HEAD & NECK: Tongue muscles

Question 1

INTRINSIC TONGUE MUSCLES

Superior longitudinal muscle - origin

Answer 1

Submucosa of posterior tongue, Lingual septum

Question 2

INTRINSIC TONGUE MUSCLES

Superior longitudinal muscle - insertion

Answer 2

Apex/Anterolateral margins of tongue

Question 3

INTRINSIC TONGUE MUSCLES

Superior longitudinal muscle - innervation

Answer 3

Hypoglossal nerve (CN XII)

Question 4

INTRINSIC TONGUE MUSCLES

Superior longitudinal muscle - function

Answer 4

Retracts and broadens tongue, Elevates apex of tongue

Question 5

INTRINSIC TONGUE MUSCLES

Inferior longitudinal muscle - origin

Answer 5

Root of tongue, Body of hyoid bone

Question 6

INTRINSIC TONGUE MUSCLES

Inferior longitudinal muscle - insertion

Answer 6

Apex of tongue

Question 7

INTRINSIC TONGUE MUSCLES

Inferior longitudinal muscle - innervation

Answer 7

Hypoglossal nerve (CN XII)

Question 8

INTRINSIC TONGUE MUSCLES

Inferior longitudinal muscle - function

Answer 8

Retracts and broadens tongue, Lowers apex of tongue

Question 9

INTRINSIC TONGUE MUSCLES

Transverse muscle - origin

Answer 9

Lingual septum

Question 10

INTRINSIC TONGUE MUSCLES

Transverse muscle - insertion

Answer 10

Lateral margin of tongue

Question 11

INTRINSIC TONGUE MUSCLES

Transverse muscle - innervation

Answer 11

Hypoglossal nerve (CN XII)

Question 12

INTRINSIC TONGUE MUSCLES

Transverse muscle - function

Answer 12

Narrows and elongates tongue

Question 13

INTRINSIC TONGUE MUSCLES

Vertical muscle - origin

Answer 13

Root of tongue, Genioglossus muscle

Question 14

INTRINSIC TONGUE MUSCLES

Vertical muscle - insertion

Answer 14

Lingual aponeurosis

Question 15

INTRINSIC TONGUE MUSCLES

Vertical muscle - innervation

Answer 15

Hypoglossal nerve (CN XII)

Question 16

INTRINSIC TONGUE MUSCLES

Vertical muscle - function

Answer 16

Broadens and elongates tongue

Question 17

EXTRINSIC TONGUE MUSCLES

Genioglossus - origin

Answer 17

Superior mental spine of mandible

Question 18

EXTRINSIC TONGUE MUSCLES

Genioglossus - insertion

Answer 18

Entire length of dorsum of tongue/Lingual aponeurosis, Body of hyoid bone

Question 19

EXTRINSIC TONGUE MUSCLES

Genioglossus - innervation

Answer 19

Hypoglossal nerve (CN XII)

Question 20

EXTRINSIC TONGUE MUSCLES

Genioglossus - function

Answer 20

Bilateral contraction - Depresses and protrudes tongue;
Unilateral contraction - Deviates tongue contralaterally

Question 21

EXTRINSIC TONGUE MUSCLES

Hyoglossus - origin

Answer 21

Body and greater horn of hyoid bone

Question 22

EXTRINSIC TONGUE MUSCLES

Hyoglossus - insertion

Answer 22

Inferior/Ventral parts of lateral tongue

Question 23

EXTRINSIC TONGUE MUSCLES

Hyoglossus - innervation

Answer 23

Hypoglossal nerve (CN XII)

Question 24

EXTRINSIC TONGUE MUSCLES

Hyoglossus - function

Answer 24

Depresses and retracts tongue

Question 25

EXTRINSIC TONGUE MUSCLES Styloglossus - origin

Answer 25

Anterolateral aspect of styloid process (of temporal bone), Stylomandibular ligament

Question 26

EXTRINSIC TONGUE MUSCLES Styloglossus [Longitudinal part] - insertion

Answer 26

Blends with inferior longitudinal muscle

Question 27

EXTRINSIC TONGUE MUSCLES Styloglossus [Oblique part] - insertion

Answer 27

Blends with hyoglossus muscle

Question 28

EXTRINSIC TONGUE MUSCLES Styloglossus - innervation

Answer 28

Hypoglossal nerve (CN XII)

Question 29

EXTRINSIC TONGUE MUSCLES Styloglossus - function

Answer 29

Retracts and elevates lateral aspects of tongue

Question 30

EXTRINSIC TONGUE MUSCLES Palatoglossus - origin

Answer 30

Palatine aponeurosis of soft palate

Question 31

EXTRINSIC TONGUE MUSCLES Palatoglossus - insertion

Answer 31

Lateral margins of tongue, Blends with intrinsic muscles of tongue

Question 32

EXTRINSIC TONGUE MUSCLES Palatoglossus - innervation

Answer 32

Vagus nerve (CN X) (via branches of pharyngeal plexus)

Question 33

EXTRINSIC TONGUE MUSCLES Palatoglossus - function

Answer 33

Elevates root of tongue, Constricts isthmus of fauces