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65 Cards in this Set

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chemical breakdown of food into small organic fragments suitable for absorbtion by digestive epithelium
digestion
double sheets of peritoneal membrane
mesentaries
stabilize the position of the attached organs
mesentaries
prevent intestines from being entangled during digestion movements or changes in body position
mesentaries
mucus membrane consisting of epithelium, moistened by glandular secretions, lamina propria of areolar tissue
Mucosa
simple columnar epitheial contains _____ _____
goblet cells
the stomach, small intestine, and entire lenght of large intestine
covered with mucosa
alter hte shape of lumen and move epithelial pleats and folds
lamina propria
large blood and lymphatic vessels
submucosa
plexus of Meissner
submucosal plexus; sensory neurons, parasympatheic ganglion neurons, sympathetic post ganglionis fibers that innervate the mucosa and submucosa
Myenteric Plexus is also known as
plexus of Auerbach
network of paracympatheitc ganglia; sensory neurons; interneurons; sympathetic postganglionic fibers
Myenteric Plexus + plexus of Auerbach
location of plexus of Auerbach + Myenteric Plexus
lies sandwiched between the circular and longitudional muscle layers
Myenteric Plexus contains the _________
serosa
muscular layers of the digestive tract has which tissue?
visceral, smooth tissue
undergo spontaneous depolarization, contraction triggers a wave that travels throughout the entire muscle
smooth muscle cells undergo spontaneous generation
wave of muscular contractions that move a bolus
peristalsis
movements that churn and fragment the bolus mixing the contents with intestinal secretions
segmentation
lateral walls of the oral cavity
cheeks
supported by pads or fat and the buccinator muscles
mucosae of the cheeks
space between the cheeks and teeth
vestubule
pasageway between the oral cavity and oropharynx
fauces
contents of tooth consists of ____
mineralized matrix that is similar to the bone
makes teeth differnt from bone in that is contains_____
dentin
narrow tunnel located at the root; base of the tooth
root canal
pupl cavity revceives the bloos and nerves from the ____
root canal
covers the dentin of the root
cementum
provides protection; anchor teh periodontal ligament
cementum
dentin of the crown is covered by ______
enamel
blade shaped, at front of mouth, clipping or cutting
incisors
canines, conical, charp ridgeline, pointed tip, tearing or shashing
cuspids
large flattened crowns, prominent ridges, crush and grind
molars
hollow muscular tube; length- 25 cm, diameter-2 cm (at widest point)
esophagus
rexaled stomach, mucosa is thrown into _____
rugae
allow the gastirc lumen to expand
rugae
parietal cells secrete
HCL
cheif cells are located ...
near th ebase of the gastric gland
cheif cells secrete
pepsinogen
an in active proenzyme
pepsinogen
Pepsinogen is converted to ...
pepsin
an active proteolytic enzyme
pepsin
stomachs of new born infants produce ...
rennin (chymosin) and gastric lipase --> important for milk digestion
enteroendocrine cells; produce seven hormones inclusing gastrin
pyloric glands
g-cells produce this hormone
gastrin
stimulates the secretion of both parietal and cheif cells
gastrin
contraction of hte gastric waqll that mix and stir the gastric contents
gastrin
final segment of the small intestine; longest (3.5 meters)
ileum
the sphincter that controls th eflow of materials from the ileum to the cecum of the large intestine
ileocecal valve
intestinal lining that has a series of tranverse folds, permanent, 800, increases abosrbtion
plicase or plicase circulares
lacteal transport materials are unabl;e to
enter blood capillaries
when chyme arrives in the duodenum...
secretin is released
marks the division between the left lobe and the right lobe
falciform ligament
number of lobes that the liver has
4
the basic functional units of the liver
liver lobules
funtions fo teh gall bladder
1- bile storage, 2- bile modification
is secreted continously
bile
bile is only released into the duodenum by CCK
bile
functions of the large intestine
reabsorbtion of water; compacting materials; absorbtion of important vitamins; storage of fecal matreial
three separate longitudional bands of smooth muscle
taeniae coli
location of taeniae coli
outer surface of colon, just deep to the serosa
colon bends to the left at the....
hepatic flexure (colic flexure)
hepatic flexure marks
the end of teh ascending oclona nd the beginning of the transverse colon
expandable organ for the storage of fecal material, last 15 cm
rectum
carbohydrate digestion begins at the
mouth during mastication
the _____ and _____ glands secrete salivary amylase for carb digestion
parotid and submandibular