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| 1. |
write some similarties between lubing and small intestine |
| Answer» <p>The small intestine or small bowel is an organ in the gastrointestinal tract where .... The three sections of the small intestine look similar to each other at a microscopic level, but there...</p> <p>BASIS FOR COMPARISONSMALL INTESTINELARGE INTESTINESizeSmall intestine measures around 4.5 - 7.0 m in size.Large intestine measures around 1.5 m in size.It is narrow in width of around 3.5 - 4.5 cm.It has width of around 4 - 6 cm in diameter.PartsIt has three parts, which are duodenum, jejunum and ileum.It has four parts, which are colon, rectum, caecum and anal canal.Circular foldsInternal surface of small intestine has circular folds, also called as 'palicae circulares'.Circular folds are absent.Presence of VilliVilli are present.Villi are absent.Peyers PatchesPeyers Patches are present. (aggregations of lymphoid tissue).Peyers patches are absent.Muscle bandsIt forms the layer of continuous bands of muscles around it.It is reduced to three types of muscles bands called as taeniae coli.Taeniae ColiTaenia coli is absent from the surface of small intestine.Taenia Coli are present.MotilityIt shows small movements in the abdominal cavity .Large intestine is fixed or show very little mobility.HasturaAbsentPresentEpiploic appendagesEpipolic apppedages is absent in small intestine.Epipolic appendages are present.Role in digestionDigestion is complicated.No role in digestion.Hormones SecretedNumerous hormones are secreted.No hormones are secreted.ActivityIt absorb the nutrients from the digested food.It takes part in absorption of water and electrolytes and in production of vitamins.It shows small movements in abdominal activity.It has less mobility and is largely fixed.</p> | |