Chapter 8 Flashcards
(197 cards)
The continuous tube at the mouth and ending at the anus is known as the _____ or the _____
alimentary canal or the gastrointestinal tract
what are the 3 main functions of the Digestive System
digestion, absorption and elimination
a ___ is a soft mass of chewed food ready to be swallowed
bolus
the medical work for chewing is ___
mastication
the ___ is the passageway for both respiration, and digestion, and a bolus of food to pass from the pharynx to the stomach
throat
the ____ is the passageway for food from the pharynx tot he stomach
esophagus
another name for the digestive system is the ___ system
gastrointestinal
the stomach converts a bolus of food to a semiliquid state called ___
chyme
the roof of the mouth contains both a hard and soft ___
palate
the ____ surrounds the necks of the teeth
gingivae
the ___ is made from skeletal muscle and is covered with a mucous membrane
tongue
located on the surface of the tongue are ___ and __ ___
papillae and taste buds
name 2 sets of teeth
deciduous and permanent
the ___ portion of the tooth projects above the gum. The ___ is embedded in the jawbone. The ___ is the constricted portion between the crown and root.
crown, root, neck
The __ ___ contains the dental pulp, which is richly supplied with blood vessels and nerves.
pulp cavity
the ___ ___ is a narrow tunnel located at the root of the tooth and blood vessels and nerves enter through the opening called the ___ ___.
root canal , apical foramen
a layer of ___ covers the dentin of the root, protecting and firmly anchoring the ligament
cementum
the bulk of the tooth is ___ and ____ covers the exposed part of the crown of the tooth and is the hardest part of the tooth
dentin, enamel
Name the 3 Subdivisions of the throat
nasopharynx, oropharynx, laryngopharynx
another name for the voice box is the ____
larynx
the ____, a flap of tissue which blocks the opening of the voice box, preventing food from entering the airway leading to the windpipe.
epiglottis
the ___ leads from the pharynx to the stomach. Food must pass the ___ sphincter, also called the ____before entering the stomach.
esophagus, cardiac, LES
food is carried along the esophagus by a series of wavelike muscular contractions called ____
peristalsis
the ___ is a muscular saclike portion of the alimentary canal between the esophagus and the duodenum
stomach