Chapter 23 Part 2 Flashcards
posterior region of the bottom portion of the nasal cavity that consists of skeletal muscle
Soft palate
Muscles of tongue that change the size and shape of your tongue, as well as to stick it out; facilitates swallowing and speech
Intrinsic muscles of tongue
Muscles of tongue that (1) position food for optimal chewing, (2) gather food into a bolus (rounded mass), and (3) position food so it can be swallowed.
Extrinsic muscles of tongue
Contains taste buds
Papillae
midline mucous membrane fold that attaches the inner surface of the lips to the gums
Labial frenulum
mucous membrane fold that attaches the bottom of the tongue to the floor of the mouth
Lingual frenulum
Gland that secretes a watery solution that contains salivary amylase
Parotid gland
Gland that secretes a solution that contains amylase but in a liquid thickened with mucus
Submandibular gland
Gland that secrete the thickest saliva with the least amount of salivary amylase.
Sublingual gland
midline, chisel-shaped tooth used for cutting into food
Incisors
(also, canine) pointed tooth used for tearing and shredding food
Cuspids
(also, bicuspid) transitional tooth used for mastication, crushing, and grinding food
Premolar
tooth used for crushing and grinding food
Molar
portion of tooth visible superior to the gum line
Crown
bone-like tissue immediately deep to the enamel of the crown or cementum of the root of a tooth
Dentin
bone-like tissue covering the root of a tooth
Cementum
covering of the dentin of the crown of a tooth
Enamel
deepest portion of a tooth, containing nerve endings and blood vessels
Pulp cavity
portion of a tooth embedded in the alveolar processes beneath the gum line
Root
part of the pharynx continuous with the oral cavity that functions in respiration and digestion
Oropharynx
part of the pharynx that functions in respiration and digestion
Laryngopharynx
smooth muscle sphincter that regulates food movement from the esophagus to the stomach
Lower esophageal sphincter
skeletal muscle sphincter that regulates food movement from the pharynx to the esophagus
Upper esophageal sphincter
Contains bicarbonate mucus that helps to neutralize stomach acids and has tight junctions that prevents gastric juices from entering junctions
Mucosal barrier
is the point where the esophagus connects to the stomach and through which food passes into the stomach
Cardia
dome-shaped region of the stomach above and to the left of the cardia
Fundus
mid-portion of the stomach
Body
lower, funnel-shaped part of the stomach that is continuous with the duodenum
Pylorus
wider, more superior part of the pylorus
Pyloric antrum
sphincter that controls stomach emptying
Pyloric sphincter
fold of alimentary canal mucosa and submucosa in the empty stomach and other organs
Rugae