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Block 4 > Anatomy Of Stomach > Flashcards

Anatomy Of Stomach Flashcards

1
Q

Explain the first part of the duodenum

A
  • First part = first 5cm from gastrocluodenal junction
  • anteroom lateral of body of L1
  • on the transpylorio line
  • slightly mobile due to hepatocluoclena/ligament
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2
Q

Explain second part ot duodenum

A
  • 7-10cm long
  • Vertical
  • curves around heard of pancreas
  • descends along the right side of L1-L3
  • retroperitoneal
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3
Q

3rd part of duodenum

A

= horizontal 6-8cm
= crosses the body of L3
= retroperitoneal

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4
Q

4th part of duodenum

A
  • Runs vertical for 2.5cm-5cm to duodenojejenal junction
  • begins at the left of L3
  • rises superior as far asthe superior border L2
  • suspensors ligament of duodenum (ligament of treitz) extend from right crus of diaphragm
  • suspends duodenojejenal junction
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5
Q

Where does a duodenal ulcer mostly occur

A

On the the posterior wall of the superior part of duodenum

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6
Q

What other organs may become ad weren’t to the inflammed duodenum

A

Liver, gall bladder er and pancreas

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7
Q

Which vessel may be affected with a duodenal ulcer

A

Gastroduodenal arteries which lie posterior may become eroded resultin in severe haemorrhage

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8
Q

What is the blood supply and lymphatic drainage of duodenum

A
  1. gastroduodenal artery

2. Postenor pancreatiduodenal artery(superior and inferior)

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9
Q

Name two openings of duodenum

A

Major duodenal and minor duodenal papilla

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10
Q

Explain superior duodenal recess

A

Lies to the left upper end of the fourth part of duodenum behind the superior deodenojejenal peritoneum with its mouth facing down wards

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11
Q

Explain inferior duodenal recess

A

Lies a little bit behind the superior and behind the duodenojejenal peritoneum fold with its orifice facing upwards

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12
Q

Explain the para duodenal recess

A

Is the lowest when present = lies to the left of the 4th part of the duodenum behind the paraduodenal fold of peritoneum its orifice faces medially it contains the IMV in its free border

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13
Q

Explain the retroduodenal recess

A

Largest it present = lies behind the 3rd and 4th part of the duodenum and crifice locks downward and to the left

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14
Q

Explain Cardiac part of stomach

A

= deep to 7th costal cartilage, 2.5cm to the left of the midline

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15
Q

Explain pylorus part of stomach

A

= on transpyloric plane 2.5cm to the right of the midline

= vertebral height L1/L2

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16
Q

Explain fundus of stomach

A

= Superior of a plane that extends horizontally from the cardia

17
Q

Explain body of stomach

A

= lies inferior to cardia plane

18
Q

What is the blood supply of stomach

A
  1. Common hepatic artery
    = gastroduodenal artery - anterior superior pancreaticoduodenal artery, - right gastro-omental artery
    = proper hepatic artery - right gastric artery, right hepatic artery ( cystic artery), left hepatic artery
19
Q

Second part of coeliac trunk (splenic branch)

A

2.splenic artery
= left gastro-omental artery
=short gastric artery

20
Q

Name 3rd part of coeliac trunk

A
  1. Left gastric artery
21
Q

Explain venous drainage of lesser curvature of stomach

A

Left and right gastric veins into portal vein

22
Q

Explain greater curvature of stomach venous drainage

A

Left part= splenic vein

Right part= right gastro-omental vein into SMV

23
Q

What vein drains fundus ot stomach

A

Short gastric being into splenic vein

24
Q

What drains posterior surface of stomach

A

Splenic vein with SMV forms portal vein

25
Q

Explain lymphatic drainage of stomach

A

Superior 2/3 = right and left gastric lymph nodes to the
Fundus= gastricosplenio lymphnocles
The right 2/3 of inferior 2/3= gastro mental lymph nodes
The left 1/3 of inferior 2/3= pancreaticoduodenal lymph node
Terminal lymph nodes are to Celiac lymph nodes and then to cistern cyli or thoracic duct

26
Q

Which nerve supplies parasympatic innervation

A

Vagus nerve

27
Q

Where does vagus nerve enter

A

Enters abdomen at T10 together with oesophagus

28
Q

How far does vagus new supply parasympathetic innervation

A

Up to left colic Flexure (forgut and mid gut)

29
Q

Name other contributions to vagus nerve

A

Cardiac plexus → oesophageal plexus → aortic plexus → coeliac plexus

30
Q

Namer branches of vagus nerve

A

Oesophageal,
Gastric
Pancreatic
Branches to gall bladder

31
Q

Namer branches of left vagus nerve

A

Oesophageal branches
Gastric branches
Hepatic branches to hepatic portal vein
Pyloric branches

32
Q

Right vagus nerve branches

A

Oesophageal branches
Gastric branches
Coeliac branches to coeliac plexus
Pyloric branches

33
Q

Explains peptic ulcer disease of posterior wall

A

Gastrodeudenal artery, portal vein, common bile duct and pancreas are affected

34
Q

Peptic ulcer of anterior wall

A

Causes peritonitis leading to epigastrio pain with air under diaphragm

35
Q

What is a vagatomy

A

Cutting of vagus nerves during over secretions of stomach acids

36
Q

Which part of vagus nerve is left during a vagotomy

A

Pyloric branches and fundus branches

Block 4 (12 decks)

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