23.2

Question 1

The ___ muscle forms the floor of the mouth by attaching to the internal surface of the ___ and extending back to the ___ bone.

Answer 1

Mylohyoid muscle
Mandible
Hyoid bone

Question 2

The ___ muscle is superior to the mylohyoid (floor), from the genial tibercles of the mandible to the hyoid.

Answer 2

Geniohyoid muscle

Question 3

2 ___ muscles are inferior to the mylohyoid muscle.

Answer 3

Digastric

Question 4

The tongue is divided into an anterior _/3 and posterior _/3. The division is at a V shaped groove called the ___ ___.

Answer 4

Anterior 2/3s
Posterior 1/3
Sulcus terminalis

Question 5

At the apex of sulcus terminalis is a depression called ___ ___ - where the thyroglossal duct develops before it descends.

Answer 5

Foramen caecum

Question 6

The posterior 1/3 of the tongue is highly ___ - due to large nodules of lymphoid tissue under the mucosa called ___ tonsils.

Answer 6

Nodular

Lingual

Question 7

There are _ types of papillae on the tongue. What are they?

Answer 7

4
Vallate papillae - line the anterior aspect of sulcus terminalis
Fungiform papillae - small and red on anterior 2/3s of tongue
Foliate papillae - posterolateral aspect of tongue
Filiform papillae - small and pointy

Question 8

There are two general types of muscles of the tongue - ___ or ___. What is the function of each group?

Answer 8

Extrinsic - position of tongue

Intrinsic - shape of tongue.

Question 9

The intrinsic muscles of the tongue have attachments ___ the tongue, and change the ___ of the tongue.

Answer 9

Attachments IN the tongue

Change the shape of the tongue