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GI Tract
GI Tract
41
Anatomy
Undergraduate 2
10/23/2012

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Term
What are the two groups of digestive organs?
Definition
The Alimentary Canal
The Accessory digestive organs
Term
what is the Alimentary canal
Definition
a continuous tube the digests and abosorbs nutrients
Term
what is considered accesory muscles?
Definition
tongue, salivary glands, teeth, live, gall bladder, pancreas
Term
what are the six digestive process?
Definition
1. ingestion
2.mechanical digestion (chew)
3. Propulsion ( move food along)
4. chemical digestion
5. Absorption
6. defecation (poop)
Term
what does the tongue do?
Definition
mixes food (mastication)
formation on food bolus
intitation of swallowing
of course taste
Term
how many pairs of salivary glands are there?
Definition
3 pairs
Term
what are the different types of salivary glands?
Definition
1. parotid glands
2. submandibular glands
3. sublingual glands
Term
what controls salvation?
Definition
parasypathetic system.
Term
how many primary teeth do we have?
Definition
20 deciduous teeth
Term
what is the little thing under your tongue, to keep it from moving around?
Definition
frenulum
Term
how many perment teeth do we have? 12/24/32?
Definition
32
Term
how many incisors are there?
Definition
4 upper/ 4 lower
Term
chow many canine teeth do we have?
Definition
2 sets,
Term
chow many canine teeth do we have?
Definition
2 sets,
Term
what do premolar teeth do>
Definition
grind or crushing food
Term
what is a pulp cavity?
Definition
central cavity srrounded by dentin that contain blood vessels and nevers
Term
what is periodontits?
Definition
advanced gingivitis.
Term
what is the number 1 reason for tooth loss?
Definition
periodontits
Term
what does the symapthetic stimulation salvation do?
Definition
makes people have dry mouth
Term
what are the four basic layers of the GI tube?
Definition
Mucosa
Submucosa
Muscularis Enterna
Serosa
Term
What is the epithelial lining of the GI tract?
Definition
Muscosa
Term
how many layers are in the mucosa?
Definition
epitheal lining (absorption and barrier against infection
Lamina propria (contains capillaries and MALT lymphoid tissue
Muscularis mucosae ( thin muscle layer that produce local movement of GI lining
Term
what is the strongest thing in the body?
Definition
enamel
Term
where is the tooth made?
Definition
dentin
Term
what happens in the Submucosa?
Definition
it has scattered glands, and submucosal nerve plexus controls secretion and the muscle in the muscosa
Term
is the tooth attached to a joint? T/F
Definition
T
Term
what does the Muscularis Externa do?
Definition
it is responsible for mixing and moving food along types of muscle movements.
Term
what is the movement of food down your esophagus called?
Definition
peristalsis and segmentation
Term
what is serosa
Definition
outer covering of the esophagus
Term
what type of muscles are in the esophagus?
Definition
skeletal muscles superior 1/3
inferior 1/3 smooth muscle
Term
what in the body helps with acid reflux, heart burn.
Definition
a sphincter at the opening of the stomach
Term
what is the serous membrane of the abdominal cavity?
Definition
Peritoneum
Term
what is the Parietal peritoneum?
Definition
external surface of the digestive organs
Term
what lines the abnominal wall?
Definition
Parietal Peritoneum
Term
what lines the abnominal wall?
Definition
Parietal Peritoneum
Term
what supports the abdominal organs?
Definition
mesentery = a double layer of peritoneum also called the omentum
Term
what is the blood called that is going to the GI tract?
Definition
splanchnic circulation "recieves up to 25% of cardiac output
Term
what supplies the hepatic, splenic and left gastric?
Definition
the Celiac artery
Term
what supplies the large intestine?
Definition
Inferior mesenteric artery
Term
what supplies blood to the small intenstines?
Definition
Superior mesenteric artery
Term
what are the stomach gross anatomy?
Definition
cardiac region- cardia
fundus -dome shaped region under the diaphram
body- mid portion
pyloroc region (duodenum)
greater curvature (convex lateral surface)
lesser curvature (concave medial surface)
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