slides of anatomy - ju medicine · 2019. 5. 2. · please note: these slides were made by the...
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Please note: These slides were Made by the PremedAcademic Team to fit the slides of spring 2019.
Slides of Anatomy
Dr,Maher AL-Hadidi , University of JordanSpring 2019 1
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ABDOMENLecture 2
Dr,Maher AL-Hadidi , University of JordanSpring 2019 2
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Esophagus
➢ About 25 cm long.➢ Extends from lower end of pharynx (C6)to the
stomach.➢ Traverse diaphragm at level of T10.➢ Muscular wall arrange in 2 layers:
1. Outer longitudinal.2. Inner circular.
➢ Innervation:
• Upper 3rd : voluntary.
• Middle 3rd : mixed.
• Lower 3rd : involuntary.
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Abdominal
Esophagus
➢ Shortest part.➢ About 1.5 cm long.➢ AS: Celiac artery.➢ Vs: portal vein.
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Stomach
▪ Upper dilated part of G.I.T.
▪ Shape and size depends on:- Position of a person.- Habits of eating.
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Stomach- Parts
• 2 Openings : Cardiac, Pyloric.Relatively fixed at these ends.
• 2 Surfaces :Anterior, posterior • 2 Curvatures :
• Greater left.• Lesser Right.
✓ Angular notch:At lesser curvature that marks body from pylorus.
• Parts: Fundus, Body, Pylorus
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Stomach
Wall form of 2 layers:1. Mucosa.2. Submucosa.3. Musculosa.4. Serosa.Mucosa: has longtuidinal folds in empty stomach Gastric canal:
- Between 2 permanent mucosal folds opposite lesser curvature.- Common site of gastric ulcer.
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Stomach-
Muscular wall Musculosa form of 2 layers:
1. Outer longitudinal. 2. Middle circular.
➢ Pyloric sphincter: Marked thickening of circular layer that control emptying of stomach.3. Inner oblique.
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Artery: branches from Celiac A. Veins: to portal vein.
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Duodenum
▪ Capital G- shaped tube about 25cm long, extending from pylorus to jejunum.
▪ Surrounds head of pancreas.▪ Retroperitoneal except its proximal
and distal inches.▪ Divides into 4 parts:1. First part.2. Second part.3. Third part.4. Fourth part.
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Structures medial to
the 2nd part
▪ Medial structures are:1. Head of pancreas.2. Entrance of common bile duct.3. Entrance of pancreatic ducts.
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Duodenum- Arteries,
veins ▪ The site of entrance of the common
bile duct, marks the location of union between the foregut and midgut.
▪ According to development, it divides into 2 halves:• Proximal ½ foregut.• Distal ½ midgut.
▪ Arteries:• Proximal ½ : from celiac artery. • Distal ½ : from SMA.
▪ Veins: by 2 veins portal veins.
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Small intestine
▪ Mobile intraperitoneal tube.▪ About 6m long.▪ Extending from duodenum at Lt. side
to cecum at Rt. Side.▪ Located around umbilicus.▪ Anchored to post. Abdominal wall by
fan shaped mesentery.▪ Form of two parts:
• Proximal jejunum • Distal ileum.
▪ Supply by SM artery.
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Jejunum
Specifec features :1. Red in color 2. Proximal 2/5.3. Wider in diameter.4. Thick wall 5. Few fat within its mesentery.6. Simple arterial arcades 1 or 2 7. Located above umbilical level.
Specifec features :1. Pale in color 2. Distal 3/5.3. Smaller in diameter.4. Thin wall 5. Plenty of fat within its mesentery.6. Complex arterial arcades 1-47. Located below umbilical level.
ileum Each part is known by its specific features
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