, and the hindgut more important, in fermentative digestion in the Potoroinae than in the Macropodidae.

The effects of anesthesia and surgery on lymphocyte populations and function in infants and children

1989 ◽  
Vol 24 (9) ◽  
pp. 884-887 ◽  
Author(s):  
Martin P. Ward Platt ◽  
Penny E. Lovat ◽  
J. Graham Watson ◽  
A. Aynsley-Green
Keyword(s):  
Infants And Children ◽  
And Function ◽  
Lymphocyte Populations ◽  
In Infants And Children

Lactoferrin – 50 years on

2012 ◽  
Vol 90 (3) ◽  
pp. 245-251 ◽  
Author(s):  
Jeremy H. Brock
Keyword(s):  
Gastrointestinal Tract ◽  
Antimicrobial Agent ◽  
Iron Transport ◽  
Iron Absorption ◽  
Structure And Function ◽  
Transport Protein ◽  
Future Research ◽  
Iron Binding ◽  
Plasma Iron ◽  
And Function

It is now some 50 years since iron-binding lactoferrin was first isolated and purified, an event that opened the way to subsequent extensive research on lactoferrin structure and function. The initial recognition that lactoferrin closely resembled the plasma iron-transport protein transferrin meant that lactoferrin was first thought to mediate intestinal iron absorption or to act as an antimicrobial agent. It was also suggested that it could mediate the hyposideraemia of inflammation. This paper will assess to what extent early proposals have stood the test of time and also suggest possible mechanisms by which lactoferrin can mediate the large number of potential functions that have subsequently been proposed. It will also review the ability of lactoferrin to resist digestion in the gastrointestinal tract and identify areas for future research.

The Influence of Probios or Tylosin on Growth of Pigs and Development of the Gastrointestinal Tract

1988 ◽  
Vol 1988 ◽  
pp. 128-128
Author(s):  
G.K. Collington ◽  
D.S. Parker ◽  
M. Ellis ◽  
D.G. Armstrong
Keyword(s):  
Growth Rate ◽  
Gastrointestinal Tract ◽  
Structure And Function ◽  
Feed Additives ◽  
Feed Additive ◽  
Growth Promoters ◽  
Modes Of Action ◽  
And Function

Both antibiotic and probiotic feed additives are in independent use in the pig industry. The modes of action of these two groups of growth-promoters remain to be established. The present study was designed to investigate the effect of inclusion of an antimicrobial feed additive (Tylosin) or a probiotic (ProbiosR, Pioneer Overseas Corporation) on growth rate and the development of intestinal structure and function of pigs from birth to 80 days of age.

Anatomy and physiology of the gastrointestinal tract

2021 ◽  
pp. 1-16
Author(s):  
Jennie Burch ◽  
Brigitte Collins
Keyword(s):  
Gastrointestinal Tract ◽  
Gall Bladder ◽  
Abdominal Cavity ◽  
Structure And Function ◽  
Pelvic Cavity ◽  
Gi Tract ◽  
Waste Products ◽  
Anatomy And Physiology ◽  
And Function

The anatomy and physiology of the gastrointestinal (GI) tract chapter provides information on the parts, structure, and function of the gut. The hollow tube of the gastrointestinal tract begins at the mouth and ends at the anus. The GI tract in part lies within the abdominal cavity and the pelvic cavity. There are also the accessory organs of the liver, pancreas, and gall bladder. The nerves, hormones, secretions, and blood supply to the gut are also explored. The role of the GI tract is to ingest food and fluids. These are digested through mechanical and chemical means such as chewing. The nutrients are then absorbed, predominantly in the ileum. Waste products are finally eliminated via the anus.

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