10 Questions
What is the main component of the mouth cavity proper?
Teeth and gums
Which structure is covered by modified non-keratinized skin without hair follicles?
Vermillion zone
What is the space between the cheeks and gums called?
Vestibule
Which glands are part of the digestive system?
Salivary glands, liver, pancreas
Which part of the mouth is composed of thin skin with hair follicles?
External surface of the lip
What is the length of the duodenum?
About 25 cm
Where do the bile duct and main pancreatic duct unite and open into the duodenum?
Second part
Which part of the small intestine is the fixed part?
Duodenum
How long is the free part of the small intestine?
About 6 meters
Which part of the small intestine is the proximal 2/5?
Jejunum
Study Notes
Mouth Cavity
- The main component of the mouth cavity proper is the gums.
Skin
- The structure covered by modified non-keratinized skin without hair follicles is the lips.
Mouth Anatomy
- The space between the cheeks and gums is called the vestibule.
- The mouth part composed of thin skin with hair follicles is the cheeks.
Digestive System
- The salivary glands are part of the digestive system.
Small Intestine
- The duodenum is approximately 25-30 cm (10 inches) in length.
- The bile duct and main pancreatic duct unite and open into the duodenum at the ampulla of Vater.
- The fixed part of the small intestine is the duodenum.
- The free part of the small intestine is approximately 6.9 meters (22.6 feet) in length.
- The proximal 2/5 of the small intestine is the jejunum.
Test your knowledge of the anatomy and histology of the digestive system with this quiz. Learn about the general plan and basic histological layers of the digestive system, as well as the features and microscopic structure of the mouth, teeth, pharynx, lips, tongue, esophagus, and stomach.
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