Test 5- Digestive System Flashcards
Basic pathway of the digestive system
mouth oral cavity tongue pharynx esophagus stomach small intestine large intestine rectum anus
Secretes digestive enzymes into the alimentary canal
salivary glands
pancreas
liver
4 stages of food processing
ingestion
digestion
absorption
elimination
Space between teeth and cheeks
Buccal cavity
Space between lips and teeth
Vestibule
Forms the roof of mouth
Hard and soft palates
Posterior portion of soft palate
Uvula
Inferior portion of tongue attaching to base of the oral cavity
Frenulum
Tongues point of attachment
Root
Anterior portion of tongue
Body
Produce saliva to clean mouth and teeth and moisten bolus
Salivary glands
3 pairs of salivary glands
parotid
sublingual
submandibular
On lateral side of face, anterior to ear, enters oral cavity at 2nd upper molars
Parotid salivary gland
8-20 ducts empty saliva into the floor of mouth
Sublingual salivary gland
On medial surface or mandible, empty on either side of the lingual frenulum
Submandibular salivary gland
Portion of tooth below the gum line
Root
Exposed surface of teeth
Crown
Hard outer surface of tooth made of calcium
Enamel
Inner matrix of tooth
Dentin
Hollow inside of tooth, containing vessels and nerves
Pulp cavity
Canal running the length of the root
Root canal
Where gum and tooth meet
Gingival sulcus
Front cutting teeth
Incisors
Conical, tearing teeth
Cuspids (canines)
Crushing, grinding teeth (2 roots)
Bicuspids
3 or more roots- also crush and grind
Molars
Lip/cheek side of the oral cavity
Labial/buccal side
Tongue side of the oral cavity
Lingual/palatal side
Faces away from last molar
Mesial side
Faces toward the last molar
Distal side
Surface that touches other teeth when the teeth are closed against each other
Occlusal surface
Connects oral cavity to esophagus and is involved in swallowing
Pharynx
Reflex when food ends the pharynx
larynx rises
glottis closes
epiglottis flips down over glottis
4 layers of the digestive tube
serosa
muscularis
submucosa
mucosa
Outside layer of CT and peritoneum
Serosa
Muscular layer of the digestive tube
Muscularis