BONE MARKINGSEvery bump, groove, and hole has

a name on your bones

p.137Table 7.2

BONE MARKINGS• PROJECTIONS:• Processes that

protrude out of bone

• DEPRESSIONS• Cavities that indent

into bone

PROCESS

• PROCESS:A relatively large projection or prominent bump

Joint Projections

• Condyle: Rounded articular projection

Condyle

A few slides ahead not the EPICONDYLE…Which would be found above a condyle

Joint Projections• Head: bony

expansion on a narrow neck

• Facet: smooth, nearly flat articular surface

Joint Projections

• Ramus: Armlike bar of bone

Ligament/Tendon Projections

Crest: Narrow ridge of bone (Line: smaller than a crest)

Epicondyle: Raised area on or above a condyle

ULNA

Tubercle: Small rounded projection

Tuberosity: large rounded or roughened projection

Trochanter: very large, blunt projection

(only on femur)

Proximal Tibia

PROJECTIONS

Spine: Sharp, pointed projection

Thoracic Vertebrae

MARKINGS ON THE CRANIUM

Fontanel : soft spot in the skull (infant skull)…cranial bones have not yet fused

• Suture: interlocking line at the union of 2 bones; fibrous joint in the skull

DEPRESSIONS

• Allow blood vessels or nerves to pass through.

Meatus: (me - A- tus) Canal or tube

Depressions

Fossa: shallow basin

Fissure: narrow, slit-like opening

Depressions

Sinus: Cavity within a bone; filled with air and lined with mucous membranes

Foramen: Round or oval opening

Foramen Magnum

DEPRESSIONS

• FOVEA: a small pit or depression

Depressions

Sulcus, Groove or Furrow: a shallow depression

Review: (note on your index cards which markings are projections & which are depressions)

Projections

1) Process 2) Condyle3) Head4) Facet5) Ramus6) Crest7) Epicondyle8) Tubercle9) Tuberosity10) Trochanter11) Spine

Depressions

1) Meatus2) Fossa3) Fovea 4) Fissure5) Foramen 6) Sinus7) Fontanel 8) Suture9) Sulcus or Groove or

Furrow