Muscles of Chewing And Swallowing Flashcards
Temporalis
O: temporal fossa
I: coronoid process and ramus of mandible
A: elevates mandible
N: trigeminal nerve V
Masseter
O: zygomatic arch
I: angle and ramus of mandible
A: elevates mandible
N: trigeminal nerve V
Pterygoids (medial, lateral)
O: pterygoid processes of sphenoid bone
I: medial ramus of mandible
A: medial excursion of mandible (chewing)
N: trigeminal nerve V
Diagastric
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
Mylohyoid
O: inferior margin of mandible
I: hyoid bone
A: elevates hyoid and tongue
N: trigeminal nerve
Omohyoid
O: superior border of scapula
I: hyoid bone
A: depresses hyoid
N: spinal nerves C1-3
SternoHYOID
O: manubrium of sternum
I: hyoid bone
A: depresses hyoid
N: spinal nerves C1-3
SternoTHYROID
O: manubrium of sternum
I: thyroid cartilage of larynx
A: depresses thyroid cartilage
N: spinal nerves C1-3
Genioglossus
O: medial surface of mandible around chin
I: body of tongue, hyoid bone
A: depressed and protracts tongue
N: hypoglossal nerve XII
Hyoglossus
O: body and greater horn of hyoid bone
I: side of tongue
A: depresses and retracts tongue
N: hypoglossal nerve XII
Palatoglossus
O: anterior surface of soft plate
I: side of tongue
A: elevates tomgue, depresses soft palate
N: branch of pharyngeal plexus X
Styloglossus
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
Superior pharyngeal constrictor
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)
Middle pharyngeal constrictor
O: horns of hyoid bone
I: median raphe attached to occipital bone
A: constrict pharynx to propel bolus into esophagus
N: X
Inferior pharyngeal constrictor
O: cricoid and thyroid cartilages of larynx
I: median raphe attached to occipital bone
A: constrict pharynx to propel bolus into esophagus
N: X
Palatopharyngeus
O: soft and hard palates
I: thyroid cartilage
A: elevate larynx
N: branches of pharyngeal plexus (IX & X)
Salpingopharyngeus
O: cartilage around the inferior portion of the auditory tube
I: thyroid cartilage
A: elevate larynx
N: X
Stylopharyngeus
O: styloid process of temporal bone
I: thyroid cartilage
A: elevate larynx
N: X
Levator veli palatini
O: petrous part of temporal bone, tissues around the auditory tube
I: soft palate
A: elevate soft palate
N: branches of pharyngeal plexus (X)
Tensor veli palatini
O: sphenoid spine, pterygoid progess, and tissues around the auditory tube
I: soft palate
A: elevate soft palate
N: V
