Week 5 Flashcards
Axial Skeleton
Bones of the middle skeleton
Appendicular Skeleton
limbs that attach to the axial skeleton
How many bones in the Body?
206
Mandible
-irregular bone
-only bone in the skull that is moveable
Suture
Joint between 2 bones
Function of holes in skull/sinus
make the skull lighter
2 Ways the spine resists compression
- Intervertebral Discs
2.Curvatures
Intervertebral Discs
-between the vertebrae
-resists compression
-allows for movement
Parts of the Vertebrae
- Cervical (7)
- Thoracic (12)
- Lumbar (5)
- Sacrum
- Coccyx (tailbone)
How many curvatures are in the spine?
4
Primary curvature
-Curves forward
-think fetal position
-thoracic spine & sacrum
Secondary Curvature
-Curves Backwards
-happens after birth
-Cervical & Lumbar
What kind of bone is ribs?
flat bone
True Ribs
-First 7
-attach directly to sternum
False Ribs
- Ribs 8-12
- Do not directly attach to sternum
Floating Ribs
- Ribs 11 & 12
-Protect kidneys - do not attach to sternum AT ALL