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Bone Surface Features
(Fissures, Foramen, Fossa, etc.)
15
Anatomy
Undergraduate 1
10/19/2008

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Term
FISSURE
Definition
NARROW SLIT between adjacent parts of bones through which BLOOD VESSELS PASS. Ex) Superior orbital fissure of the sphenoid bone
Term
FORAMEN
Definition
A HOLE/OPENING through which blood vessels, nerves, or ligaments pass. Ex) Foramen Magnum
Term
FOSSA
Definition
SHALLOW DEPRESSION Ex) Coronoid fossa of the humerus
Term
GROOVE/SULCUS
Definition
GROOVE along bone surface that accommodates a blood vessel, nerve or tendon. Ex) Intertubercular sulcus of the humerus
Term
MEATUS
Definition
Tubelike opening; TUNNEL/ PASSAGEWAY Ex) External auditory meatus of the temporal bone.
Term
CONDYLE
Definition
Large, round, protuberance at the end of a bone. Ex) Later condyle of the femur.
Term
FACET
Definition
Smooth, FLAT, articular surface Ex) Superior articular facet of a vertebra.
Term
HEAD
Definition
Rounded, articular, projection SUPPORTED ON THE NECK of a bone.
Term
CREST
Definition
Prominent RIDGE or elongated projection. Ex) Iliac crest of the hip bone.
Term
EPICONDYLE
Definition
Projection above. Ex) Medial epicondyle of the femur.
Term
LINE
Definition
Long, narrow ridge or border (less prominent then a crest). Ex) Linea aspera of the femur.
Term
SPINOUS PROCESS
Definition
Sharp, slender projection. Ex) Spinous process of a vertebra
Term
TROCHANTER
Definition
Very large projection. Ex) Trochanter of the femur
Term
TUBERCLE
Definition
Small, rounded projection (tuber = knob). Ex) Greater tubercle of the humerus.
Term
TUBEROSITY
Definition
Large, rounded, usually ROUGHENED projection. Ex) Ischial tuberosity of the hip bone.
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