11 Questions
Which one of the following is NOT a major salivary gland?
Minor salivary gland
Which type of cells help with the expulsion of saliva along the course of the duct?
Myoepithelial cells
What is the function of saliva?
All of the above
Which organ develops from the gut tube and maintains contact with other digestive organs via ducts?
Pancreas
Which salivary gland produces watery secretion that accounts for 60% of the saliva it produces?
Submandibular gland
Which hormone stimulates glucose production via gluconeogenesis and glycogen breakdown in the pancreas?
Glucagon
Which organ is the largest and heaviest internal organ, weighing about 1.5 kg in an adult?
Liver
Which of the following is true about the portal triad in liver histology?
The portal triad consists of a hepatic arteriole, a central vein, and a bile ductule.
Which of the following is true about the hepatic sinusoids in liver histology?
The hepatic sinusoids are lined with a thin discontinuous epithelium.
Which of the following is true about bile canaliculi in liver histology?
Bile canaliculi are located between hepatocytes.
Which of the following is true about the gallbladder in gallbladder histology?
The gallbladder stores and concentrates bile.
Study Notes
Salivary Glands
- The parotid gland, submandibular gland, and sublingual gland are the three major salivary glands.
- The parotid gland produces watery secretion, accounting for 60% of the saliva it produces.
Function of Saliva
- Saliva helps with the digestion of carbohydrates by breaking down starch into simple sugars.
Duct System
- Myoepithelial cells help with the expulsion of saliva along the course of the duct.
- The duct system connects the salivary glands to the oral cavity.
Pancreas
- The pancreas develops from the gut tube and maintains contact with other digestive organs via ducts.
- The hormone glucagon stimulates glucose production via gluconeogenesis and glycogen breakdown in the pancreas.
Liver
- The liver is the largest and heaviest internal organ, weighing about 1.5 kg in an adult.
- The portal triad in liver histology consists of the hepatic artery, hepatic portal vein, and bile duct.
- Hepatic sinusoids are the spaces between the hepatocytes and the hepatic triad, allowing for the exchange of substances.
- Bile canaliculi are small channels between hepatocytes that collect and transport bile.
Gallbladder
- The gallbladder is a muscular sac that stores and concentrates bile from the liver.
Test your knowledge on the accessory organs of the gastrointestinal tract with this quiz. Learn about the gross anatomy and histology of the salivary glands and pancreas.
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