Lecture 30 DA Flashcards Preview

Anatomy: Viscera and Visceral Systems > Lecture 30 DA > Flashcards

Flashcards in Lecture 30 DA Deck (55)
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1

What makes up the roof of the mouth?

The palatine process of the maxilla.

2

What is the floor of the nasal cavity?

Roof of the mouth.

3

What hangs off the palatine process posteriorly?

The soft palate

4

Where do the lesser palatine nerve run?

Runs posteriorly

5

What does the greater palatine nerve supply?

The mucosa and gingiva.

6

Where is the orbicularis oris?

Surrounds the mouth, and looks like hulk hogan's handlebar moustache.

7

Where is the buccinator?

Posterior to the orbicularis oris, and is the cheek muscle.

8

Where is the masseter?

Posterior to the buccinator, and attaches from the lower posterior corner of the mandible (angle of the mandible) to the zygomatic bone.

9

Where is the temporalis muscle?

Superior to the masseter, and attaches from the coronoid process of the mandible to the temporal bone superiorly.

10

Where is the coronoid process of the mandible found?

Superior to the angle of the mandible, and inferior to the zygoma.

11

What enters the incisor foramen?

The greater and lesser palatine arteries enter to supply the inferior quadrant of the nasal cavity.

12

Is the mandible bone deficient inferiorly?

Yes.

13

What bridges the mandible inferiorly?

Myohyoid muscle.

14

What overlays the myohyoid muscle at the midline?

Geniohyoid muscle.

15

What two nerves can be found along the two lateral projections of the mandible?

The inferior alveolar nerve and the lingual branch of the mandibular division of the trigeminal nerve.

16

Where does the hyoid bone sit?

Between the crease of the head and neck.

17

What is the oral vestibule?

The cavity between the buccinator mucle and the teeth on either side of the mouth.

18

What is the foramen caecum?

A depression in the sulcus terminalis.

19

Which direction does the apex of the foramen caecum face?

Posteriorly.

20

What is the foramen caecum a remnant of, and how is it formed?

Thyroglossal duct. Thyroid develops here and migrates down, dragging a duct with it. Obliterates after birth.

21

Between which arches are the tonsils found, and which arch is more anterior?

In the palatine region, there are two arches, palatoglossal (anterior) and palatopharyngeal (posterior), with the tonsils in between.

22

What is the sulcus terminalis?

A V shaped groove, seperating the tongue into a posterior 1/3rd and anterior 2/3rds.

23

What structure can be found just anterior to the sulcus terminalis?

Valate papillae.

24

What are foliate papillae?

They are ridge-like structures found lateral to the valate papillae.

25

What small papillae covers the anterior 2/3rds of the tongue?

Fungiform papillae, which is more dense towards the apex of the tongue.

26

What tonsil can be found posterior to the sulcus terminalis?

Lingual tonsil.

27

Where can tastebuds be found?

They are embedded within the walls of the papillae.

28

Which papillae has no tastebuds and is found all over the tongue? What is its function?

Filliform papillae. They give grip to the tongue.
Cats have an especially hairy tongue to act as a comb.

29

Where is the palatoglossus muscle found, and what are its attachments?

It is found posteriorly on either side of the tongue, and attaches from the palate to the tongue.

30

Where is the styloglossus muscle found, and what are its attachments?

It is posterior to the palatoglossus, and attaches from the styloid process to the tongue.