Flashcards in Mouth, Pharynx, and Esophagus Deck (29):
The oral/buccal cavity contains what structures?
*2 of them*
Teeth and Tongue
The Functions of the Oral Cavity consist of what?
4 general functions **this question is kinda eh**
1) Analysis (of food)
2) Mechanical digestion, mastication (chewing)
3) lubrication with enzymes, deglutition
4) limited chemical digestion
What is the Oral cavity bordered by?
What is the structure... that allows us to chew and breath at the same time... *at least allows for this to happen*
The space between the cheeks/lips and teeth
The area within the teeth and gums is the ______
oral cavity proper
Gingiva is another word for
______ is the *dangling* extension of the soft palate
Helps prevent food from entering the nasopharynx
This structure helps move food around in the mouth during chewing...
*aids in forming food into a bolus for swallowing*
What kind of muscles allow the tongue to *CHANGE SHAPE*
Not attached to bone
What kind of muscles allow the tongue to Change position *its location*
Attached to bone
The surface of the tongue is covered with _____ ______, which contain taste buds and increase surface area of tongue.
What are the 3 (extrinsic) salivary glands of the mouth?
(Bonus) Where do each gland empty into respectively?
which produce thin water saliva...
**empty into the vestibule by the second upper molar**
produce thicker saliva, higher mucin...
**they empty into the lingual frenulum**
Submandibular Glands: mixture of serous cells and mucous cells
**Empty into the mouth on either side of lingual frenulum**
What are the 2 main functions of salivary glands?
(don't overthink it)
1) Lubricate food..
*saliva is 97-99% water... and contains protein called mucin (main ingredient to mucus)
2) Begin Chemical digestion
This structure connects pharynx to the stomach
What nervous system is responsible for the peristaltic movement of smooth muscle?
________ is the opening in the diaphragm (breathing muscle) where esophagus passes through
________ is the muscle on the inferior end of esophagus that prevents back flow of stomach content
normally in a contract state
________ refers to the opening of the esophagus into the STOMACH
Where does the production of the "Intrinsic factor" occur? What does it allow the absorption of?
Intrinsic factor occurs in the Stomach...
Which is required for absorption of vitamin B12
_____ interior stomach folds allowing stomach to expand to accommodate large meals
_______ ________ are obliquely oriented muscles which help in mechanical digestion.
What are the 4 parts of the stomach?
Cardia (Cardiac Region)
Gastric Glands are primarily responsible for what kind of digestion?
B chemical.... lul
gastric glands contain 4 types of secretory cells... what are they...
What do each cell type secrete respectively?
*intrinsic factor & HCl*
Digestion function consist of 3 phases...
*briefly describe each phase
Consist of physical stimulation that result in a reflex, causing gastric motility and secretion
Consist of digestion in stomach...
begins with movement of chyme into the duodenum
What chemicals stimulate stretch of the stomach
(define it) Chyme
Liquefied digested food, which is transferred from stomach to the duodenum