3020 Lecture 17
Amber Stokes・2 minutes read
The digestive process begins in the mouth with mechanical digestion and the breakdown of starches by salivary amylase, followed by swallowing through the esophagus aided by peristalsis. In the stomach, gastric juices and smooth muscle aid in the digestion of proteins, while the liver, gallbladder, and pancreas play essential roles in further digestion and absorption in the small intestine.
Insights
- Saliva contains salivary amylase, an enzyme that initiates the breakdown of starches in the mouth, showcasing the role of saliva in the initial digestion process.
- The liver filters blood from the digestive tract, metabolizes drugs and alcohol, and produces bile, while the gallbladder stores and secretes bile for fat emulsification in the small intestine, emphasizing the intricate process of fat digestion and the liver's multifunctional role in the digestive system.
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Recent questions
What is the function of the tongue?
The tongue mixes food with saliva for swallowing.
How does the stomach digest proteins?
The stomach primarily digests proteins using gastric juices.
What is the role of bile in digestion?
Bile aids in the emulsification of fats for digestion.
How does the small intestine absorb nutrients?
The small intestine absorbs nutrients through villi and microvilli.
What is the function of the pancreas in digestion?
The pancreas secretes digestive enzymes and bicarbonate for digestion.
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