28, 9780134320762 | Rationals Included
Undigested materials are expelled from the body via a process called ______.
secretion
defecation
regulation
absorption - ANSWER: defecation
The digestive organs form a(n) ______ from the mouth to the anus.
discontinuous tube
continuous tube
disjointed tract - ANSWER: continuous tube
______ is the first step in the process of digesting and absorbing nutrients.
Ingestion
Secretion
Elimination
Absorption - ANSWER: Ingestion
Churning movements in the small intestine, called ______, help disperse the material being digested
and combine it with digestive organ secretions.
secretion
propulsion
peristalsis
mixing - ANSWER: mixing
Mechanical digestion ______ breaks down ingested materials into smaller pieces.
enzymatically
physically
chemically - ANSWER: physically
Not everything we eat can be used by the body. Two examples include ______ and ______.
protein, fat
cellulose, fiber
carbohydrates, protein
apples, oranges - ANSWER: cellulose, fiber
All undigestible materials and the waste products secreted by the accessory organs into the GI tract
are compacted into ______ and then eliminated from the GI tract by the process of ______.
feces, defecation
mucin, micturition
fluid, excretion - ANSWER: feces, defecation
When chewed, food is mixed with saliva and converted into a ball of food called _______.
a bolus
,chyme
feces
bile - ANSWER: a bolus
The lining of the oral cavity protects against the ______ activities associated with digestion.
abrasive
moistening
acid producing - ANSWER: abrasive
A wave of contraction that moves material ahead of the wave through the GI tract toward the anus is
known as ______.
mixing
churning
peristalsis
secretion - ANSWER: peristalsis
______ is the breakdown of large food items into smaller components.
Excretion
Propulsion
Absorption
Digestion - ANSWER: Digestion
Undigested materials are expelled from the body via a process called ______.
regulation
absorption
defecation
secretion - ANSWER: defacation
The lateral walls of the oral cavity are formed by the cheeks, which are covered externally by the
______ and contain the ______ muscles.
mesothelium, masseter
integument, buccinator
endothelium, buccinator
skin, masseter - ANSWER: integument, buccinator
The final function of the digestive system is the ______ of wastes.
elimination
absorption
mastication
mixing - ANSWER: elimination
The internal surfaces of the superior and inferior lips each are attached to the gingivae by a thin
mucosa fold in the midline, called the ______.
lingual rugae
palatoglossal arch
labial frenulum
lingual frenulum - ANSWER: labial frenulum
The mouth is the initial site of ______ digestion (via mastication) and ______ digestion (via an enzyme
in saliva).
, mechanical, chemical
chemical, mechanical - ANSWER: mechanical, chemical
The gingivae are composed of ______ connective tissue, with an overlying nonkeratinized stratified
squamous epithelium that covers the ______ processes of the upper and lower jaws and surrounds
the necks of the teeth.
dense regular, condyloid
dense regular, alveolar
adipose, alveolar
dense irregular, alveolar - ANSWER: dense irregular, alveolar
The ______ muscles compress the cheeks against the teeth to hold solid materials in place during
chewing.
masseter
orbicularis
buccinator
hypoglossal - ANSWER: buccinator
The hard palate is formed by the ______ processes of the maxillae and the horizontal plates of the
______ bones.
lateral, mandibular
palatine, palatine
horizontal, palatine
buccal, zygomatic - ANSWER: palatine, palatine
The lips are formed primarily by the ______ muscle and covered with keratinized stratified squamous
epithelium.
levator labii
orbicularis oculi
buccinator
orbicularis oris - ANSWER: orbicularis oris
Which of the following is NOT a function of the tongue?
olfaction
sound production
gustation
swallowing - ANSWER: olfacation
Water makes up ______ of the volume of saliva and is its primary ingredient.
80%
70%
99.5%
60% - ANSWER: 99.5%
The gums are called the ______.
frenulum
gingivae
buccinator
alveolus - ANSWER: gingivae