26 Questions
What is the function of the stomach in the digestive process?
Mix food with gastric juices to form chyme
Which organ is responsible for producing digestive enzymes and bicarbonate?
Pancreas
Why is mucus important in the large intestine?
To ease passage of feces through the colon
Which process involves primarily taking nutrients into the bloodstream in the small intestine?
Absorption
What controls the release of gastric acid in the digestive system?
Gastrin
Which part of the mouth drops down from the soft palate to prevent food from entering the nasal cavity?
Uvula
What stimulates the release of pancreatic enzymes and bile?
CCK
Which control mechanism reacts to stimuli outside the digestive tract, such as smell, sight, and taste of food?
Long reflex
What is the primary function of lingual lipase in the mouth?
Chemical digestion
What is the primary function of the small intestine?
Absorption of nutrients
Which region of the small intestine contains the duodenal glands that secrete alkaline mucus?
Duodenum
What is the primary mechanism by which chyme is moved through the small intestine?
Peristalsis
How long does it typically take for all food to leave the small intestine?
3-5 hours
What is the role of the ileocecal sphincter in the digestive process?
It allows the passage of chyme from the ileum to the cecum.
Which of the following is NOT a function of saliva?
Regulating the pH of the stomach
Which of the following statements about the tongue is FALSE?
It is a single, undivided structure.
Which of the following is NOT a type of permanent tooth in humans?
Bicuspids
What is the function of the epiglottis during swallowing?
It covers the larynx to prevent food from entering the trachea.
What is the primary function of the premolars?
To mash and grind food
Which part of the pharynx handles both food and air?
Oropharynx
Which of the following is NOT a function of the lower esophageal sphincter?
Initiates peristalsis in the esophagus
Which phase of swallowing is voluntary and controlled by skeletal muscles?
Voluntary phase
Which of the following statements about the stomach is FALSE?
Its size is directly proportional to body weight
Which of the following cells in the gastric glands secrete the inactive form of the enzyme pepsin?
Chief cells
Which part of the stomach connects to the duodenum of the small intestine?
Pylorus
What is the primary function of the cephalic phase of gastric secretion?
Initiation of the digestive process in response to sensory stimuli
Test your knowledge on the functions of various parts of the digestive system including the stomach and small intestine. Learn about how food is processed and absorbed in the body.
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