Oral cavity and tongue

hard palate

bony anterior portion of palate

soft palate

posterior portion, not supported by bone

uvula

soft tissue hanging from the middle of the soft palate

fauces isthmus

oropharynx that border oral cavity

palatoglossal arch

posterior border of oral cavity

palatine tonsils

palatopharyngeal arch

entrance from oral cavity into throat

palatine raphe

a slightly raised line extending from the back of the incisive papilla and down the middle of the hard palate.

palatoglossal arch

The posterior border of the oral cavity

tongue

striated muscle covered by mucous membrane

extrinsic muscles of the tongue

Origin: skull + hyoid bone

Insertion: tongue

Actions: protrude + withdraw tongue

Intrinsic muscles of the tongue

Alter tongue shape + swallowing

terminal sulcus

groove divides tongue into anterior 2/3; posterior 1/3

Foramen cecum of tongue

Origin of the thyroglossal duct from which the thyroid gland develops

filiform papillae

No taste buds

Heavily keratinized

Very numerous

fungiform papillae

Less numerous

Lightly keratinized

Mushroom shape

Scattered taste buds

foliate papillae

Sides of tongue

Have taste buds

vallate papillae

Least numerous

Largest papillae

Form V-shaped line before terminal sulcus

salivary glands

parotid, submandibular, sublingual

parotid gland

Largest salivary gland

Within cheek

Serous acini

submandibular gland

Under the jaw

Largely serous + mucous acini

sublingual gland

Under the tongue

Smallest salivary gland

Largely mucous + serous acini