Tongue T1

Question 1

The oral cavity is bounded anteriorly by …… and laterally by ……

Answer 1

lips
cheeks

Question 2

cheeks are continuous with lips at ?

Answer 2

nasolabial grooves

Question 3

Internally cheeks are lined by
Externally cheeks are covered by

Answer 3

• lined by mucous membrane
• covered by skin, buccal pad of fat, and buccopharyngeal fascia

Question 4

Define The vestibule (labial cavity), mention its site

Answer 4

• It is a narrow cleft like space
  -Lies between the lips & cheeks (extrnally) and
  the gum (internally)
• It receives the opening of the parotid duct opposite the upper 2nd molar tooth

Question 5

Mouth cavity proper (Buccal cavity) lies within?

Answer 5

within the alveolar arches, gums, and teeth

Question 6

What are the Boundaries of mouth cavity proper
Ant & sides/post

Answer 6

• Anteriorly & sides: are formed by the dental arches carrying the teeth
- It communicates with the vestibule behind the 3rd molar tooth,when you close your lips
•Posteriorly : communicate with the oropharynx through “oropharyngeal isthmus” (the junction between mouth & the pharynx)

Question 7

What are the Boundaries of mouth cavity proper
Roof/Floor

Answer 7

• Roof: Formed by both the hard & the soft palate
• Floor:
• Dorsum (upper surface ) of anterior 2/3 of tongue
• lower surface of tongue
• Below tongue (undersurface of the tongue)
• Myelohyoid muscle

Question 8

Under Surface of the tongue have for four imp structures what are they?

Answer 8

Frenulum lingulae in the midline
Orifice of the Submandibular Duct
Sublingual Fold
Deep lingual artery and vein

Question 9

Frenulum lingulae in the midline connects between which two structures?

Answer 9

Connects the under surface of the tounge to the floor of the mouth

Question 10

submandibular duct opens on?

Answer 10

Opens on each side of the fernulum lingulae

Question 11

Sublingual Fold is formed by?

Answer 11

By the underlying Sublingual salivary gland

Question 12

Deep lingual artery and vein are on?

Answer 12

Each side of Frenulum lingulae

Question 13

Define Ankyloglossia/Tongue tie

Answer 13

• A case in which the Frenulum extends towards the tip of the tongue
• It is a congenital oral anomaly present at birth that restricts the tongue’s range of motion and may interfere with normal speech

Question 14

What’s the procedure in case of Tounge Tie?

Answer 14

frenotomy or frenulectomy is quick procedure often is done without anesthesia in babies younger than 3 months old because the area has few nerve endings or blood
vessels

Question 15

What’s the structure of tounge?

Answer 15

A muscular organ formed of mass of muscles covered by an envelope mucous membrane

Question 16

Site of the tounge?

Answer 16

lies on the floor of the oral cavity filling it almost completely.
• Its anterior 2/3 lies in the mouth (oral part).
• Its posterior 1/3 lies in the pharynx (pharyngeal part).

Question 17

The tongue is essential for several Important Functions, Name them?

Answer 17

1. Normal articulation of the jaw
2. Manipulation of food
3. Swallowing
4. Taste
5. Production of normal Speech

Question 18

What are the Parts of the Tongue?

Answer 18

• Tips and sides
• Root (posterior)
• Dorsal surface (upper)
• Ventral (Lower)

Question 19

Tips and sides of the tounge lies opposite to?

Answer 19

Gums and teeth

Question 20

What passes through The Root of the tounge

Answer 20

it is the post. part through which pass the muscles Connecting the tongue to the hyoid bone & mandible

Question 21

Dorsal sur of the tounge is divided by?

Answer 21

It is divided by a V- shaped groove (sulcus terminalis) into: - - ant. 2l3 (oral part)
- post.1/3 (pharyngeal part)

Question 22

The apex of the sulcus terminalis is directed? Presenting what?

Answer 22

directed posteriorly &presents a foramen called the foramen Caecum

Question 23

The Ventral surfaceof the tounge is related to?

Answer 23

It is related to the Floor of mouth & is Covered by a thin
transparent mucosa

Question 24

The Ventral surfaceof the tounge shows what?

Answer 24

• A raised fold of mucosa in the middle line (Frenulum lingulae)
• On each side of the middle line, a deep lingual vein passes deep to the mucosa
• lateral to the deep lingual v. there is the fimbriated fold- which is a raised fold of mucosa having fimbria

Question 25

Ant. 2/3 of the dorsum of the tongue papillae are?

Answer 25

1. Filliform papillae: small&numerous
2. Fungiform papillae: at the tip & margins
3. Foliate papillae :small lateral folds, poorly developed in humans
4. Circumvallate papillae:lying infront of the sulcus terminalis & full of taste bud

Question 26

Post. 1/3 of the dorsum of the tongue papillae?

Answer 26

No papillae shown

Question 27

are there any lingual tonsils on the Post. 1/3 of the dorsum of the tongue

Answer 27

Yes, Present

Question 28

are there any lingual tonsils on the Ant. 2/3 of the dorsum of the tongue

Answer 28

No, absent

Question 29

Nerve supply of the buccal part of the tongue

Answer 29

2 Nerves:
1. Lingual Nerve: carries general sensation
2. Chorda tympani: carries taste sensation

Question 30

Nerve supply of the Pharyngeal part of the tongue

Answer 30

One nerve:
Glossopharyngeal nerve: carries all sensations

Question 31

Position of both palatine and pharyngeal part?

Answer 31

Palatine part: Looks upward & can be seen from the mouth
pharyngeal part: Looks backwars (forming the anterior wall of the oropharynx)

Question 32

Lingual papillae, particularly filiform papillae function?

Answer 32

Thry are thought to increase the surface area of the tongue and to increase the area of contact and friction between the tongue and food