digestive tract - semmelweis
TRANSCRIPT
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Digestive
tract
Liver
Pancreas
Dr. Szuák
András
GYTK
2019.03.11.
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The great glands
• Liver • Pancreas
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Right lobe
Gall bladder
Falciform lig
Left coronary
lig.
Left lobe
Right
coronary lig.
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Right lobe
Left lobe
Round lig. Gall bladder
Ligamentum
venosum
Inferior vena
cava
Bare area
Liver hilum
Portal vein
Proper hepatic
artery
Hepatic duct
Hepatorenal
lig.
Caudate lobe
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Segments of the liver
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Lobes of the liver • The actual boarder is the so called
Rex-Cantlie line
– Line between
• inferior vena cava
• gall bladder
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Diaphragm
Stomach
Spleen
Left colic flexure
Ascending colon
Right colic flexure Transverse colon
Descending colon
Greater omentum
Transverse mesocolon
Hepatoduodenal lig.
Lesser omentum
Topography of the liver
Liver
Gall bladder
Round lig.
Falciform lig.
Left coronary lig.
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Omental
bursa
Hepato-duodenal
lig.
Hepato-gastric
lig.
Lesser
omentum
Greater omentum
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Bile passages
Bile duct
Hepatic duct
Pancreatic
duct
Cystic duct
Duodenum
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Blood supply of the liver
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Portal vein
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Histology of the liver • Hepatic lobules – hexagonal shape (portal lobule, acinus)
– Portal triad – portal vein, artery, bile duct
– Hepatic sinusoids between the hepatic chords
– Central vein
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Hepatic lobule
Central vein
Interlobular vein
Interlobular artery
Interlobular duct
Portal
triad
Hep. chord
Hep. sinus
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Hepatic sinus
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Bile
canaliculi
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Central vein
Portal
triad
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Interlobular vein
Interlobular artery
Interlobular duct
Portal triad
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Hep. chord
Endothel cell
Kupffer-cell
Bile canaliculus
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Gall bladder
• Simple columnar epith.
• Lamina propria – glands, lymphocytes
• NO Muscularis mucosae layer
• NO Submucosa layer
• Muscularis externa
– cirlular, longitudinal and oblique layers
• Serosa OR Adventitia
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Gall bladder
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The great glands
• Liver
• Pancreas
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Pancreas
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Left hepatic duct Right hepatic duct
Common hepatic duct
Cystic duct
Gall bladder
Bile duct
Major duodenal papilla
Minor duodenal papilla
Accessory pancreatic duct
Pancreatic duct
Ducts opening into the duodenum
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Blood supply of the pancreas
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Histology of the pancreas
• Serous gland
• Centroaciner cell
• Langerhans islets – endocrine part
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Kidney
Urinary
tract
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Position of the kidneys
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Kidney
Adrenal gland
Renal artery
Renal vein
Ureter
Fibrous capsule
Adipose capsule
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cortex
medulla
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Kidney
• Medulla – pyramids – Renal lobes
• Cortex – Bertini columns
– Convoluted part
– Straight part
• Renal artery – interlobar aa. –arcuate aa.
– interlobular aa.
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Nephron
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Nephron
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Macula densa
Malphigian corpuscule
Podocytes
interdigitating
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Ureter
• Urothelium
• Dense fibro-elastic connective tissue in the
lamina propria
• NO muscularis mucosae&submucosa
• Muscularis externa
– Inner longitudinal, outer circular layer
– Serosa or Adventitia
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Urinary bladder
• Urothelium
• Dense fibro-elastic connective tissue in the lamina propria
• Muscularis mucosae – Not forming a continous layer, only some islets of
smooth muscle
• Submucosa – loose connective tissue
• Muscularis externa – Inner&outer longitudinal layers, middle circular layer
• Serosa or Adventitia
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Urothelium, umbrella cells
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Male Bladder&Urethra
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Female Bladder&Urethra
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Thank you for
your attention!