BONE MARKINGS Bone Projections Process raised area Olecranon

BONE MARKINGS

Bone Projections § Process: raised area § Olecranon process (ulna) § Coronoid process (ulna) § Styloid process (radius)

Bone Projections § Tuberosity: large rounded or roughened projection § Deltoid tuberosity (humerus) § Radial tuberosity (radius) § Tibial tuberosity (tibia)

Bone Projections § Crest: Narrow ridge of bone § Anterior crest of tibia

Bone Projections § Trochanter: very large, blunt projection § Greater and lesser trochanter of the femur

Bone Projections § Line § A long, thin projection, often with a rough surface § Ex: temporal line on parietal bone

Bone Projections § Tubercle: Small rounded projection § Greater and lesser tubercle of the humerus

Bone Projections § Epicondyle § Bump near a condyle – “bump on a bump” § For muscle attachment § Ex: distal end of femur

Bone Projections § Spine § Raised higher than a crest § A sharp, pointed, slender projection § Attaches connective tissues § Ex: Spinous process of vertebrae

Joint Projections § Head: bony expansion on a narrow neck § § § Humerus Ulna Radius Femur fibula

Joint Projections § Facet § A smooth, flat surface. § Ex: surface of vertebrae

Joint Projections § Condyle: Rounded articular projection § Medial and lateral condyles (femur and tibia)

Joint Projections § Ramus § Curved portion of a bone § Ex: mandible

Depressions/Cavities § Meatus § A tube-like opening or channel extending within a bone § Ex: external acoustic meatus

Depressions/Cavities § Sinus § Cavity within a bone § Ex: Maxillary sinuses

Depressions/Cavities § Fossa § A shallow depression § Ex: mandibular fossa, supraspinous fossa on scapula

Depressions/Cavities § Groove § A narrow, elongated depression § Ex: grooves on mandible

Depressions/Cavities § Fissure § Long, crack-like hole for blood vessels and nerves § Ex: superior orbital fissure

Depressions/Cavities § Foramen § Round hole through which blood vessels, nerves, or ligaments pass § Ex: Foramen magnum

Glenoid § Shallow, articular surface § Ex: Glenoid cavity of scapula

Trochlea § Trochlea: structure resembling or acting like a pulley § Trochlea (humerus) § Trochlear Notch (ulna)

Quiz Monday § Humerus § Head § Greater tubercle § Lesser tubercle § Deltoid tuberosity § Capitulum § Trochlea § Ulna § Trochlear Notch § Olecranon Process § Coronoid Process § Radius § Radial Tuberosity § Styloid Process § Femur § Head § Neck § Greater Trochanter § Lesser Trochanter § Lateral Condyle § Tibia § Lateral Condyle § Medial Condyle § Tibial Tuberosity § Anterior Crest § Intercondylar Eminence § Medial Malleolus § Fibula § Lateral Malleolus