Ch. 26.2 Digestive System
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| The small intestine consists of three specific regions: | show 🗑
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| The __ forms the 1st segment of small intestine. It's about 10 in. long and originates at the pyloric sphincter. It's arched into a C-shape around the head of the pancreas. It receives accessory gland secretions from the liver, gallbladder, and pancreas. | show 🗑
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| The __ is the middle region of the small intestine and is about 7.5 feet long (makes up about 2/5 of small intestine's total length). Primary region for chemical digestion and nutrient absorption. | show 🗑
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| The __ is the last region of the small intestine and is about 10.8 ft in length (forms about 3/5 of small intestine). Its distal end terminates at __ __, a sphincterthat controls entry of materials into lg intestine. | show 🗑
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| The mucosal and submucosal tunics of the small intestine are thrown into internal __ __ or plicae circulares that extend inward toward the lumen. They help increase the surface area through which nutrients are absorbed and slow down food propulsion. | show 🗑
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| show | villi, villus
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| show | lacteal
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| External or posterior to the peritoneum. | show 🗑
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| Location of a structure or organ that is completely covered with visceral peritoneum. | show 🗑
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| The __ __ also called the large bowel is a relatively wide tube that is shorter than the small intestine. Located w/in abdominal pelvic cavity. Its diameter is greater than that of the small intestine. | show 🗑
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| The __ intestine absorbs water and electrolytes from the remaining digested material that enters into it from the __ intestine. The watery chyme that enters the large intestine solidifies and is compacted into feces or fecal material. | show 🗑
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| show | 2.5 in; 5 ft; cecum, colon, rectum
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| At the level of the ileocecal valve, the second region of the large intestine, the __, begins and forms an inverted U-shaped arch. It's partitioned into four segments: | show 🗑
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| The __ __ originates at the ileocecal valve and extends superiorly from the superior edge of the cecum along the right lateral border of the abdominal cavity. It is retroperitoneal. | show 🗑
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| show | right colic flexure
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| show | transverse colon
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| As the transverse colon approaches the spleen, it makes a 90-degree turn inferiorly and posteriorly. The resulting bend in the colon is called the __ __ __ or splenic flexure. | show 🗑
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| The __ __ is retroperitoneal and located along the left side of the abdominal cavity and slightly posterior. It originates at the left colic flexure and descends vertically to the sigmoid colon. | show 🗑
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| The __ __ is S-shaped. It originates at the sigmoid flexure and turns inferomedially into the pelvic cavity. It is intraperitoneal and terminates at the rectum. | show 🗑
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| show | pancreas, endocrine, exocrine, pancreas
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| show | pancreatic juice
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| The __ is located in the right upper quandrant, immediately inferior to the diaphragm. Its main function in digestion is the production of bile (breaks down fat for chemical digestion). It detoxifies drugs and poisons. | show 🗑
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| show | liver
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| show | gallbladder, cystic duct
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| Structural and functional units of liver are called __ lobules. | show 🗑
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| The __ __ is a network of thin ducts that include the left and right hepatic ducts which drain the left and right lobes of the liver. The left/right hepatic ducts merge to form single common hepatic duct. | show 🗑
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| The union of the cystic duct from the gallbladder and the common hepatic duct forms the __ __ duct that extends inferiorly to the duodenum. | show 🗑
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| show | biliary apparatus
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