Bone Markings Flashcards
Fossa
Hollow or depression
Sinus
A cavity or sponge like space in bone
Foramen
Hole
Meatus
Tube shaped opening
Condyle
A rounded knuckle like projection
Head
A rounded projection beyond a narrow neck like portion
Trochanter
Large projection found only in the femur
Crest
A ridge
Spine
Sharp projection
Tubercle
Small rounded projection
Tuberosity
Large rounded projection
Name all 11
Fossa meatus foramen Sinus head trochanter condyle tubercle tuberosity spine crest
Frontal Sinus
Located on either side of the midline and above eye orbits (2)
Ethmoid
3(18) found in either side of the midline and on top of the nasal cavity between sphenoid and frontal
Sphenoid
2 either side of the midline between the eyes and as deep as you last teeth posterior in nasal cavity
Maxillary
In cheeks directly below each orbit
Sinus tissue info
Sinuses are lined with mucous membranes that produce mucus
Tripping air and filters air by trapping foreign substances inflammation of membranes block drainage building up pressure
Sinus function
Resonates sound
Makes bones lighter
What bones are single
Vomer frontal occipital sphenoid ethmoid mandible