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Norma Basalis Externa  Inferior View of the Skull
BONES INVOLVED INNORMA BASALIS EXTERNA
1. Palatine process of the maxilla     - Incisive fossa and foramen2. Horizontal plate of palatine bone     - located here...
4. Vomer5. Medial pterygoid plate    - scaphoid fossa located on the lateral side of the    base: hamulus, at the lower ex...
6. Greater wing of sphenoid   - contains foramina ovale, and spinosum; angular   spine; and groove for auditory tube.
8.    Temporal bone     - Mandibular fossa,     - Petrotympanic fissure     - styloid process;     - stylomastoid foramen,...
9. Basilar part of occipital bone       - pharyngeal tubercle.10. Lateral part of occipital bone    - condyles,    - condy...
11. Squamous part of occipital bone    - external occipital protruberance with the    superior nuchal line,    - external ...
FORAMINA PRESENT INNORMA BASALIS EXTERNA
Name               Bone                ContentsIncisive canals    Palatine process of   Nasopalatine n.,                  ...
Name          Bone       ContentsCarotid       Temporal     Int. carotid a.                           Carotid plexusCondyl...
Name          Bone       ContentsMastoid        Temporal    Auricular br. of XcanaliculusTympanomastoid Temporal    Auricu...
Norma basalis externa
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Norma basalis externa

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Transcript of "Norma basalis externa"

  1. 1. Norma Basalis Externa Inferior View of the Skull
  2. 2. BONES INVOLVED INNORMA BASALIS EXTERNA
  3. 3. 1. Palatine process of the maxilla - Incisive fossa and foramen2. Horizontal plate of palatine bone - located here are the greater and lesser palatine foramina
  4. 4. 4. Vomer5. Medial pterygoid plate - scaphoid fossa located on the lateral side of the base: hamulus, at the lower extremity.6. Lateral pterygoid plate
  5. 5. 6. Greater wing of sphenoid - contains foramina ovale, and spinosum; angular spine; and groove for auditory tube.
  6. 6. 8. Temporal bone - Mandibular fossa, - Petrotympanic fissure - styloid process; - stylomastoid foramen, - mastoid process with mastoid notch and occipital groove, - carotid canal, - Jugular fossa - foramen lacerum,
  7. 7. 9. Basilar part of occipital bone - pharyngeal tubercle.10. Lateral part of occipital bone - condyles, - condylar fossa and canal, - hypoglossal canal
  8. 8. 11. Squamous part of occipital bone - external occipital protruberance with the superior nuchal line, - external occipital crest with the inferior nuchal line running laterally from its middle,
  9. 9. FORAMINA PRESENT INNORMA BASALIS EXTERNA
  10. 10. Name Bone ContentsIncisive canals Palatine process of Nasopalatine n., the maxilla Ant. Brs. Descending palatine a. and v.Greater palatine Palatine Greater palatine N. Descending palatine vesselsLesser palatine Palatine Lesser palatine n and aa.Stylomastoid Temporal Facial n., stylomastoid a.
  11. 11. Name Bone ContentsCarotid Temporal Int. carotid a. Carotid plexusCondyloid Occipital Vein from transverse sinusTympanic Temporal Tympanic br. ofcanaliculus IX
  12. 12. Name Bone ContentsMastoid Temporal Auricular br. of XcanaliculusTympanomastoid Temporal Auricular br. of Xfissure
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