PRAC.6

Question 1

10

Answer 1

Frenulum linguae

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Question 2

3

Answer 2

• Radix linguae*
• Attaches to hyoid bone

Question 3

6

Answer 3

Papilla conicae

Question 4

C

Answer 4

Papilla fungiformis

Question 5

D

Answer 5

Papilla filiformis

Question 6

E

Answer 6

Papilla vallata

Question 7

F

Answer 7

Papillae foliata

Question 8

1

Answer 8

M. genioglossus

Origin: Symphysis et corpus mandibulae

Insertion: Opposite m. genioglossus

Action: Protrude tongue, retract apex

• To locate, search deep to the geniohyoid

Question 9

2

Answer 9

M. hyoglossus

Origin: Thyrohyoid, basilhyoid

Insertion: Radix linguae

Action: Retract and depress the tongue

• Located under the Hypoglossal Nerve

Question 10

3

Answer 10

M. styloglossus

Origin: Stylohyoid

Insertion: Middle of the tongue

Action: Retract and elevate the tongue

• Runs parallel to the Hypoglossal Nerve

Question 11

The dorsal surface of the tongue

Answer 11

Dorsum linguae

Question 12

The part of the tongue containing papillae

Answer 12

Pars gustatoria

Question 13

N. mandibularis (CN-V₃)

Answer 13

• Tactile, pain and thermal innervation
• Rostral 2/3 of the tongue

Question 14

Answer 14

Chorda tympanii

• Ex n. intermediofaciallis ex n. facialis (CN-VII)
• Mechanical + chemoreceptor fibre innervation
• Whole tongue

Question 15

Answer 15

N. glossopharyngeus (CN-IX)

Question 16

Answer 16

N. vagus (CN-X)

Question 17

List the innervating nerves of the tongue

Answer 17

• R. lingualis n. mandibularis (CN-V₃ )
• Chorda tympanii n. intermediofacialis
• N. glossopharyngeus (CN-IX)
• N. Vagus (CN-X)
• N. hypoglossus (CN-XII)

Question 18

Answer 18

A. lingualis

• Ex a. carotis externa ex a. carotis communis
• Becomes a. lingualis profundus as it reaches radix linguae
• Runs alongside n. hypoglossus (CN-XII)

Question 19

Answer 19

A. lingualis

• Ex a. carotis externa ex a. carotis communis
• Becomes a. lingualis profundus as it reaches radix linguae
• Runs alongside n. hypoglossus (CN-XII)

Question 20

13

Answer 20

A. lingualis

• Ex a. carotis externa ex a. carotis communis
• Becomes a. lingualis profundus as it reaches radix linguae
• Runs alongside n. hypoglossus (CN-XII)

Question 21

Answer 21

N. hypoglossus (CN-XII)

• Found by transecting m. mylohyoideus
• Runs alongside a. lingualis
• Motor nerve of the tongue

Question 22

Answer 22

N. lingualis

• Ex n. mandibularis (CN-V₃) ex n. trigeminus (CN-V)
• Sensory nerve to the tongue (not taste)

Question 23

Answer 23

N. sublingualis

• Ex n. lingualis
• Runs with d**uctus mandibularis et sublingualis

Question 24

Answer 24

A. sublingualis

Question 25

15

Answer 25

***A.*** ***sublingualis***

Question 26

8

Answer 26

**M. geniohyoideus** **Origin:** Rostromedial mandible **Insertion:** *Basihyoideus* **Action:** Raises floor of oral cavity

Question 27

*M. genioglossus* and *m. geniohyoideus* make up...

Answer 27

The perpendicular muscles of the tongue

Question 28

10

Answer 28

Superficial Longitudinal Fibres

Question 29

11

Answer 29

Deep Longitudinal Fibres

Question 30

12

Answer 30

Transverse Fibres

Question 31

13

Answer 31

Perpendicular Fibres

Question 32

Where should the cross section be made in order to view the internal musculature of the tongue?

Answer 32

About half way ## Footnote *Cut through frenulum sublingualis*

Question 33

11

Answer 33

**Rr. dorsales linguae**

Question 34

14

Answer 34

**A. sublingualis**

Question 35

15

Answer 35

A. submentalis