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The small intestine consists of three specific regions:
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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.
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Anatomy Ch. 26.2

Ch. 26.2 Digestive System

QuestionAnswer
The small intestine consists of three specific regions: duodenum, jejunum, and ileum
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. duodenum
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. jejunum
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. ileum, ileocecal valve
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. circular folds
__ are fingerlike projections of mucosa. They help increase the surface area for absorption and secretion. Each __ contains an arteriole, a rich capillary network, and a venule (and lacteal). villi, villus
A __ is a type of lymphatic capillary also within the villus. It is responsible for absorbing lipids and lipid-soluble vitamins that are too large to be absorbed by the blood capillaries. lacteal
External or posterior to the peritoneum. retroperitoneal
Location of a structure or organ that is completely covered with visceral peritoneum. intraperitoneal
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. large intestine
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. large, small
The large intestine has a diameter of __ inches and an approximate length of __ feet from its origin at the ilocecal junction to its termination at the anus. It comprises three major regions: 2.5 in; 5 ft; cecum, colon, rectum
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: colon; ascending, transverse, descending, sigmoid
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. ascending colon
As the ascending colon approaches the inferior surface of the liver, it makes a 90-degree turn toward the left side and anterior region of the abdominal cavity. This bend in the colon is called the __ __ __ or hepatic flexure. right colic flexure
The __ __ originates at the right colic flexure and curves slightly anteriorly as it projects horizontally to the left across the anterior region of the abdominal cavity. It is intraperitoneal. transverse colon
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. left colic flexure
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. descending colon
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. sigmoid colon
The __ has both endocrine and exocrine functions. __ cells produce and secrete hormones such as insulin and glucagon. __ cells (acinar cells) produce pancreatic juice to assist with digestive activities. The __ drains into the duodenum. pancreas, endocrine, exocrine, pancreas
In the pancreas the __ __ aids digestion and neutralizes acidic product from the stomach. pancreatic juice
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. liver
The __ is the largest internal organ, weighing about 2-4lbs. It stores excess nutrients and releases when needed. liver
Attached to inferior surface of the liver, the __ or cholecyst, is a saclike organ that stores, concentrates, and releases bile that the liver produces. It has 3 tunics: mucosa, muscularis, serosa. The _ _ connects the gallbladder to the common bile duct. gallbladder, cystic duct
Structural and functional units of liver are called __ lobules. hepatic
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. biliary apparatus
The union of the cystic duct from the gallbladder and the common hepatic duct forms the __ __ duct that extends inferiorly to the duodenum. common bile
The __ __ carries bile from the liver and gallbladder to the duodenum. biliary apparatus
Created by: khinson
 

 



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