Anatomy and Physiology of the Digestive System
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1. Function of oral cavity - receives food and is the
site where mechanical di-
gestion and chemical di-
gestion of food begin
2. Gums gingivae
3. Inferior and superior labial frenulum - median folds that join the
lower and upper lips
4. Hard palate - rigid surface underlain
with bone against which
the tongue pushes food
during chewing
5. Soft palate - primarily skeletal mus-
cle that rises during swal-
lowing to prevent food
from entering the respira-
tory system
6. Uvula - finger like extension of
the soft palate that pro-
jects forward
- stops food from going up
nasopharynx
7. Pharynx - nasopharynx
- oropharynx
- laryngopharynx
8. Nasopharynx
, Anatomy and Physiology of the Digestive System
Study online at https://quizlet.com/_jpp1km
- passageway for air ONLY
- closed off by the soft
palate during swallowing
9. Laryngopharynx - extends from the base of
the epiglottis to the base
of the larynx
- serves as passageway for
food, liquids, and air
10. Peristalsis - wavelike contractions
that propel food through
the alimentary canal
11. Esophagus - a collapsible muscular
tube that extends through
the neck and mediastinum
of the thorax
- passageway for food
ONLY
- no digestive or absorp-
tive function
12. Gastroesophageal sphincter - where the esophagus
joins the stomach
13. 4 regions of the stomach - fundus
- cardia
- body
- pyloric region
14. Pyloric sphincter - connects the pylorus to
the duodenum of small in-
Study online at https://quizlet.com/_jpp1km
1. Function of oral cavity - receives food and is the
site where mechanical di-
gestion and chemical di-
gestion of food begin
2. Gums gingivae
3. Inferior and superior labial frenulum - median folds that join the
lower and upper lips
4. Hard palate - rigid surface underlain
with bone against which
the tongue pushes food
during chewing
5. Soft palate - primarily skeletal mus-
cle that rises during swal-
lowing to prevent food
from entering the respira-
tory system
6. Uvula - finger like extension of
the soft palate that pro-
jects forward
- stops food from going up
nasopharynx
7. Pharynx - nasopharynx
- oropharynx
- laryngopharynx
8. Nasopharynx
, Anatomy and Physiology of the Digestive System
Study online at https://quizlet.com/_jpp1km
- passageway for air ONLY
- closed off by the soft
palate during swallowing
9. Laryngopharynx - extends from the base of
the epiglottis to the base
of the larynx
- serves as passageway for
food, liquids, and air
10. Peristalsis - wavelike contractions
that propel food through
the alimentary canal
11. Esophagus - a collapsible muscular
tube that extends through
the neck and mediastinum
of the thorax
- passageway for food
ONLY
- no digestive or absorp-
tive function
12. Gastroesophageal sphincter - where the esophagus
joins the stomach
13. 4 regions of the stomach - fundus
- cardia
- body
- pyloric region
14. Pyloric sphincter - connects the pylorus to
the duodenum of small in-
