Palate and Oral Cavity

Question 1

Salpingopharyngeus origin

Answer 1

Inferior aspect of pharyngeal end of pharyngotympanic tube

Question 2

Salpingopharyngeus Insertion

Answer 2

pharyngeal wall

Question 3

Salpingopharyngeus action

Answer 3

Elevate pharynx

Question 4

Palatoglossus origin

Answer 4

Inferior surface of palatine aponeurosis

Question 5

Palatoglossus Insertion

Answer 5

lateral surface of tongue

Question 6

Palatoglossus Insertion

Answer 6

lateral surface of tongue

Question 7

Palatoglossus blood supply

Answer 7

Ascending palatine a. (Branch of facial a.)

Question 8

Palatoglossus Innervation

Answer 8

Vagus n. (CN X)- pharyngeal branch

Question 9

Palatoglossus action

Answer 9

• depresses the palate
• moves palatoglossal arches medially
• elevates back of tongue

Question 10

Palatopharyngeus origin

Answer 10

Upper surface of palatine aponeurosis

Question 11

Palatopharyngeus Insertion

Answer 11

pharyngeal wall

Question 12

Palatopharyngeus Innervation

Answer 12

vagus n. (CN X)

Question 13

Palatopharyngeus action

Answer 13

• elevate pharynx

- closes oropharyngeal isthmus

Question 14

Levator veli palatini origin

Answer 14

Petrous part of temporal bone

Question 15

Levator veli palatini Insertion

Answer 15

superior surface of palatine aponeurosis

Question 16

Levator veli palatini innervation

Answer 16

vagus n. (CN X) via pharyngeal branch to pharyngeal plexus

Question 17

Levator veli palatini action

Answer 17

elevate soft palate

Question 18

Tensor veli palatini origin

Answer 18

• Scaphoid fossa of sphenoid
• spine of sphenoid
• fibrous part of pharyngotympanic tube

Question 19

Tensor veli palatini insertion

Answer 19

palatine aponeurosis

Question 20

Tensor veli palatini innervation

Answer 20

Mandibular n. (V3) via branch to medial pterygoid m.

Question 21

Tensor veli palatini action

Answer 21

• tenses soft palate

- opens pharyngotympanic tube

Question 22

Styloglossus origin

Answer 22

Anterior surface of styloid process

Question 23

Styloglossus Insertion

Answer 23

• superior margin of hyoglossus

- intrinsic muscles

Question 24

Styloglossus Blood supply

Answer 24

Ascending pharyngeal a.

Question 25

Styloglossus Innervation

Answer 25

Hypoglossal n. (CN XII)

Question 26

Styloglossus action

Answer 26

- retract tongue | - pull back of tongue superiorly

Question 27

Genioglossus origin

Answer 27

Superior mental spines (on posterior surface of Mandibular symphysis)

Question 28

Genioglossus Insertion

Answer 28

- hyoid bone | - intrinsic mm.

Question 29

Genioglossus Blood supply

Answer 29

Lingual a.

Question 30

Genioglossus Innervation

Answer 30

hypoglossal n. (CN XII)

Question 31

Genioglossus action

Answer 31

- depress central part of tongue | - stick out tongue

Question 32

Hyoglossus origin

Answer 32

Hyoid bone

Question 33

Hyoglossus Insertion

Answer 33

Tongue

Question 34

Hyoglossus Blood supply

Answer 34

Lingual a.

Question 35

Hyoglossus Innervation

Answer 35

Hypoglossal n. (CN XII)

Question 36

Hyoglossus action

Answer 36

Depresses tongue

Question 37

Mylohyoid origin

Answer 37

Mylohyoid line of mandible

Question 38

Mylohyoid Insertion

Answer 38

- median fibrous raphe | - hyoid bone

Question 39

Mylohyoid Blood supply

Answer 39

Mylohyoid branch of inferior alveolar a.

Question 40

Mylohyoid Innveration

Answer 40

Nerve to mylohyoid from inferior alveolar branch of V3

Question 41

Mylohyoid Action

Answer 41

- supports and elevates floor of oral cavity | - depresses, elevates and pulls hyoid forward