Upper Limb Anatomy Summary Notes for Dentistry (Year 1)
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Course
Anatomy (4NNYBD01)
Institution
Kings College London (KCL)
Concise and easy to access notes on the upper limb anatomy for first year dental students.
Covers the bones, musculature, blood supply and nerve supply of the upper limbs.
Humerus
• Long bone in arm
• Extends from shoulder to elbow
• Articulations:
o Proximally with glenoid
fossa of scapula
o Distally (at elbow joint)
with head of radius &
trochlear notch of ulna
Interosseous Membrane
• Fibrous tissue
• Joints radius & ulna, actively
transferring force between
them
Elbow Joint
• Synovial Joint: freely moveable joint with ends of bone
covered by hyaline cartilage and a fluid-filled joint cavity
contained with a fibrous capsule
• Articulating surfaces:
o Humero-radial
o Humero-ulnar – hinge for flexion & extension
o Proximal radio-ulnar – rotation for pronation &
supination
Ulna Radius
• Long bone in forearm • Long bone in forearm
• Lies medially & parallel to • Lies laterally and parallel to ulna
radius • Pivots around ulna to produce movement at proximal /
• Stabilising bone, pivoting distal radio-ulnar joints
with radius to produce • Articulations:
movement o Elbow joint – head of radius + capitulum of humerus
• Articulations: o Proximal radio-ulnar joint – head of radius + radial
o Proximally with notch of ulna
humerus at elbow joint o Distal radio-ulnar joint – ulnar notch + head of ulna
o Distally with radius o Wrist joint – distal end of radius + carpal bones
(distal radio-ulnar joint)
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