61. |
gastric pit
|
narrow channel formed by the epithelial lining of the stomach mucosa |
62. |
gastrin
|
peptide hormone that stimulates secretion of hydrochloric acid and gut motility |
63. |
gastrocolic reflex
|
propulsive movement in the colon activated by the presence of food in the stomach |
64. |
gastroileal reflex
|
long reflex that increases the strength of segmentation in the ileum |
65. |
gingiva
|
gum |
66. |
haustral contraction
|
slow segmentation in the large intestine |
67. |
haustrum
|
small pouch in the colon created by tonic contractions of teniae coli |
68. |
hepatic artery
|
artery that supplies oxygenated blood to the liver |
69. |
hepatic lobule
|
hexagonal-shaped structure composed of hepatocytes that radiate outward from a central vein |
70. |
hepatic portal vein
|
vein that supplies deoxygenated nutrient-rich blood to the liver |
71. |
hepatic sinusoid
|
blood capillaries between rows of hepatocytes that receive blood from the hepatic portal vein and the
branches of the hepatic artery |
72. |
hepatic vein
|
vein that drains into the inferior vena cava |
73. |
hepatocytes
|
major functional cells of the liver |
74. |
hepatopancreatic ampulla
|
(also, ampulla of Vater) bulb-like point in the wall of the duodenum where the bile duct and main
pancreatic duct unite |
75. |
hepatopancreatic sphincter
|
(also, sphincter of Oddi) sphincter regulating the flow of bile and pancreatic juice into the duodenum |
76. |
hydrochloric acid
|
(HCl) digestive acid secreted by parietal cells in the stomach |
77. |
ileocecal sphincter
|
sphincter located where the small intestine joins with the large intestine |
78. |
ileum
|
end of the small intestine between the jejunum and the large intestine |
79. |
incisor
|
midline, chisel-shaped tooth used for cutting into food |
80. |
ingestion
|
taking food into the GI tract through the mouth |
81. |
internal anal sphincter
|
involuntary smooth muscle sphincter in the anal canal |
82. |
intestinal gland
|
(also, crypt of Lieberkhn) gland in the small intestinal mucosa that secretes intestinal juice |
83. |
intestinal juice
|
mixture of water and mucus that helps absorb nutrients from chyme |
84. |
intestinal phase
|
phase of gastric secretion that begins when chyme enters the intestine |
85. |
intrinsic factor
|
glycoprotein required for vitamin B12 absorption in the small intestine |
86. |
jejunum
|
middle part of the small intestine between the duodenum and the ileum |
87. |
labial frenulum
|
midline mucous membrane fold that attaches the inner surface of the lips to the gums |
88. |
labium
|
lip |
89. |
lactase
|
brush border enzyme that breaks down lactose into glucose and galactose |
90. |
lacteal
|
lymphatic capillary in the villi |