Cont. BIO 163 Skeletal

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Cont. BIO 163 Skeletal
2010-09-22 09:22:12
skull facial bones

starting from Temporal
Show Answers:

  1. What are the structures of the temporal bones?
    • External acoustic meatus (EAR)
    • Styloid process ('needle-like' structure attached below ear)
    • Mastoid process ( large process anterior to the external acoustic meatus 'ear' and inferior to the zygomatic process)
    • Zygomatic process ('long horizontal' process starting from temporalzygomatic suture)
    • Mandibular fossa (socket where the mandibular condyle 'jaw bone' connects)
  2. Where is the sphenoid sinus located?
    anterior to the temporal bone inferior to the sphenoid bone
  3. Which bone is the deepest cranial bone and the most difficult to see from standard views of the skull? NOTE: Located anterior to the sphenoid bone and posterior to the nasal bones
    Ethmoid bone
  4. What bone is considered the "lower jaw bone"?
  5. what are the 2 main structures that the mandible consists of?
    A central body (chin) and 2 "arms"
  6. What are they 2 "arms" of the mandible called?
    Mandibular Rami


    • RAMI-plural
    • RAMUS-singular
  7. Where the mandibular rami turn 'superiorly' is called what?
    mandibular angle
  8. What are the 2 processes of the mandibular angle?
    • Coronoid process (anterior) note: connects to zygomatic "region"
    • Mandibular condyle (posterior) note: connects to temporal "region"
  9. The are between the coronoid process and the mandibular condyle is called?
    Mandibular notch
  10. What is the "upper jaw bones" that form part of the orbit and the anterior portion of the hard palate (via palatine processes)?

    NOTE: 2 fused maxillae make up the upper jaw bone
  11. Within the walls of the maxillae are cavities which are called....?
    Maxillary sinuses
  12. What is the alveolar process?
    tooth sockets

    NOTE: need to look up gomphosis joints and periodontal ligaments
  13. What are the tiny bones called in the medial part of the orbit, where they form part of the structure that drains tears produced by the ________ gland of the eye.
    Lacrimal bones lacrimal gland
  14. What are the 2 bones that form the anterior framework of the bridge of the nose?
    Nasal bones
  15. What is the single bone called that forms the inferior portion of the bony nasal septum
  16. What forms part of the lateral walls of the nasal cavity. located below and behind the nasal cavity
    Inferior nasal conchae
  17. The 2 bones form the posterior part of the hard plate and the posterolateral walls of the nasal cavity are ...?
    Palatine bones
  18. what are the 2 bones that form the bulk of the cheek and a significant portion of the "cheekbone"
    zygomatic bones ( the 'cheekbone' is also called the zygomatic arch)
  19. Where is the Hyoid?
    (in the neck) held in place in the superior neck by the muscles and ligaments, and it helps to form part of the framework for the larynx (voice box). Also serves as an attachment site for the muscles of the tongue and aids in swallowing.