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_____ develops as an outgrowth of embryonic liver.
Pancreas
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Describe the location of the pancreatic structure in lampreys and lungfishes.
Pancreatic cells are embedded in the intestinal wall.
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The exocrine gland portion synthesizes and secretes digestive enzymes such as _____, _____, _____, and _____.
- Pancreatic lipase
- Pancreatic amylase
- Trypsin
- Chymotrypsin
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The endocrine gland portion of the pancreas consists of scattered patches of cells called _____.
Islets of Langerhans
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In Islets of Langerhans alpha cells secrete ______ and beta cells secrete _____.
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_____ and _____ are the primary sites of digestion and absorption in most vertebrates.
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Surface area in the intestine varies greatly amoung vertebrates based on: _____ and _____.
- Type of food eaten
- Activity level/ metabolism
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Jawless fishes, elasmobranchs, primitive bony fishes have a simple straight tube, with internal surface area increased by a _____.
Spiral valve
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Amphibians and reptiles are first to show division of _____ and _____.
- Large intestine
- Small intestine
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In birds and mammals the intestine is much longer, it is the longest in _____ species.
herbivorous
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Intestinal villi continue into the large intestine in _____ but not _____.
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The mammalian small intestine is divided into three distinct regions based on _____.
Degree of vascularity and type and number of glands.
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What are the three regions of the mammalian small intestine?
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What is the function of the cecum?
sight of digestion of cellulose and absorption of fermentation products in non-ruminants.
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What is the function of the large intestine?
main site of water resorption and consolidation of feces.
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What is function of cloaca?
This is a chamber that receives excretory and reproductive ducts.
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What are the openings of the cloaca?
Cloacal aperature and anus
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In mammals the _____ is lost and is replaced by the rectum and urogenital passages.
cloaca
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