Chapter 7 & 8

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Author:
FlibbityFlam
ID:
151059
Filename:
Chapter 7 & 8
Updated:
2012-04-30 01:10:55
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axial skull cranial bones
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Description:
The Axial and Appendicular Skeleton
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  1. The Axial Skeleton forms the longitudinal axis of the body and has 80 bones. What are the four different areas associated with this area?
    • The skull
    • Bones associated w/ the skull: 6 auditory ossicles + the hyoid bone
    • The vertebral column
    • The thoracic cage
  2. The skull consists what bones?
    8 cranial + 14 facial bones
  3. The vertebral column consists of which different bones?
    • 24 vertebrae
    • sacrum
    • coccyx
  4. The thoracic cage consists of:
    • 24 ribs
    • The sternum
  5. What are the functions of the Axial Skeleton?
    • Supports and protects organs in body cavities
    • Attaches to muscles of head, neck, and trunk
    • Performs respiratory movements
    • Stabilizes parts of appendicular skeleton
  6. The skull protects:
    • The brain
    • Entrances to respiratory
    • Entrance to digestive system
  7. The skull contains # bones and are connected by immovable joints called ________.
    • 22
    • Sutures
  8. There are 8_______ bones that form the braincase or cranium. There are also # ______ bones that serve what purpose?
    • Cranial
    • 14
    • Facial
    • Facial muscle attachment and protect/support entrances to digestive & respiratory tracts.
    • Face 14
    • Maxillary bones..............2
    • Palatine bones................2
    • Nasal bones....................2
    • Inferior nasal conchae....2
    • Zygomatic bones............2
    • Lacrimal bones..............2
    • Vomer...........................1
    • Mandible......................1
    • Cranium 8
    • Occipital bone......1
    • Parietal bones......2
    • Frontal bone........1
    • Temporal bones...2
    • Sphenoid.............1
    • Ethmoid..............1
    • Associated bones 7
    • Hyoid bone.........1
    • Auditory ossicles enclosed in temporal bones (detailed in Ch. 17)..........6
  9. What are the functions of the temporal bones?
    • Part of lateral walls of cranium and zygomatic arches
    • Articulate w/ mandible
    • Surround and protect inner ear
    • Attach muscles of jaws and head
  10. What are the articulations of the temporal bones?
    • Zygomatic bone
    • Sphenoid
    • Parietal bone
    • Occipital bone
    • Mandible
  11. What are the different marking on the temporal bone?

    • 1. Zygomatic process
    • 2. Squamous
    • 3. Petrous part
    • 4. Internal acoustic meatus
    • 5. Styloid process
    • 6. Mastoid process
    • 7. Mandibular fossa
    • 8. External acoustic meatus
  12. What is the most common functional problem that is associated with the cranial bones and passageways?
    • TMJ syndrome
    • High mobility in joint between temporal bone and mandible needed for chewing/talking
    • Spasms in jaw muscle (typically from teeth grinding or stress) pulls mandible out of alignment causing pain
    • Cycle of pain -- spasms -- misalignment -- pain -- etc = temporomandibular joint syndrome
  13. The Nasal Complex is made up of what two parts?
    • Bones of the Nasal Cavities
    • Paranasal Sinuses
  14. Where in the sinuses is the Paranasal Sinuses located and explain what function it serves.
    • Functions
    • Air-fulled cavities that decrease the weight of the skull
    • - Lined with mucous membranes
    • - Protect the entrances of the respiratory system, humidifies & warms air and traps particulates
    • Sinuses in: frontal, maxillary sphenoid, ethmoid, palatine (tiny)
  15. What is a common functional problem with Paranasal Sinuses?
    Common place to get bacterial or viral infections or allergens in the sinuses causing swelling and pain
  16. The Vertebral Column (spine) protects the spinal cord and supports the head and body. It consists of # bones.
    26
  17. There are # vertebrae and includes 7 _________ , 12 ________ , and 5 _________.
    24 vertebrae

    • 7 Cervical
    • 12 Thoracic
    • 5 Lumbar

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