Axial Skeleton Flashcards
Function of the Axial Skeleton
support the brain, spinal cord, and organs of the ventral cavity
Tuberosity
Large round projection, may be rough
Crest
Narrow ridge of the bone
Trochanter
Very large, blunt, irregular shaped process
Line
Narrow ridge on the bone
Tubercle
small rounded projection or process
epicondyle
raised area on or above a condyle
spine
sharp slender often pointed projection
process
any bony prominence
head
bony expansion carried on a narrow neck
facet
smooth nearly flat articular surface
condyle
rounded articular projection
ramus
armlike bar of a bone
fissure
narrow slitlike opening
foramen
round oval opening through a bone
Notch
indentation at the edge of a suture
meatus
canal like passageway
sinus
bone cavity filled with air, lined with mucous
fossa
Shallow basin like depression in a bone
How many vertebrae sections are there?
4
How many bones in each section
Cervical: 7
Thoracic: 12
Lumbar: 5
Sacral: 5 fused together
Coccyx: 4 fused together
True ribs
pairs 1-7, have their own costal cartilage
False ribs
pairs 8-10, attach indirectly to the sternum
Floating ribs
lats 2 pairs (11-12), no sternal attachment
