Lab 2.1 - Bone Features

Articulating Surfaces

• Condyle

• Facet

• Head

• Trochlea

Condyle

a round articular projection; often articulates with a corresponding fossa

Facet

a smooth, nearly flat articular surface

Head

a prominent, rounded expansion carried on a narrow neck

Trochlea

a smooth, grooved, pulley-like process

Depressions

• alveolus (alveoli)

• fossa (fossae)

• sulcus

  • fovea

Alveolus

a deep pit or socket

Fossa

a shallow depression, often serving as an articular surface

sulcus

a narrow groove

fovea

a small pit

Projections (for Tendon and Ligament Attachment)

• crest

• epicondyle

• line

• process

• protuberance

• ramus (rami)

• spine

• trochanter

• tubercle

• tuberosit

Crest

a narrow, prominent, ridgelike projection

Epicondyle

a raised area on or above a condyle (rounded articular projection)

Line

a narrow ridge of bone; less prominent than a crest

Process

any bony prominence

Protuberance

a bony outgrowth or protruding part

Ramus

an angular extension of a bone relative to the rest of the structure

Spine

a sharp, slender, often pointed projection

Trochanter

a large, irregularly shaped projection found only on the femur

Tubercle

a small, rounded process

Tuberosity

an elevated projection with a roughened surface

Openings and Spaces

• canal/meatus

• fissure

• notch

• foramen (foramina)

• sinus

Canal/Meatus

a passageway (or canal) through a bone

Fissure

a narrow, slit-like opening

Notch

an indentation at the edge of a structure

Foramen

a round or oval opening through a bone

Sinus

an air-filled cavity within a bone