Skull Quiz

1
Class Topics
Title Anat Phys 10/2/06
Objectives

• To retain knowledge of skull anatomy

• Skull Quiz
• Vertebrae
• Ribs
• We judge ourselves by what we feel capable of
  doing, while others judge us by what we have
  done.
• Henry Wadsworth Longfellow

Friday, December 18, 2020 341 PM
2
Class Assignments
By When
What

• Skull Anatomy Quiz 10/2/06
• Comparative Anatomy lab 10/2/06
• Due this class period
• Due next class period
• Due in the future

3
Skull Skeleton Quiz

• 3 parts
• 1. matching
• Make sure you know that some of these have more
  than one answer
• Bones (letters on left) may be used more than
  once
• 2. lab practical
• Go back one at a time (this may go slowly)
• 3. virtual lab practical
• We will go through these together
• Ask questions if needed

4
Hyoid

• Buried in tissue under styloid process of
  temporal bone
• Horseshoe shaped bone
• Attachment for tongue and neck muscles

5
Vertebrae

• Typical parts of vertebrae
• spinous process
• vertebral arch
• vertebral foramen
• body
• transverse process
• superior articular facet
• inferior articular facet

6
Vertebrae Fig 7-12

• As you age your vertebral column curves to adjust
  for walking upright as well as weight gains
• Cervical curve - concave
• Thoracic curve - convex
• Lumbar curve - concave
• Sacral curve - convex

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Vertebrae

• Cervical Vertebrae
• 1st atlas
• allows movement up and down
• Articulates with occipital condyles
• 2nd axis
• allow movement from side to side
• odontoid process - articulates with atlas
• Smaller and lighter than other vertebrae

8
Vertebrae

• Thoracic
• attach to ribs
• Lumbar
• very thick
• used to support much body weight
• many injuries occur here

9
Vertebrae

• Sacrum
• 5 fused vertebrae
• Posterior region of pelvis
• Coccyx
• 3 to 5 fused bones
• found at the end of the sacrum
• Will bend when sitting

10
Ribs

• True ribs
• attach to sternum via costal cartilage (hyaline
  cartilage)
• False ribs
• indirect or no connection with the sternum
• Floating ribs
• ribs with no connection with the sternum

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Sternum

• manubrium - superior region
• body - middle portion - largest
• Xiphoid process - inferior most region
• important in CPR

12

• How and why is the vertebral column curved?
• What are structural differences between cervical
  and lumbar vertebrae
• What types of cartilage are found in the ribs
  sternum and vertebrae? Why are they different?
• What purpose do the vertebrae and ribs serve?