Norma Basalis OBJECTIVES At the end of this lecture, students will ...
Norma Basalis OBJECTIVES At the end of this lecture, students will ...
Norma Basalis OBJECTIVES At the end of this lecture, students will ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Middle Part<br />
• Commences just behind hard palate & ext<strong>end</strong>s to level <strong>of</strong> anterior<br />
border <strong>of</strong> foramen magnum.<br />
• Choanae<br />
• Medial pterygoid plate<br />
– Scaphoid fossa for origin <strong>of</strong> tensor veli palatini muscle<br />
– Pterygoid hamulus, around which t<strong>end</strong>on <strong>of</strong> tensor veli palatini<br />
muscle turns<br />
• Lateral pterygoid plate<br />
– Its lateral surface affords attachment to pterygoideus lateralis<br />
muscle<br />
• Pharyngeal tubercle<br />
– Near center <strong>of</strong> basilar portion <strong>of</strong> occipital bone<br />
– For attachment <strong>of</strong> fibrous raphe <strong>of</strong> pharynx<br />
– Depressions on each side for insertions <strong>of</strong> rectus capitis anterior<br />
& longus capitis<br />
• Foramen ovale<br />
– <strong>At</strong> base <strong>of</strong> lateral pterygoid plate<br />
– Through which passes mandibular nerve, accessory meningeal<br />
artery, & lesser petrosal nerve<br />
• Sphenoidal spine<br />
– Lateral to foramen ovale<br />
– <strong>At</strong>tachment to sphenomandibular ligament & tensor veli palatini<br />
• Foramen spinosum<br />
– Posterior & somewhat lateral to foramen ovale<br />
– Transmits middle meningeal vessels & small meningeal branch<br />
<strong>of</strong> mandibular nerve<br />
• Mandibular fossa<br />
– Lateral to sphenoidal spine
Change language