Bone Marking Terminology

crest

prominent (sticks out), elongated/projecting ridge of a bone

Ex: Iliac __ in pelvis

epicondyle

raised area of bone on or above a condyle

ex: medial __ of the humerus is above the trochlea

line

low narrow ridge, rougher texture

Ex: __ aspera in femur

process

prominent projection from a larger structure

ex: coracoid __ in scapula

spine

sharp, slender, often pointed projection of a bone

ex: __ of scapula

styloid

slender pointed bony projection, resembles a pen tip

ex: radial __ process on the radius bone in the forearm

Trochanter

Very large, blunt, irregularly shaped process

ONLY FOUND ON FEMUR

Ex: lesser __ in the femur

Tubercle

Small rounded projection or process (bump)

Ex: lesser __ in the humerus

Tuberosity

Large rounded projection; may be roughened

ex: ischial __ on pelvis (sitting bone)

Fissure

an opening; a groove; a split

ex: brain ___

Foramen

Round or oval opening/hole through a bone

ex: obturator___ in pelvis

Fossa

a shallow/hallow depression in a bone

ex: glenoid ___ in scapula

Groove

furrow/ narrow depression

ex: radial ___ of humerus

Meatus

canal-like passageway

ex: urethral ___ (where urine leaves the body)

Condyle

Rounded process that usually forms an articulation with another bone

ex: capitulum and trochlea are considered the humeral ___ bc they connect the humerus to the forearm (radius and ulna)

Facet

smooth, nearly flat articular surface

Head

rounded, prominent expansion at the end of a bone that connects with another bone to form a joint

ex: ___ of radius

Ramus

arm-like bar of bone

ex: Ischial ___

Articulation

junction of 2+ bones

ex: joint

Suture

immovable fibrous joint that primarily connects the flat bones of the skull