WITH COMPLETE SOLUTIONS
alimentary canal
mouth -> pharynx -> esophagus -> stomach -> small intestine -> large intestine
Layers of the GI tract
1. Mucosa
2. Submucosa
3. Muscularis
4. Serosa
Mucosa
inner lining of the mucus membrane
Submucosa
connective tissue layer under the mucosa. Contains blod vessels, lymph tissue, and
nerve endings
Muscularis
two layers of smooth muscle, circular layer, and longitudinal layer
Serosa
outermost layer
buccal cavity
mouth
vestibule of face
the space between the lips and cheeks
hard palate
, maxilla and palatine bones
soft palate
communicates with top portion of throat
uvula
projection of soft palate
tonsils
palatine, lingual, adenoids
Salivory glands
parotid, sublingual, submandibular
3 divisions of the pharynx
1. Nasopharynx
2. Oropharynx
3. Laryngopharynx
nasopharynx
Communicates with the nasal cavity and provides a passageway for air during breathing
oropharynx
middle section behind mouth
laryngopharynx
communicates with larynx
Esophagus
passageway for food
rugae
grooved muscles inside of stmach