Final CH25 Digestive

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issacgoboom
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Final CH25 Digestive
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2013-07-22 18:31:22
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  1. Nutrition requires
    • getting nutrients: musculo-skeletal
    • digesting nutrients: digestive
    • transporting nutrients: circulatory
  2. alimentary canal
    gastrointestinal tract
  3. Hollow organs of digestive system
    • mouth
    • pharynx
    • esophagus
    • stomach
    • small intestine
    • largieintestine
    • rectum
  4. accessory organs
    • aid digestion
    • teeth
    • tongue
    • salivary glands
    • liver
    • gallbladder
    • pancreas
  5. digestive system functions
    • move food: swallow
    • digest food: produce chemicals for digestion
    • absorption: get nutrients into the blood
  6. peristalsis
    swallowing
  7. Peritoneum parts
    • parietal peritoneum
    • visceral peritoneum
    • retroperitoneal
  8. Mesenteries meaning
    double layers of visceral peritoneum extending between organs and to the abdominal wall.
  9. Lesser omentum
    • messentery
    • liver to stomach
  10. greater omentum
    • mesentary
    • inferior from stomach
  11. mesentary proper
    • mesentary
    • small intestine to small intestine
  12. mesocolon
    • mesentary
    • large intestine to large intestine
  13. falciform ligament
    • mesentary
    • whithin liver and from liver to diaphragm
  14. Buccal cavity
    oral cavity
  15. soft palate
    part of the oral cavity
  16. labial frenulum
    connects lip to gum
  17. uvula
    prevents food from going to nasal cavity
  18. lingual frenulum
    connects to floor of mouth
  19. tongue tied
    short lingual frenulum
  20. decidious (milk) teeth
    primary dentition (20 teeth)
  21. adult teeth
    permanent dentition (32 teeth)
  22. dentin
    bone + collagen
  23. crown
    visible area
  24. enamel
    • part of the crown
    • hard mineral crystals
  25. root
    within bones
  26. where in the tooth are nerves and blood vessels
    root canal + pulp cavity
  27. periodontal ligament
    anchors into bone
  28. gingiva
    gums
  29. saliva content
    • mostly water
    • salivary amylase
  30. salivary amylase
    • digestive enzymes
    • break down starches and carbs
  31. name salivary glands
    • parotid gland
    • sublingual gland
    • submandibular gland
  32. pharynx parts
    • oropharynx
    • laryngopharynx
    • pharyngeal constrictor muscles
  33. layers of alimentary canal
    • mucosa
    • submucosa
    • muscularis externa
    • outer covering (serosa, adventitia)
  34. Mucosa
    • mucuous membrane
    • epithelium + connective tissue
  35. epithelium in mucosa
    contact lumen
  36. Esophagus epithelial tissue
    stratified squamous epithelium
  37. Anal canal tissue
    stratified squamous epithelium
  38. Stomach epithelial tissue
    simple columnar epithelium
  39. intestines epithelial tissue
    simple columnar epithelium
  40. connective tissue layer of mucosa
    lamina propria
  41. lamina propria tissue
    • loose connective tissue
    • contains blood and lymph capillaries
  42. smooth muscle of mucosa
    muscularis mucosae
  43. Submucosa contents
    • areolar; elastic c.t.
    • blood, lymph vessels
    • nerves
  44. nerves in submucosa
    ANS; enteric nervous system
  45. Muscularis externa
    responsible for peristalsis
  46. Peristalsis
    swallowing
  47. Serosa
    outer covering of alimentary canal
  48. Adventitia
    outer covering of alimentary canal
  49. eosphagus tissue
    stratified squamous epithelium
  50. Esophagus muscls
    • skeletal muscle
    • smooth muscle
  51. Esophagus sphincters
    • upper esophageal sphincter
    • gastroespohageal sphincter
  52. gatroesophageal sphincter also known as
    cadiac sphincter
  53. GERD
    • gastroesophageal reflux disease
    • gastroesophageal sphincter doesn't properly close
  54. Esophageal hiatus
    • hole in the diaphragm
    • esophagus passes through it
  55. Hiatal Hernia
    upper part of the stomach protrudes through the weakened diaphragm wall.
  56. Stomach parts
    • cardia
    • fundus
    • body
    • pyloric region
    • pyloric sphincter
    • greater curvature
    • lesser curvature
    • rugae
  57. Stomach cardia
    • cardiac orifice
    • cardiac sphincter
  58. Gastric pits epithelium
    simple columnar epithelium
  59. gastric gland cells
    • chief cells
    • pareietal cells
    • G cells
  60. how many layers in mucularis externa
    3 layers
  61. outer layer of stomach
    serosa
  62. stomach tissue parts
    • gastric pits
    • gastric glands
    • muscularis externa
    • serosa
  63. How long is small intestine
    8-13 feet long
  64. Small intestine job
    • chemical digestion
    • absorption
  65. chemical digestion in small intestine
    • produces enzymes
    • receives enzymes from pancreas and liver
  66. where does most absorption occur
    small intestine
  67. small intestine parts
    • duodenum
    • jejunum
    • ileum
  68. duodenum
    1st 10 inches of small intestine
  69. jejunum
    proximal 1/2 of small intestine
  70. ileum
    distal 1/2 of the small intestine
  71. Duodenal papilla
    part of the small intestine
  72. hepatopancreatic ampulla
    • part of the small intestine
    • secretions from pancreas and liver
  73. ileocecal valve
    • part of small intestine
    • connect to large intestine (cecum)
  74. Plicae circulares
    • circular folds of entire wall to increase absorption
    • small intestine
  75. villi
    • smaller folds of plicae
    • increases absorption
    • small intestine
  76. microvilli
    • folds of cell membrane¬†
    • small intestine
  77. mucosa w/villi
    • simple columnar epithelium w/ microvilli
    • absorbs digested nutrients
    • produces enzymes
  78. goblet cells
    produce mucus
  79. lamina propria
    areolar ct + capillaries + lacteals
  80. enteroendocrine cells
    produce hormones in intestinal crypts
  81. submucosa contains
    • duodenal glands
    • peyer's patches
  82. duodenal glands
    • in submucosa
    • aka Brunner's glands
    • secrete bicarbonate
  83. peyer's patches
    • in submucosa
    • lymphoid nodules
  84. How many layers of muscularis externa
    2 layers
  85. Large intestine is...
    colon
  86. Large intestine functions
    • absorb H2O, vitamins
    • produce Vit K, Vit B's
  87. e. coli
    • normal flora in large intestine
    • produces Vit K, Vit B's
  88. Teniae coli
    • 3 longitudinal strips of thick muscle¬†
    • large intestine
  89. haustra
    • sections along length of colon
    • large intestine
  90. Large intestine parts
    • cecum
    • colon
    • rectum
    • anal canal
  91. Cecum parts
    • in large intestine
    • ileocecal valve
    • appendix
  92. colon parts
    • in large intestine
    • ascending colon
    • right colic (hepatic) flexure
    • transverse colon
    • left colic (splenic) flexure
    • descending colon
    • sigmoid colon
  93. anal sphincters
    in anal canal
  94. Large intestine epithelium
    • simple columnar epithelium
    • many goblet cells
    • no villi
  95. rectum tissue
    • simple columnar epithelium
    • thick longitudinal muscle
  96. anal canal tissue
    stratified squamous epithelium
  97. Liver lobes
    • R&L lobe
    • Quadrate lobe
    • Caudate lobe
  98. Liver digestion function
    • produces bile salts
    • emulsifies fats
  99. Hilum
    • aka porta hepatis
    • area where vessels connect to liver
  100. Porta hepatis parts
    • aka hilum
    • hepatic portal vein
    • hepatic artery
    • hepatic ducts
  101. Falciform ligament
    • Liver
    • Divides R&L lobe

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