mouth, pharynx, esophagus, and stomach, intestine test
Which of the following substances is digested in the mouth?
carbohydrates
the three elements in carbohydrates.
carbon, hydrogen, oxygen
the "soupy" mixture that moves from the stomach into the small intestine
chyme
specific acid produced by cells in the lining of the stomach
hydrochloric acid
Peristalsis continues in the...
large and small intestine
water absorption occurs in the
large intestine
produces bile, physical digestion of lipids
liver
what accessory organs send secretions to small intestine
liver and pancreas
types of digestion in the small intestine
mechanical and chemical
process of breaking down food into smaller parts
mechanical(physical) digestion
food moves from the stomach through the sphincter and, then, into the small intestine
pyloric
the enzyme in the oral cavity that promotes digestion of large molecules into smaller molecules
salivary amylase
the glands associated with the oral cavity.
salivary glands
general name for a ring-like muscle
sphincter
an example of physical digestion in the stomach
stomach muscles mix the food and liquid.
structure located at the end of large intestine
texting
True or False. No "new" digestion begins in the esophagus.
true
True or False. The throat is located in the posterior region of the oral cavity.
true
location of cardiac sphincter
upper end of stomach
the pH of the stomach is approximately
1.5-3
length of small intestine
10-20 feet
processing of food in the stomach takes approximately
2-4 hours
complete digestion of food
24-72 hours
ph of small intestine
8
walls of small intestine _______ water and digestive nutrients
absorb
parts of large intestine
ascending, transverse, descending
food that has been chewed and mixed with saliva in the mouth
bolus
organ in the body that sends signals to the muscles of the esophagus to begin peristalsis
brain
what is the chemical digestion in the small intestine
digestion of carbohydrates, lipids, and protein
what are the three parts of the small intestine?
duodenum, jejunum, ileum
folds over the trachea during swallowing to prevent choking
epiglottis
the structure where peristalsis begins
esophagus
True or False. Peristalsis is a voluntary process.
false
True or False. The teeth and tongue are associated with chemical digestion.
false
True or False. Under normal circumstances, movement of food through the digestive tract is a two-way process.
false
length of large intestine
five feet
protects the stomach from digesting itself
mucus
produces enzymes, chemical digestion of proteins, carbohydrates, and fats
pancreas
the chief digestive enzyme in the stomach is
pepsin
Which of the following substances is digested in the stomach?
proteins
function of carbohydrates
provide energy