Serves to store and concentrate bile
Gallbladder
Where is hydrochloric acid produced, and what is its role?
Stomach - Kills bacteria in the food and makes the food acidic
Where is bile produced?
Liver
Main function of bile
Breaks down fats
Where does the most nutrient absorption happen?
Small intestine
Most chemical digestion happens where
Small intestine
What to enzymes are released in the mouth?
Amylase and lypase
What is the function of amylase?
Begins digestion of starch
What is the function of lipase?
Begins digestion of fat
Inner surface of the small intestine has finger–like projections called _________ Which have an extensive network of blood vessels
Villi
Digested food is passed into
Blood vessels
Undigested food is passed into
Large intestine
The muscular sphincter called ______________ Helps prevent backflow of stomach acid into the esophagus
Lower esophageal sphincter (LES)
What is the function of microvilli in digestion
Further increases the absorption area and produces digestive enzymes
What role do the two layers of smooth muscle of the muscularis play in propelling food through the digestive tract?
Regularly contracts and relaxes
Large membrane in the abdominal cavity that connects and supports internal organs
Peritoneum
What is the greater omentum mainly composed of?
Deposits of fat
What is another name for the mouth?
Buccal cavity
What is chyme?
Semi-fluid mixture of small food particles and gastric juice
What are the 6 organs of the digestive tract?
Mouth, esophagus, stomach, small intestine, large intestine, anus
What are the 6 accessory organs of the digestive tract?
Teeth, tongue, salivary glands, liver, pancreas, gallbladder
The esophagus lies ________ to the trachea
Posterior
The stomach contains folds in its lining called
Rugae
Where is the liver found?
Fills the operate abdomen below the diaphragm
What are the main functions of the liver?
Storing in releasing glucose, processing vitamins and minerals, filtering toxins, and recycling old blood cells
The pancreatic and bile ducts empty secretions into which part of the small intestine?
Duodenum
What are the three parts of the small intestine in order?
Duodenum, jejunum, ilium
How do the microvilli, the villi, and the circular folds aid in digestion?
Increase its surface area and enhance the absorption of nutrients
