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Stomach
notes
9
Anatomy
Graduate
09/28/2011

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Cards

Term
Innervation of stomach
Definition
Sympathetic & parasympathetic
Term
Sympathetic innervation of stomach:
Definition
1) Pre-ganglionic
- Greater & lesser splanchnic

2) Post-ganglionic
- leave celiac ganglia into L & R plexi, common hepatic plexus, splenic plexus

3) stimulates vasoconstriction (inc. portal vein)

4) decreases gastric motility

5) causes splenic contraction
Term
Parasympathetic innervation of stomach:
Definition
1) Ant. & post. vagal trunks

2) Ant.
- 3 branches
- celiac
- ant. gastric nerves
- lesser curvature (HGL)
- hepatic nerves
- right across HGL
- joins proper hepatic
- form hepatic & cystic plexi

3) post.
- 2 branches
- Post. gastric branch
- lesser curvature in HGL
- celiac branch (larger)
Term
4 parts of stomach:
Definition
1) cardia

2) fundus

3) corpus/body

4) pylorus
Term
What muscle layer forms the pyloric sphincter? What type of sphincter is it?
Definition
1) Middle circular layer

2) True sphincter
Term
What are the two types of stomach?
Definition
1) J-shaped

2) horizontal
Term
What layers of the stomach form the rugae?
Definition
1) Mucosa & submucosa
Term
What is the serosa of the stomach?
Definition
1) visceral peritoneum
Term
What does the inner oblique layer do?
Definition
1) Helps form the gastric canal

2) unique to stomach
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