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21 Cards in this Set
- Front
- Back
Ingestion |
the process by which food is taken by the organism |
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Digestion |
breaking down of complex food molecules into simpler form |
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Absorption |
process in which digested food molecules are taken up by the intestinal wall& sent to the circulatory system |
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Assimilation |
process of incorporation of absorbed food molecules into living cells |
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Egestion |
removal of undigested food particles from the body |
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Extracellular digestion |
digestion outside the cells, as in higher animals where special organs are present |
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Intracellular digestion |
digestion within cells as in lower animals |
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Alimentary canal |
consists of mouth , mouth cavity, food pipe, stomach ,smallintestine, large intestine, rectum & anus |
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Digestive system |
alimentary canal along with the associated glands |
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Villi |
finger like outgrowths present on the inner wall of the small intestine |
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Ruminants |
all the animals who chew cud |
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Rumination |
process of chewing cud
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enzyme |
enzymes are proteins in nature which hasten the metabolic reactions |
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small intestine |
the longest part of the digestive system lies between stomach & colon & is the chief site of digestion of food. |
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Oesophagus |
the part of the alim- entary canal which connects the throatto the stomach |
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Large intestine |
the long tube like organ that is connected to the smallIntestine at the one end& the anus at the other end |
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Rectum |
final section of the largeInstestine terminating at the anus |
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Liver |
a large lobed glandular Organ in the abodomen of vertebratesinvolved in many metabolic processes |
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Pancreas |
a large gland behind the stomach which secretes digestive enzymes into the duodenum
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Dental plaque |
a sticky flim that coats teeth & contains bacteria |
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Cud |
partially digested food & is converted into a soft pulp is cud |