Tongue Muscles (O, I, A, Ns)

Question 1

Origin: Genioglossus

Answer 1

Superior part of symphysis menti

Question 2

Insertion: Genioglossus

Answer 2

• Entire dorsum of tongue

- Body of hyoid bone

Question 3

Action: Genioglossus

Answer 3

Inferior part: protrudes tongue
Middle part: depresses tongue
Superior part: draws back tip of tongue back and down

Question 4

N. Innervation: Genioglossus

Answer 4

Hypoglossus Nerve (CN XII)

Question 5

Origin: hypoglossus

Answer 5

body of greater horn of hyoid bone

Question 6

Insertion: hypoglossus

Answer 6

Inferior aspects of lateral part of tongue

Question 7

Action: hypoglossus

Answer 7

Depresses tongue

Question 8

N. Innervation: hypoglossus

Answer 8

Hypoglossus Nerve (CN XII)

Question 9

Origin: styloglossus

Answer 9

styloid process of temporal bone

Question 10

Insertion: styloglossus

Answer 10

side of tongue posteriorly, interdigitating with hypoglossus

Question 11

Action: styloglossus

Answer 11

Elevates and retracts tongue

Question 12

N. Innervation: styloglossus

Answer 12

Hypoglossus nerve (CN XII)

Question 13

Origin: palatoglossus

Answer 13

palatine aponeurosis

Question 14

Insertion: palatoglossus

Answer 14

Side of tongue

Question 15

Action: palatoglossus

Answer 15

elevates posteriorly part of tongue

Question 16

N. innervation: palatoglossus

Answer 16

Phargyneal branch of vagus nerve CN X