11/2/2010
1
Osteology of the Upper
Limb ‐1‐
Lab Session 3
Lab Session 3
Dr. Hayder Jalil Al‐Assam
MBChB (Iraq), Mres Anatomy (UK)
: dr_hayder_anatomy@yahoo.com
Human skeleton
1‐ Axial Skeleton (
green
)
A‐ Skull
B‐ Vertebral column
C‐ Thoracic cage
2‐ Appendicular Skeleton (
purple
)
A‐ Pectoral girdle & upper limb
B‐ Pelvic girdle & lower limb
Upper limb bones
•
Pectoral girdle (
clavicle
&
Scapula
)
•
Arm ‐
Humerus
•
Forearm ‐
Radius
&
Ulna
•
Wrist –
carpal bones
(8 bones)
•
Hand –
metacarpal & phalanges
clavicle
•
Called Collar bone
•
Medial 2/3 = convex
•
Lateral 1/3 = concave
•
Coronoid tubercle is important landmark
located used to identify right & left sides. It is
located on posterior inferior aspect.
•
Only bony attachment of upper limb with the
axial skeleton.
Clavicle – muscle & Ligament
attachments
Scapula
•
Triangular flat bone
•
1 notch (supra‐scapular notch)
•
1 spine (spine of the scapula)
•
1 cavity (glenoid cavity – for the humerus)
•
2 processes (coracoid process & acromion)
•
3 borders (superior, lateral and medial)
•
3 angles (superior, lateral and inferior)
•
3 fossae (sub‐scapularis, infra‐spinous and supra‐spinous)
11/2/2010
2
Scapula – Muscle & Ligament
attachments
Humerus
•
Typical Long bone
•
Anatomical & Surgical necks
•
Medial and lateral epicondyles
•
Deltoid tubercle
•
Deltoid tubercle
•
Medial condyle = Trochlea
•
Lateral condyle = Capitulum
•
Spiral groove or radial groove
•
Anterior lower coronoid fossa
•
Posterior lower olcranon fossa
Humerus – Muscle & ligament
attachments
The End
The End