Muscles of Chewing And Swallowing

Question 1

Temporalis

Answer 1

O: temporal fossa
I: coronoid process and ramus of mandible
A: elevates mandible
N: trigeminal nerve V

Question 2

Masseter

Answer 2

O: zygomatic arch
I: angle and ramus of mandible
A: elevates mandible
N: trigeminal nerve V

Question 3

Pterygoids (medial, lateral)

Answer 3

O: pterygoid processes of sphenoid bone
I: medial ramus of mandible
A: medial excursion of mandible (chewing)
N: trigeminal nerve V

Question 4

Diagastric

Answer 4

O: internal, distal margin of mandible, mastoid notch of temporal bone
I: hyoid bone
A: elevates hyoid and depresses mandible
N: trigeminal V and facial VII nerves

Question 5

Mylohyoid

Answer 5

O: inferior margin of mandible
I: hyoid bone
A: elevates hyoid and tongue
N: trigeminal nerve

Question 6

Omohyoid

Answer 6

O: superior border of scapula
I: hyoid bone
A: depresses hyoid
N: spinal nerves C1-3

Question 7

SternoHYOID

Answer 7

O: manubrium of sternum
I: hyoid bone
A: depresses hyoid
N: spinal nerves C1-3

Question 8

SternoTHYROID

Answer 8

O: manubrium of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage
N: spinal nerves C1-3

Question 9

Genioglossus

Answer 9

O: medial surface of mandible around chin
I: body of tongue, hyoid bone
A: depressed and protracts tongue
N: hypoglossal nerve XII

Question 10

Hyoglossus

Answer 10

O: body and greater horn of hyoid bone
I: side of tongue
A: depresses and retracts tongue
N: hypoglossal nerve XII

Question 11

Palatoglossus

Answer 11

O: anterior surface of soft plate
I: side of tongue
A: elevates tomgue, depresses soft palate
N: branch of pharyngeal plexus X

Question 12

Styloglossus

Answer 12

O: styloid process of temporal bone
I: along the side to tip and base of tongue
A: retracts tongue, elevates sides
N: hypoglossal nerve XII

Question 13

Superior pharyngeal constrictor

Answer 13

O: pterygoid process of sphenoid, medial surfaces of mandible, and side of the tongue
I: median raphe attached to occipital bone
A: constrict pharynx to propel bolus into esophagus
N: (branches of pharyngeal plexus (X)

Question 14

Middle pharyngeal constrictor

Answer 14

O: horns of hyoid bone
I: median raphe attached to occipital bone
A: constrict pharynx to propel bolus into esophagus
N: X

Question 15

Inferior pharyngeal constrictor

Answer 15

O: cricoid and thyroid cartilages of larynx
I: median raphe attached to occipital bone
A: constrict pharynx to propel bolus into esophagus
N: X

Question 16

Palatopharyngeus

Answer 16

O: soft and hard palates
I: thyroid cartilage
A: elevate larynx
N: branches of pharyngeal plexus (IX & X)

Question 17

Salpingopharyngeus

Answer 17

O: cartilage around the inferior portion of the auditory tube
I: thyroid cartilage
A: elevate larynx
N: X

Question 18

Stylopharyngeus

Answer 18

O: styloid process of temporal bone
I: thyroid cartilage
A: elevate larynx
N: X

Question 19

Levator veli palatini

Answer 19

O: petrous part of temporal bone, tissues around the auditory tube
I: soft palate
A: elevate soft palate
N: branches of pharyngeal plexus (X)

Question 20

Tensor veli palatini

Answer 20

O: sphenoid spine, pterygoid progess, and tissues around the auditory tube
I: soft palate
A: elevate soft palate
N: V