Gastrointestinal System
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Which of the following structures is correctly paired with its function?
Mouth - mechanical digestion.
Of the following organs, which has both endocrine and digestive functions?
Pancreas.
The term __________ refers to the contraction of smooth muscle in the digestive system that moves food along the GI tract.
peristalsis
Which of the following is not part of the small intestine?
Colon.
Which of the following statements is true about protein digestion?
Absorption of protein occurs primarily in the small intestine.
Which of the following statements regarding digestion is false?
The hormone glucagon is secreted from the pancreas and stimulates mechanical digestion.
Gastric reflux occurs as a result of an improper closing of the _________.
lower esophageal sphincter
If villi in the small intestine were to become damaged, which of the following would likely occur?
Malnutrition would result due to a decreased ability to absorb nutrients.
The ______________ is an extension off of the large intestine that is often referred to as a vestigial organ.
appendix
In the digestive system, bile is manufactured by the ___________ and stored in the ____________.
liver; gallbladder
The majority of nutrient absorption occurs in the ____________.
small intestine
The function of the pyloric sphincter is to ________.
control the entry of food into the duodenum
In the digestive system, the function of the ____________ is to ___________.
stomach; secrete pepsinogen for protein digestion
The primary function of __________ is __________.
bile; fat emulsification in the small intestine
The folds that make up the shape of the villi and microvilli:
Facilitate absorption due to an increased surface area.
Which of the following describes the contraction of the smooth muscle in order to move food down the esophagus to the stomach?
Peristalsis.
Which of the following digestive organs contains vitamin-producing bacteria?
Large intestine.
Which of the following is not a function of pancreatic juice?
Increase acidity of stomach contents.