Anatomy study note · Abdomen

Gallbladder

A pear-shaped sac on the undersurface of the liver that stores (30–50 mL) and concentrates bile.

Key points

• Fundus at the tip of the right 9th costal cartilage.
• Cystic artery from the right hepatic artery.
• CCK → contraction + sphincter of Oddi relaxes.
• Biliary colic T7–T9; cholecystitis → shoulder pain.
• Spiral valve in the cystic duct.
• Gallbladder: pars cystica of the hepatic bud.
• Folded simple columnar mucosa; thin oblique smooth muscle.
• Concentrates bile; CCK makes it contract.

The full note in the atlas also covers

Relations · Features · Blood supply · Lymph drainage · Histology · Development · Clinical notes

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 7, PDF pp. 909–914
• Inderbir Singh’s Human Embryology, ch. 14, PDF pp. 197–198, 202–204
• BRS Cell Biology & Histology, 7th ed., ch. 17, PDF p. 315

More from the abdomen

• Iliac arteries
• Iliacus
• Iliohypogastric and ilioinguinal nerves
• Inferior epigastric vessels
• Inferior mesenteric artery
• Inferior vena cava
• Inguinal ligament
• Internal oblique
• Jejunum and ileum
• Kidney
• Large intestine
• Linea alba

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