Flashcards in Chapter 23 Deck (30):
The major site for nutrient absorption is the __________.
The primary goal of digestive tract regulatory mechanisms is to optimize nutrient breakdown and absorption.
The serous membrane that covers the external surface of most digestive organs is called the __________.
__________ circulation collects nutrient-rich blood from the GI tract and delivers it to the liver.
protective outermost layer of the alimentary canal
. main site of nutrient absorption
C. moderately dense connective tissue that has a rich supply of blood, lymphatic vessels, and nerve fibers
. responsible for segmentation and peristalsis
Saliva contains enzymes that break down proteins.
The permanent dentition consists of __________ teeth in a full set.
A weak gastroesophageal sphincter can result in heartburn.
Which of the following is NOT a function of the stomach?
The stomach chemically digests lipids.
The phases of gastric secretion from first to last are __________.
cephalic phase, gastric phase, intestinal phase
The increased concentration of HCO3- in blood draining from the stomach is called __________.
the alkaline tide
The __________ is the first segment of the small intestine.
Digestion of carbohydrates and proteins by brush border enzymes occurs within the ________ of the small intestine.
Bile is stored and concentrated in the __________.
Which of the following is NOT a characteristic of the liver?
It has three lobes.
__________ is NOT found in pancreatic secretions.
Most digestion occurs in the small intestine.
Most water is absorbed in the __________.
Bacterial flora in the large intestine do NOT produce __________.
Diarrhea results when food passes too quickly through the large intestine.
. fatty acids and monoglycerides
Pepsin enzymatically digests __________.
Someone on a fat-free diet would not efficiently absorb vitamin D from their diet.