mouth, pharynx, sphincters, + stomach

another term for mouth

oral cavity

mouth anatomy

lips, cheeks, hard palate, soft palate, uvula, vestibule, tongue, tonsils

hard palate

anterior roof of mouth

soft palate

posterior roof of mouth

uvula

fleshy projection of soft palate

vestibule

space between lips and teeth/gums

tongue’s attachment to skull

attached at hyoid bone and styloid processes of skull

tongue’s attachment in mouth

attached by lingual frenulum to floor of mouth

two tonsils

palatine, lingual

palatine tonsils located at…

posterior end of oral cavity

lingual tonsils located at…

base of tongue

mastication

chewing

mixing masticated food with saliva is called…

bolus

swallowing is initiated by…

tongue

mouth and tongue allow for sense of…

taste

subsections of pharynx

nasopharynx, oropharynx, laryngopharynx

food is moved in pharynx by…

alternating contractions of muscle layers (peristalsis)

pharynx serves as passageway for…

food, air

esophagus

passageway for food only

esophagus length

about 10 inches

esophagus conducts food by…

peristalsis

sphincters

muscular openings/valves

connects esophagus to stomach

cardioesophageal sphincter

connects stomach to small intestine

pyloric sphincter

connects small intestine to large intestine

ileocecal sphincter

stomach regions

cardiac, fundus, body, pylorus

rugae

internal folds of mucosa

stomach can stretch and hold _____ /_____ when full

4 liters/1 gallon

stomach contains these 2 digestive chemicals

hydrochloric acid, pepsin

layers of peritoneum

lesser omentum, greater omentum

muscularis external has 3rd oblique layer that helps…

churn, mix, pummel food (physical digestion)

stomach is like a __________ ________ _____ for food

temporary storage tank

stomach is a main site of…

food breakdown

stomach is where chemical breakdown of ________ begins

protein

chyme

processed food

stomach delivers _______ to…

chyme, small intestine

proper term for swallowing

deglutition