Human Anatomy Chapter 26 Digestive Sysstem

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dahotstuff30
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Human Anatomy Chapter 26 Digestive Sysstem
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2015-05-05 09:55:47
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ingstion secretion tongue peristalsis
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Human Anatomy Chapter 26 Digestive Sysstem
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  1. The main functions of the digestive system are

    A)ingestion and digestion
    B)propulsion and secretion
    C)absorption and elimination
    D)all of the above
    D)all of the above
  2. The movement of digestion products, electrolytes, vitamins, and water across the GI tract epithelium and into the underlying blood and lymphatic vessels is called

    A)ingestion
    B)digestion
    C)secretion
    D)absorption
    D)absorption
    (this multiple choice question has been scrambled)
  3. All of the following are organs of the digestive system except the

    A)esophagus
    B)tongue
    C)liver
    D)spleen
    D)spleen
    (this multiple choice question has been scrambled)
  4. Which selection includes only accessory digestive organs?

    A)salivary glands, thyroid gland, pancreas, liver
    B)liver, thyroid gland, gallbladder, spleen
    C)stomach, duodenum, pancreas, gallbladder
    D)gallbladder, liver, pancreas, salivary glands
    D)gallbladder, liver, pancreas, salivary glands
    (this multiple choice question has been scrambled)
  5. Movements in the small intestine that churn the materials being digested and mix them with intestinal secretions are called

    A)peristalsis
    B)pendular motility
    C)segmentation
    D)haustral churning
    C)segmentation
    (this multiple choice question has been scrambled)
  6. Which term describes the wave of muscular contraction that moves material through the GI tract toward the anus?

    A)haustral churning
    B)segmentation
    C)pendular motility
    D)peristalsis
    D)peristalsis
    (this multiple choice question has been scrambled)
  7. Digestive functions of the tongue include

    A)manipulating and mixing ingested materials during chewing
    B)helping compress partially digested food to form a bolus
    C)assisting in the swallowing process
    D)all of the above
    D)all of the above
  8. The three pairs of multicellular salivary glands that secrete into the oral cavity are the ____________ glands.

    A)parotid, submandibular, and sublingual
    B)serous, mucous, and mixed
    C)palatine, lingual, and pharyngeal
    D)alpha, beta, and gamma
    A)parotid, submandibular, and sublingual
    (this multiple choice question has been scrambled)
  9. What is the mineralized matrix, similar to bone but harder, that forms the primary mass of each tooth?

    A)pulp
    B)dentin
    C)enamel
    D)cementum
    B)dentin
    (this multiple choice question has been scrambled)
  10. Which selection doesnot correctly pair a type of tooth with its description?

    A)canines, one root and conical with a pointed tip
    B)incisors, one or two roots and spoon-shaped
    C)premolars, one or two roots and flat crowns with cusps
    D)molars, three or more roots and large, broad, flat crowns
    B)incisors, one or two roots and spoon-shaped
    (this multiple choice question has been scrambled)
  11. Which mesentery covers most of the abdominal organs, extending inferiorly like an apron from the greater curvature of the stomach?

    A)mesentery proper
    B)greater omentum
    C)mesocolon
    D)lesser omentum
    B)greater omentum
    (this multiple choice question has been scrambled)
  12. From deep to superficial, what are the tunics of the intraperitoneal portions of the GI tract?

    A)mucosa, submucosa, muscularis, and serosa
    B)mucosa, submucosa, muscularis, and adventitia
    C)serosa, muscularis, submucosa, and mucosa
    D)adventitia, muscularis, submucosa, and mucosa
    A)mucosa, submucosa, muscularis, and serosa
    (this multiple choice question has been scrambled)
  13. In which of the following selections are the GI tract organs or regions correctly matched with the type of epithelium that lines them?

    A)cecum, colon, and rectum; simple columnar
    B)stomach and small intestine; stratified squamous
    C)oral cavity and esophagus; stratified cuboidal
    D)all of the above
    A)cecum, colon, and rectum; simple columnar
    (this multiple choice question has been scrambled)
  14. Within the mucous membrane of the GI tract, the layer of areolar connective tissue is called the

    A)mucosal lining
    B)muscularis mucosae
    C)lamina propria
    D)submucosa
    C)lamina propria
    (this multiple choice question has been scrambled)
  15. Which tunic of the GI tract typically contains an inner circular layer and an outer longitudinal layer, with the myenteric nerve plexus in between?

    A)adventitia
    B)submucosa
    C)muscularis
    D)mucosa
    C)muscularis
    (this multiple choice question has been scrambled)
  16. The esophagus enters the abdominal cavity through an opening in the diaphragm, the ____________, before it connects to the stomach.

    A)esophageal hiatus
    B)thoracic canal
    C)cardiac orifice
    D)diaphragmatic foramen
    A)esophageal hiatus
    (this multiple choice question has been scrambled)
  17. Histological features of the esophageal wall include

    A)an outer fibrous layer, the adventitia, with no serosa
    B)submucosal glands that produce a thin, watery fluid
    C)a single layer of skeletal muscle in the muscularis
    D)a mucosa lined with stratified cuboidal epithelium
    A)an outer fibrous layer, the adventitia, with no serosa
    (this multiple choice question has been scrambled)
  18. What are the three phases of the swallowing process?

    A)voluntary, pharyngeal, and esophageal
    B)cardiac, gastric, and pyloric
    C)mastication, eruption, and dentition
    D)oral, cranial, and pharyngeal
    A)voluntary, pharyngeal, and esophageal
    (this multiple choice question has been scrambled)
  19. Which digestive organ mechanically and chemically transforms a food bolus into chyme?

    A)small intestine
    B)large intestine
    C)stomach
    D)esophagus
    C)stomach
    (this multiple choice question has been scrambled)
  20. Which list proceeds from the superior to the inferior end of the stomach?

    A)cardia, body, fundus, pylorus
    B)body, cardia, pylorus, fundus
    C)pylorus, fundus, cardia, body
    D)cardia, fundus, body, pylorus
    D)cardia, fundus, body, pylorus
    (this multiple choice question has been scrambled)
  21. The prominent folds of the mucosa that nearly disappear when the stomach expands are the

    A)plicae
    B)gastric pits
    C)omenta
    D)rugae
    D)rugae
    (this multiple choice question has been scrambled)
  22. From the superior end downward, the three segments of the small intestine are the

    A)jejunum, ileum, and duodenum
    B)duodenum, jejunum, and ileum
    C)duodenum, ileum, and jejunum
    D)ileum, duodenum, and jejunum
    B)duodenum, jejunum, and ileum
    (this multiple choice question has been scrambled)
  23. What is the function of the villi in the small intestine?

    A)to decrease the amount of exposed surface
    B)to sweep particles across the surface with wavelike actions
    C)to increase the surface area for absorption and secretion
    D)to facilitate enzyme retention and dispersal
    C)to increase the surface area for absorption and secretion
    (this multiple choice question has been scrambled)
  24. Which sequence lists the regions of the large intestine in order, from the end of the ileum to the anus?

    A)colon, cecum, rectum, anal canal
    B)cecum, colon, rectum, anal canal
    C)cecum, rectum, anal canal, colon
    D)colon, rectum, anal canal, cecum
    B)cecum, colon, rectum, anal canal
    (this multiple choice question has been scrambled)
  25. Arrange the segments of the colon in the sequence through which digested material passes prior to defecation: (1) sigmoid (2) transverse (3) descending (4) ascending

    A)1, 3, 4, 2
    B)2, 1, 4, 3
    C)4, 2, 3, 1
    D)3, 1, 2, 4
    C)4, 2, 3, 1
    (this multiple choice question has been scrambled)
  26. The mucosa of the large intestine is characterized by

    A)lack of intestinal villi
    B)numerous goblet cells and intestinal glands
    C)many lymphatic nodules and cells in the lamina propria
    D)all of the above
    D)all of the above
  27. Production of bile is one of several important functions of the

    A)liver
    B)small intestine
    C)gallbladder
    D)pancreas
    C)gallbladder
    (this multiple choice question has been scrambled)
  28. Bile is stored and concentrated in the

    A)liver
    B)duodenum
    C)gallbladder
    D)biliary apparatus
    C)gallbladder
    (this multiple choice question has been scrambled)
  29. Which hormones stimulate the production of pancreatic juice and bicarbonate?

    A)cholecystokinin and secretin
    B)gastrin and insulin
    C)insulin and glucagon
    D)angiotensin and epinephrine
    A)cholecystokinin and secretin
    (this multiple choice question has been scrambled)
  30. Age-related changes in the digestive system include which of the following?

    A)reduced secretion of mucin, enzymes, and acid
    B)decreased replacement of epithelial cells
    C)diminished muscular tone and GI tract motility
    D)all of the above
    D)all of the above
  31. On each maxilla and each side of the mandible, both the deciduous and permanent dentitions typically include two ____________ for slicing or cutting into food.

    A)canines
    B)premolars
    C)incisors
    D)molars
    C)incisors
    (this multiple choice question has been scrambled)
  32. Unique to the permanent dentition, the two pairs of ____________ on each jaw are used for crushing and grinding food.

    A)molars
    B)wisdom teeth
    C)premolars
    D)canines
    C)premolars
    (this multiple choice question has been scrambled)
  33. Which statement doesnot accurately describe an aspect of swallowing?

    A)actions are primarily involuntary until the bolus reaches the oropharynx
    B)third phase involves involuntary control of both skeletal and smooth muscle
    C)soft palate, uvula, and pharyngeal constrictors participate in second phase
    D)first phase occurs in oral cavity and involves the tongue and hard palate
    A)actions are primarily involuntary until the bolus reaches the oropharynx
    (this multiple choice question has been scrambled)
  34. Which salivary glands empty into the oral cavity through single ducts on each side of the lingual frenulum, posterior to the incisors?

    A)parotid
    B)submandibular
    C)sublingual
    D)all of the above
    B)submandibular
    (this multiple choice question has been scrambled)
  35. Which salivary glands are located subcutaneously, offering a good environment for a once-common childhood virus that is now largely controlled by vaccination?

    A)sublingual
    B)submandibular
    C)parotid
    D)all of the above
    C)parotid
    (this multiple choice question has been scrambled)
  36. Submucosal nerve plexus is to submucosa as ____________ nerve plexus is to muscularis.

    A)myenteric
    B)autonomic
    C)Meissner
    D)celiac
    A)myenteric
    (this multiple choice question has been scrambled)
  37. Histologically, the stomach mucosa contains

    A)goblet cells that secrete a thick carpet of mucin over the surface
    B)a simple columnar epithelial lining, with numerous gastric pits
    C)an extra, inner layer of smooth muscle called the oblique layer
    D)all of the above
    B)a simple columnar epithelial lining, with numerous gastric pits
    (this multiple choice question has been scrambled)
  38. The ____________ is actually composed of ____________ peritoneum and is therefore found only on organs within the peritoneal cavity.

    A)serosa; visceral
    B)lesser omentum; visceral
    C)adventitia; parietal
    D)mesentery proper; visceral
    A)serosa; visceral
    (this multiple choice question has been scrambled)
  39. Portions of the GI tract outside the peritoneal cavity are surrounded by a layer of areolar connective tissue called the

    A)adventitia
    B)tunica albuginea
    C)mucosa externa
    D)serosa
    A)adventitia
    (this multiple choice question has been scrambled)
  40. Which selection correctly pairs a type of gastric epithelial cell with its secretion?

    A)enteroendocrine cell, somatostatin
    B)chief cell, hydrochloric acid
    C)parietal cell, pepsinogen
    D)mucous neck cell, alkaline mucin
    A)enteroendocrine cell, somatostatin
    (this multiple choice question has been scrambled)
  41. The production of acid and enzymes by the gastric mucosa can be controlled by

    A)sympathetic innervation
    B)parasympathetic innervation
    C)hormones from the mucosa itself
    D)all of the above
    D)all of the above
  42. Which hormone, produced by enteroendocrine cells in the stomach lining, stimulates other gland cells as well as smooth muscle fibers in the stomach wall?

    A)intrinsic factor
    B)gastrin
    C)secretin
    D)cholecystokinin
    B)gastrin
    (this multiple choice question has been scrambled)
  43. The digestive fluids that mix with chyme in the ____________ are secreted by ____________.

    A)stomach; the liver and pancreas
    B)duodenum; hepatocytes and cells of the pancreatic lobules and ducts
    C)biliary apparatus; the liver and gallbladder
    D)hepatopancreatic ampulla; hepatocytes and cells of the pancreatic islets
    A)stomach; the liver and pancreas
    (this multiple choice question has been scrambled)
  44. In the small intestine, the plicae circulares and villi provide

    A)attachments for mesenteries suspended from the dorsal body wall
    B)initiation of enterogastric reflexes that accelerate digestion
    C)increased surface area for the absorption of nutrient molecules
    D)intestinal contractions that churn and swirl the intestinal chyme
    C)increased surface area for the absorption of nutrient molecules
    (this multiple choice question has been scrambled)
  45. Dietary lipids and lipid-soluble vitamins too large to enter the bloodstream directly can first enter the ____________ by way of ____________.

    A)villi; canaliculi
    B)lymphatic system; lacteals
    C)biliary apparatus; the common bile duct
    D)common hepatic duct; cystic duct
    B)lymphatic system; lacteals
    (this multiple choice question has been scrambled)
  46. The mucosa of the ____________ is equipped with abundant, pea-sized or larger ____________ that help to protect it from encroaching bacteria.

    A)liver; hepatic sinusoids
    B)appendix; lymph nodes
    C)ileum; Peyer patches
    D)jejunum; lymphatic nodules
    C)ileum; Peyer patches
    (this multiple choice question has been scrambled)
  47. The hormones produced by the enteroendocrine cells of the intestinal glands include

    A)enterokinase and aminopeptidase
    B)secretin and cholecystokinin
    C)biliverdin and bilirubin
    D)pepsinogen and gastrin
    B)secretin and cholecystokinin
    (this multiple choice question has been scrambled)
  48. The ____________ reflex stimulates powerful, peristaltic-like contractions of the teniae coli that produce ____________, often during or just after a meal.

    A)gag; retching
    B)gastrocolic; mass movements
    C)gastroileal; haustral churning
    D)deglutition; segmentation
    B)gastrocolic; mass movements
    (this multiple choice question has been scrambled)
  49. Which ligament of the liver is the remnant of the fetal umbilical vein?

    A)falciform ligament
    B)coronary ligament
    C)ligamentum teres
    D)ligamentum venosum
    C)ligamentum teres
    (this multiple choice question has been scrambled)
  50. Between the skeletal and digestive systems, there are three types of ____________: one in osteons, one in ____________, and one within parietal cells of the gastric glands.

    A)canaliculi; spongy bone
    B)calcium compounds; spongy bone
    C)canaliculi; hepatic lobules
    D)calcium compounds; hepatic lobules
    C)canaliculi; hepatic lobules
    (this multiple choice question has been scrambled)
  51. Exocrine secretion by the pancreas is

    A)stimulated by the hormones cholecystokinin and secretin
    B)stimulated by parasympathetic activity via the vagus nerve
    C)inhibited by activity of the sympathetic division of the ANS
    D)all of the above
    A)stimulated by the hormones cholecystokinin and secretin
    (this multiple choice question has been scrambled)
  52. Where does most nutrient absorption occur?

    A)in the jejunum
    B)in the duodenum
    C)in the body of the stomach
    D)in the ileum and cecum
    A)in the jejunum
    (this multiple choice question has been scrambled)
  53. In the adult, the only remnants of the embryonic ventral mesentery are the

    A)ligamentum venosum and round ligament of the liver
    B)mesocolon and coronary ligament
    C)lesser omentum and falciform ligament
    D)greater omentum and mesentery proper
    C)lesser omentum and falciform ligament
    (this multiple choice question has been scrambled)
  54. What is the most likely cause of pernicious anemia (a chronic, progressive anemia of older adults), given that it can be successfully treated by administration of vitamin B12?

    A)chronic pancreatitis or gastroenteritis
    B)hemorrhage anywhere in the GI tract submucosa
    C)inadequate dietary intake of iron compounds
    D)defective parietal cells in the gastric glands
    D)defective parietal cells in the gastric gland
    (this multiple choice question has been scrambled)
  55. What do all of the popular medications for reflux esophagitis ("heartburn") and gastroesophageal reflux disease have in common?

    A)none is particularly effective at relieving symptoms in most patients
    B)they are all carcinogenic if taken for prolonged periods
    C)all work by reducing stomach acidity rather than preventing reflux
    D)all of the above
    C)all work by reducing stomach acidity rather than preventing reflux
    (this multiple choice question has been scrambled)
  56. Which organ is located in the right upper quadrant of the abdomen?

    A)appendix
    B)liver
    C)spleen
    D)descending colon
    B)liver
    (this multiple choice question has been scrambled)
  57. The _____ cells of the stomach secrete hydrochloric acid (HCI).

    A)chief
    B)mucous
    C)parietal
    D)enteroendocrine
    C)parietal
    (this multiple choice question has been scrambled)
  58. Material leaving the ascending colon next enters the

    A)transverse colon.
    B)sigmoid colon.
    C)descending colon.
    D)cecum.
    A)transverse colon.
    (this multiple choice question has been scrambled)
  59. Which of these organs is retroperitoneal?

    A)ileum
    B)stomach
    C)transverse colon
    D)descending colon
    D)descending colon
    (this multiple choice question has been scrambled)
  60. Sympathetic innervation of the GI tract is responsible for

    A)closing the pyloric sphincter.
    B)vasodilating the major digestive system blood vessels.
    C)stimulating peristalsis.
    D)stimulating secretion of the pancreatic acinar cells.
    A)closing the pyloric sphincter.
    (this multiple choice question has been scrambled)
  61. The _____ is derived from the cranial part of the primary intestinal loop.

    A)cecum
    B)appendix
    C)jejunum
    D)ascending colon
    C)jejunum
    (this multiple choice question has been scrambled)
  62. The main pancreatic duct merges with the _____, and their contents empty into the duodenum through the major duodenal papilla.

    A)left hepatic duct
    B)common bile duct
    C)cystic duct
    D)common hepatic duct
    B)common bile duct
    (this multiple choice question has been scrambled)
  63. Which statement is false about pancreatic juice?

    A)It is secreted through the main pancreatic duct into the duodenum.
    B)The juice has an alkaline pH.
    C)It is produced by the acinar cells of the pancreas.
    D)It is responsible for emulsifying (breaking down) fats.
    D)It is responsible for emulsifying (breaking down) fats.
    (this multiple choice question has been scrambled)
  64. The "living" part of a tooth is the

    A)enamel.
    B)pulp.
    C)cementum.
    D)dentin.
    B)pulp.
    (this multiple choice question has been scrambled)
  65. Most of the chemical digestion of our food occurs within the

    A)esophagus.
    B)pancreas.
    C)small intestine.
    D)large intestine.
    C)small intestine.
    (this multiple choice question has been scrambled)

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