Chap 14 - Digestive System and Nutrition flashcards
The hepatic portal vein empties into the inferior vena cava.
True or False?
False
People who are obese lack self control and should just not eat as much.
True or False?
False
You can eliminate all fat from your diet without suffering any harmful effects.
True or False?
False
Soft drinks are a good source of carbohydrates for the body.
True or False?
False
The body is unable to make any amino acids so all 20 of them must be acquired from a balanced diet.
True or False?
False
Crohn's disease is considered an autoimmune disease.
True or False?
True
Sodium is considered one of the major minerals needed in the human diet.
True or False?
True
A person can fulfill all of their protein requirements without consuming any animal products.
True or False?
True
Which structure in Figure 14.1 stores food, has limited digestion, and secretes HCl?
( ) 1 (liver)
( ) 2 (stomach)
( ) 3 (esophagus)
( ) 4 (appendix)
( ) 5 (small intestine)
2
(stomach)
In Figure 14.1, which structure is the primary site for digestion and absorption of food?
( ) 1 (liver)
( ) 2 (stomach)
( ) 3 (esophagus)
( ) 4 (appendix)
( ) 5 (small intestine)
5
(small intestine)
In Figure 14.1, which structure is the liver?
( ) 1 (liver)
( ) 2 (stomach)
( ) 3 (esophagus)
( ) 4 (appendix)
( ) 5 (small intestine)
1
Inflammation of the gums is called
gingivitis
In what order does a dentist drill through tooth layers?
enamel →dentin →pulp
Starting from the inside of the esophagus and going to the outside, the layers of the digestive tract in sequence are
mucosa → submucosa → smooth muscle → serosa.
In the processing of food through the digestive tract, what is the correct order?
bolus → chyme → feces
In humans, what is the sequence of fat digestion from the lumen of the small intestine to the bloodstream?
lipids → fatty acid and glycerol (converted in EPITHELIAL CELL) → LACTEAL → bloodstream
In humans, digestion of starch begins in the
mouth
Food is prevented from entering the trachea by the
epiglottis
Which of these organs has contact with food for the least amount of time and does not participate in digestion?
( ) mouth
( ) esophagus
( ) stomach
( ) small intestine
( ) large intestine
esophagus
The main function of the esophagus is to
transport food from the mouth to the stomach.
Which organ of the digestive tract functions to store food, kill bacteria, and partially digest proteins?
stomach
A correct function of the human stomach is
storage of food and mixing with digestive fluids to allow chemical digestion.
The pH of the stomach is usually about
2.0
Secretin, gastrin, and CCK in humans are
all hormones that control digestive secretions.
The release of secretin is stimulated by the action of
acid on the wall of the duodenum.
The digestive juices found in the stomach include
( ) trypsin and bile.
( ) trypsin and pepsin.
( ) bile and hydrochloric acid.
( ) amylase and trypsin.
( ) pepsin and hydrochloric acid.
pepsin and hydrochloric acid.
At body temperature, which of these combinations is most likely to result in digestion?
( ) protein, water, pepsin
( ) protein, HCl, pepsin
( ) protein, bile, pepsin
( ) protein, sodium bicarbonate, pepsin
( ) pepsin, HCl, sodium bicarbonate
protein, HCl, pepsin
At body temperature, which of these combinations is most likely to result in digestion?
( ) fat, bile salts, sodium bicarbonate, lipase
( ) fat, bile salts, sodium bicarbonate, pepsin
( ) fat, HCl, maltase
( ) fat, bile salts, HCl, sodium bicarbonate, and trypsin
( ) fat, sodium bicarbonate, lipase
fat, bile salts, sodium bicarbonate, lipase
(F, BS, SB, L)
What pH is required in order for protein to be digested into peptides with the use of pepsin?
3.0
Which layer of the intestinal wall will first absorb nutrients from the lumen?
mucosa |
