Skeletal System (projections & Depressions) Flashcards
Functions of Bone System
support
protection
movement
mineral storage
blood cell formation
triglyceride energy storage (yellow marrow)
3 Main Cartilage
Hyaline (moveable joints)
Elastic (recoils)
Fibrocartilage (Absorbs shock)
Axial Skeleton
skull, vertebrae, and ribs
(protection and support)
Appendicular skeleton
appendages/arm and legs
(movement)
Bone Classification
long bone (humerus)
short bone (talus)
flat bone (sternum)
irregular bone (vertebra)
2 type of bone markings
projections - connection (sites of muscle and ligament attachments, helps form joints
depressions- passageways for blood vessels
projection- tuberosity
large rounded projection; may be roughened
projection- crest
narrow ridge of bone; usually prominent
projection- trochanter
very large, blunt, irregularly shaped process (only on femur)
projection- line
narrow ridge of bones; less prominent than a crest
projection- tubercle
small rounded projection or process
projection- epicondyle
raised area on or above condyle
projection- spine
sharp, slender, often pointed projection
projection- process
any bony prominence
projection- head
bony expansion carried on a narrow neck
projection- condyle
rounded articular projection
projection- ramus
armlike bar of bone
depression- facet
smooth, nearly flat articular surface
depression- groove
furrow
depression- fissure
narrow, slitlike opening
depression- foramen
round or oval opening through a bone
depression- notch
indentation at the edge of a structure
depression- meatus
canal-like passageway
depression- fossa
shallow, basinlike depression in a bone, often serving as an articular surface
