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14 Cards in this Set
- Front
- Back
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Superior Constrictor
O I N |
O:pterygomandular ligament
I:midline raphe N:Vagus |
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Middle Constrictor
O I N |
O:Hyoid bone and stylohyoid ligament
I:midline raphe N:Vagus |
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Inferior Constrictor
O I N |
O:Thyroid and cricoid cartilage
I:midline raphe N:Vagus |
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Pterygomandibular raphe (ligament)
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From posterior body of mandible to medial pterygoid plate
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2 things that take origin from pterygomandibular ligament
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Superior constrictor
Buccinator |
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Salpingopharyngeus
O I N |
O: Posterior aspect of auditory tube
I: Blends with wall of pharynx N: Vagus nerve |
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Stylopharyngeus
O I N |
O: Styloid process
I: Blends with wall of pharynx N: Glossalpharyngeal nerve IX (Nerve can be clearly seen on this muscle) |
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Palatopharyngeus
O I N |
O: Soft palate
I: Blends w/wall of pharynx N: Vagus nerve CN X |
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Sensory Innervation of pharynx
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Mucus membrane by glossopharyngeal nerve, lower portion of wall via internal laryngeal branch of vagus
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Blood supply to the pharynx
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Ascending pharyngeal artery
Maxillary artery branches Facial artery branches |
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Contributions to the pharyngeal plexus
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1) Vagus- motor (pharyngeal branches)
2) Glossopharyngeal nerve- sensor innervation, motor to stylopharyngeus from mucus membrane 3) Maxillary division of Trigeminal - sensory to nasopharynx 4) Sympathetic fibers (derived from SCG), Act on BV of pharyx 5) Parasympathetic - CN7 and Vagus to mucus glands of mucus membrane |
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Origin and path of Spinal accessory nerve (spinal levels)
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C1-C4 Ascend through foramen magnum, join vagus briefly in cranial vault, leave through jugular foramen and head to SCM and trapezius
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Articular surfaces involved in TMJ
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Head of condylar process of mandible
Mandibular fossa of temporal bone Articular tubercle of temporal bone Postglenoid tubercle of temporal bone |
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Division of joint and actions of TMJ spaces
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Superior joint (above articular disk)- gliding movement
Inferior joint space- Hinge movement |
