Muscles of Deep Neck

Question 1

Name muscle A.

Answer 1

Tensor veli palatini

Question 2

Describe the origin of the tensor veli palatini.

Answer 2

Scaphoid fossa and spine sphenoid bone and wall of auditory tube.

Question 3

Describe the insertion of the tensor veli palatini.

Answer 3

Palatine aponeurosis

Question 4

What is the action of the tensor veli palatini?

Answer 4

Opens auditory tube;
Tenses soft palate

Question 5

Describe the innervation of the tensor veli palatini.

Answer 5

Nerve to tensor veli palatini

Question 6

Describe the blood supply to the tensor veli palatini

Answer 6

Ascending and greater palatine arteries

Question 7

Name muscle B.

Answer 7

Palatoglossus muscle

Question 8

Describe the origin of the Palatoglossus muscle.

Answer 8

Palatine aponeurosis

Question 9

Describe the insertion of the Palatoglossus muscle

Answer 9

Lateral aspect of tongue

Question 10

Describe the action of the Palatoglossus muscle

Answer 10

Elevates tongue
Brings palatoglossal arches together

Question 11

Describe the innervation of the Palatoglossus muscle

Answer 11

Pharyngeal plexus (CN X)

Question 12

Describe the blood supply to the Palatoglossus muscle

Answer 12

Ascending palatine and ascending pharyngeal arteries

Question 13

Name muscle C.

Answer 13

Genioglossus muscle

Question 14

Describe the origin of the genioglossus muscle.

Answer 14

Superior mental spine of mandible

Question 15

Describe the insertion of the genioglossus muscle.

Answer 15

Body of hyoid bone and intrinsic muscles of tongue.

Question 16

Describe the action of the genioglossus muscle..

Answer 16

Protrudes and depresses tongue

Question 17

Describe the innervation of the genioglossus muscle.

Answer 17

Hypoglossal nerve (CN XII)

Question 18

Describe the arterial supply to the genioglossus muscle.

Answer 18

Sublingual and submental arteries

Question 19

Name muscle D.

Answer 19

Mylohyoid muscle

Question 20

Describe the origin of the mylohyoid muscle.

Answer 20

Mylohyoid line of mandible.

Question 21

Describe the action of the mylohyoid muscle.

Answer 21

Elevates floor of mouth

Question 22

Describe the insertion of the mylohyoid muscle.

Answer 22

Mylohyoid raphe and body of hyoid bone.

Question 23

Describe the innervation of the mylohyoid muscle.

Answer 23

Nerve to mylohyoid muscle (CN V3)

Question 24

Describe the arterial supply to the mylohyoid muscle.

Answer 24

Sublingual and submental arteries
Suprahyoid branch of lingual artery
Mylohyoid and mental branches of inferior alveolar artery

Question 25

Name muscle E.

Answer 25

Styloglossus muscle

Question 26

Describe the origin of the styloglossus muscle.

Answer 26

Stylohyoid process of temporal bone.

Question 27

Describe the insertion of the styloglossus muscle.

Answer 27

Blends with intrinsic muscles of tongue.

Question 28

Describe the action of the styloglossus muscle.

Answer 28

Elevates and retrudes tongue

Question 29

Describe the innervation of the styloglossus muscle.

Answer 29

Hypoglossal nerve (CN XII)

Question 30

Describe the blood supply to the styloglossus muscle.

Answer 30

Sublingual artery

Question 31

Name muscle F.

Answer 31

Palatopharyngeus muscle

Question 32

Describe the origin of the palatopharyngeus muscle.

Answer 32

Horizontal plate of palatine bone; Palatine aponeurosis

Question 33

Describe the insertion of the palatopharyngeus muscle.

Answer 33

Lateral wall of pharynx; Posterior border of thyroid cartilage

Question 34

Describe the action of the palatopharyngeus muscle.

Answer 34

Pulls pharynx in supperior, anterior and medal directions Tenses soft palate.

Question 35

Describe the innervation of the palatopharyngeus muscle.

Answer 35

Pharyngeal plexus (CN X)

Question 36

Describe the blood supply to the palatopharyngeus muscle.

Answer 36

Ascending palatine Greater palatine Ascending pharyngeal arteries

Question 37

Name muscle G.

Answer 37

Hyoglossus muscle

Question 38

Describe the origin of the hyoglossus muscle.

Answer 38

Greater horn of hyoid bone

Question 39

Describe the insertion of the hyoglossus muscle.

Answer 39

Blends with intrinsic muscles of the tongue

Question 40

Describe the action of the hyoglossus muscle.

Answer 40

Depresses tongue.

Question 41

Describe the innervation of the hyoglossus muscle.

Answer 41

Hypoglossal nerve (CN XII)

Question 42

Describe the blood supply of the hyoglossus muscle.

Answer 42

Sublingual and submental arteries

Question 43

Name muscle H.

Answer 43

Stylopharyngeus muscle

Question 44

Describe the origin of the stylopharyngeus muscle.

Answer 44

Styloid process of temporal bone

Question 45

Describe the insertion of the stylopharyngeus muscle.

Answer 45

Pharyngeal mucosa

Question 46

Describe the action of the stylopharyngeus muscle.

Answer 46

Elevates pharynx and larynx

Question 47

Describe the innervation of the stylopharyngeus muscle.

Answer 47

Stylopharyngeal branch of glossopharyngeal nerve (CN IX)

Question 48

Describe the blood supply of the stylopharyngeus muscle.

Answer 48

Ascending pharyngeal artery

Question 49

Name muscle I.

Answer 49

Levator veli palatini

Question 50

Describe the origin of the levator veli palatini.

Answer 50

Inferior surface of petrous part of temporal bone Cartilaginous portion of auditory tube

Question 51

Describe the insertion of the levator veli palatini.

Answer 51

Palatine aponeurosis

Question 52

Describe the action of the levator veli palatini.

Answer 52

Elevates and retracts soft palate

Question 53

Describe the innervation of the levator veli palatini.

Answer 53

Pharyngeal plexus (CN X)

Question 54

Describe the blood supply of the levator veli palatini.

Answer 54

Ascending palatine and greater palatine arteries

Question 55

Name muscle A.

Answer 55

Mylohyoid muscle

Question 56

Name muscle B.

Answer 56

Palatopharyngeus muscle

Question 57

Name muscle C.

Answer 57

Geniohyoid muscle.

Question 58

Describe the origin of the geniohyoid muscle.

Answer 58

Inferior mental spine of mandible

Question 59

Describe the insertion of the geniohyoid muscle.

Answer 59

Body of hyoid bone

Question 60

Describe the action of the geniohyoid muscle.

Answer 60

Depresses mandible Elevates hyoid bone

Question 61

Describe the innervation of the geniohyoid muscle.

Answer 61

First cervical nerve via hypoglossal nerve

Question 62

Describe the blood supply of the geniohyoid muscle.

Answer 62

Suprahyoid branch of lingual artery

Question 63

Name muscle D.

Answer 63

Stylopharyngeus muscle

Question 64

Name muscle E.

Answer 64

Styloglossus muscle

Question 65

Name muscle F.

Answer 65

Genioglossus muscle

Question 66

Name muscle G.

Answer 66

Palatoglossus muscle