MA700 Exam #1
What three process does food undergo in the body? - answer digestion, absorption,
metabolism
What is ingestion? - answer taking in food
What is mechanical digestion? - answer the larger pieces of food that are ingested have
to be broken into smaller particles that can be acted on by various enzymes such as
chewing or mastication.
What is chemical digestion? - answer The complex molecules of carbohydrates,
proteins, and fats are transformed by chemical digestion into smaller molecules that can
be absorbed and used by cells.
What is deglutition? - answer swallowing food particles from the mouth into the pharynx
and then to esophagus.
What is peristalsis? - answerThe movements that propel the food particles through the
digestive tract.
What is absorption? - answerThe simple molecules that are produced from chemical
digestion pass through the lining of the small intestine into the blood.
What is defecation? - answerThe removal of indigestible wastes through the anus, in
the form of feces.
What is the function of the lips and cheeks when eating? - answerTo hold food in the
mouth and keep it in place for chewing. The lips contain sensors that judge the foods
temperature and texture. The cheeks form lateral boundaries of the oral cavity.
What are the main components of the cheek? - answerThe buccinator muscle and other
muscles of facial expressions.
What is the palate? - answerThe roof of the oral cavity.
What is the lingual frenulum? - answerThe anterior portion is relatively free but is
connected to the floor of the mouth, in the midline, by a membranous fold of tissue.
What are papillae and what do they do? - answerIt's the dorsal surface of the tongue is
covered by tiny projections. It provides friction for manipulating food in the mouth and
they also contain the taste buds.
, What are the two sets of teeth that develop in the mouth? - answerOne is the primary
(deciduous) teeth and the secondary (permanent) teeth.
Primary teeth contain how many teeth total? - answertotal of 20 teeth
Secondary teeth contain how many teeth total? - answertotal of 32 teeth
What is the purpose of the incisors? - answerAre chisel shaped and have SHARP
edges for biting food.
What is the purpose of the cuspids? - answerAre cone shaped and have points for
grasping and tearing food.
What is the purpose of the bicuspids? - answerThey have flat surfaces with rounded
projections for crushing and grinding also known as premolars.
What is contained in the upper region of the pharynx? - answerThe nasopharynx and is
posterior to the nasal cavity. It contains the pharyngeal tonsils, also known as the
adenoids.
What is contained in the middle region of the pharynx? What does it open into? -
answerIs the oropharynx where food enters when it is swallowed. The opening from the
oral cavity into the oropharynx is called the fauces.
What is contained in the lower region of the pharynx? What does it open into? -
answerIs the laryngopharynx which opens into both the esophagus and the larynx.
What is the function of the esophagus? - answerIt serves as a passageway for food
between the pharynx and the stomach.
What is the purpose of the pyloric sphincter? - answerActs as a valve between the
stomach and small intestine.
What type of acid is found in the stomach? - answerhydrochloric acid
How is chyme created? - answerThe churning action of the muscles in the stomach wall
breaks the food particles of the bolus that was swallowed into smaller sizes and mixes
them with the gastric juice.
How many hours does it take for the stomach to empty a meal? - answer4 hours after a
meal.
What is the function of the small intestine? - answerfinishing the process of digestion;
absorbing the nutrients; and passing the residue on to the large intestine.
What three process does food undergo in the body? - answer digestion, absorption,
metabolism
What is ingestion? - answer taking in food
What is mechanical digestion? - answer the larger pieces of food that are ingested have
to be broken into smaller particles that can be acted on by various enzymes such as
chewing or mastication.
What is chemical digestion? - answer The complex molecules of carbohydrates,
proteins, and fats are transformed by chemical digestion into smaller molecules that can
be absorbed and used by cells.
What is deglutition? - answer swallowing food particles from the mouth into the pharynx
and then to esophagus.
What is peristalsis? - answerThe movements that propel the food particles through the
digestive tract.
What is absorption? - answerThe simple molecules that are produced from chemical
digestion pass through the lining of the small intestine into the blood.
What is defecation? - answerThe removal of indigestible wastes through the anus, in
the form of feces.
What is the function of the lips and cheeks when eating? - answerTo hold food in the
mouth and keep it in place for chewing. The lips contain sensors that judge the foods
temperature and texture. The cheeks form lateral boundaries of the oral cavity.
What are the main components of the cheek? - answerThe buccinator muscle and other
muscles of facial expressions.
What is the palate? - answerThe roof of the oral cavity.
What is the lingual frenulum? - answerThe anterior portion is relatively free but is
connected to the floor of the mouth, in the midline, by a membranous fold of tissue.
What are papillae and what do they do? - answerIt's the dorsal surface of the tongue is
covered by tiny projections. It provides friction for manipulating food in the mouth and
they also contain the taste buds.
, What are the two sets of teeth that develop in the mouth? - answerOne is the primary
(deciduous) teeth and the secondary (permanent) teeth.
Primary teeth contain how many teeth total? - answertotal of 20 teeth
Secondary teeth contain how many teeth total? - answertotal of 32 teeth
What is the purpose of the incisors? - answerAre chisel shaped and have SHARP
edges for biting food.
What is the purpose of the cuspids? - answerAre cone shaped and have points for
grasping and tearing food.
What is the purpose of the bicuspids? - answerThey have flat surfaces with rounded
projections for crushing and grinding also known as premolars.
What is contained in the upper region of the pharynx? - answerThe nasopharynx and is
posterior to the nasal cavity. It contains the pharyngeal tonsils, also known as the
adenoids.
What is contained in the middle region of the pharynx? What does it open into? -
answerIs the oropharynx where food enters when it is swallowed. The opening from the
oral cavity into the oropharynx is called the fauces.
What is contained in the lower region of the pharynx? What does it open into? -
answerIs the laryngopharynx which opens into both the esophagus and the larynx.
What is the function of the esophagus? - answerIt serves as a passageway for food
between the pharynx and the stomach.
What is the purpose of the pyloric sphincter? - answerActs as a valve between the
stomach and small intestine.
What type of acid is found in the stomach? - answerhydrochloric acid
How is chyme created? - answerThe churning action of the muscles in the stomach wall
breaks the food particles of the bolus that was swallowed into smaller sizes and mixes
them with the gastric juice.
How many hours does it take for the stomach to empty a meal? - answer4 hours after a
meal.
What is the function of the small intestine? - answerfinishing the process of digestion;
absorbing the nutrients; and passing the residue on to the large intestine.
