Practice Identifying Bone Markings:
Use in conjuction with your bone
markings to know worksheet
Bone markings:
Every bone (or matching pair of bones) in the body looks different from
every other bone (or matching pair) because of bone markings.
There are three basic types of bone markings:
Processes that are sites of muscle and ligament attachment.
Processes that help to form joints.
Depressions, cavities, and openings that allow blood vessels and nerves to pass
through a bone.
Generally, a bone process is an extension from the main body of a bone that
serves as a site of muscle attachment or helps form a joint.
Here are the common processes
that function as sites of muscle
and ligament attachment:
Tuberosity: A large rounded
projection that may be
roughened.
Crest: Narrow, usually
prominent, ridge of bone.
Condyle: Rounded articular
projection.
Epicondyle: Raised area on or
above a condyle.
Spine: Sharp, slender,
often pointed process.
Tubercle: Small rounded
process.
Trochanter: Very large,
blunt, irregularly shaped
process.
Line: Narrow ridge of bone
that is less prominent
than a crest.
Ramus: Arm-like bar of a
bone.
Here are the common processes that function to help form
joints:
Head: Bony expansion carried on a narrow neck.
Facet: Smooth, nearly flat articular surface.
Condyle: Rounded articular projection.
Fossa: Shallow, basinlike depression in a bone, often serving
as an articular surface.
Here are the common depressions and openings that allow blood vessels
and nerves to pass through bones:
Meatus: Canal-like passageway.
Sinus: Cavity within a bone, filled with air and lined with mucous
membrane.
Groove: Furrow.
Fissure: Narrow, slit-like opening.
Foramen: Round or oval opening through a bone.
Bone Markings to
Identify
1
2
4
3
2
8.
Name the skull bone
shown below
8
5
9. Name the
suture
9
Ignore the
numbers on the
bone. Use
numbers on
arrows.
Superior
10
11
Lateral
12
13. Name the specific bone
below
14. Name the specific bone
below
15. Name bone
marking.
15
15
4
Superior
16
24
17
Posterior view
18
17
19
20
22
23
24
25
Bonus: Name the
markings
Bonus 1
Bonus 2