Upper limb Skeleton

(for 1st Year Medical Students 2013-2014)

1 .Clavicle, Scapula & Humerus

Presented By:

Dr. Khaled El Masry

Assistant Lecturer of Human Anatomy & Embryology,Mansoura Faculty of Medicine,

Mansoura University,Mansoura, Egypt.

2013

Objectives:

You will have to be able to answer 2 questions:

1. Identify Side of this Bone ??? (Rt. or Lt. )2. Identify General Features of each Bone ???

( Later, you will Know Particular Features of each Bone, Don’t worry……, Be Patient my friends…)

Upper limb Bones

Shoulder Girdle

Clavicle

Scapula

Humerus

RadiusUlna

Carpals

Metacarpals

Phalanges

Clavicle:

Rt. Clavicle

Deltoid tubercle

Medial End

Lateral End

Shaft

Medial 2/3

Lateral 1/3 Superior Surface

Anterior Surface

Posterior Surface

Inferior Surface

Groove for Subclavius Muscle

Impression for Costo-clavicular Ligament

Smooth and SubcutaneousSuperior Surface

Posterior Border

Inferior Surface

Conoid Tubercle

Trapezoid Ridge

Sternoclavicular Joint

Subclavius Muscle

Costoclavicular Ligament

Acromioclavicular Joint

Coraco-clacivular Ligament

Trapezoid PartConoid Part

Medial end of the clavicle

Sterno-clavicular joint

Shaft of the clavicle

Side Determination

Medial

Lateral

Inferior

Superior

Posterior

Anterior

Posterior

The Key for the Clavicle is:

The Medial Quadrangula

r End

Scapula:

Scapula

Costal surface Dorsal surface

Superior angle

Inferior angle

Lateral angleLateral angle

Superior borderSuperior border

Medial border

Lateral borderLateral border

Spine of the scapula

AcromionCoracoid process

2 Surfaces 3 Angles 3 Borders 3 Processes

Costal surface

Subscapular Fossa

Dorsal surface

Spine of the scapula

Infraspinous fo

ssa

Supraspinous fossa

Spino-glenoid notch

Superior angle

Inferior angle

Lateralangle

Head

Neck

Superior border

Med

ial b

ord

er

Latera b

orderl

Suprascapular notch

Root of the Coracoid process

Glenoid cavity

Inferior angle

Spine of the scapula

Root of the spine

Acromion

Upper surfaceof the spine

Lower surface

of the spine

Posterior borderof the spine

Lateral border

of the sp

ine

Acromion

Uppersurface

Lowersurface

Lateralborder

Medial border

Coracoid process

Upper surface

Lower surface

Medial border

Lateral border

Glenoidcavity

Lateral borderof the scapula

Coracoid process

Acromion

Glenoidcavity

Lateral borderof the scapula

Coracoid process

Acromion

Side Determination

Anterior View Posterior View

The Key for the Scapula is:

Glenoid Cavity &

Spine

Humerus:

Anterior View Posterior View

Upper End

Lower End

Shaft

Upper End of the Humerus:

Head

Head

Anterior View Posterior View

DirectedUpward

BackwardMedially

Anatomical Neck

Surgical Neck

Greater Trochanter Greater

Trochanter

UpperMiddleLower

ImpressionsLesser Trochanter

Inter-tubercularGroove

Shaft of the Humerus:

Greater Trochanter Lesser

Trochanter

Inter-tubercularGroove

DeltoidTuberosity

The Anterior Border

Spiral (Radial)Groove

LateralSupra-condylar ridge

The LateralBorder

The MedialBorder

The Anterior Border

The LateralBorder

The MedialBorder

The MedialBorder

Antero-LateralSurface

Antero-MedialSurface

PosteriorSurface

Lower End of the Humerus:

Captitulum Trochlea

Medial Epicondyle

Lateral Epicondyle Lateral

Epicondyle

Trochlea

Rough impression Shallow

Groove

RadialFossaCoronoid

Fossa OlecranonFossa

Capitulum

Trochlea

Headof

Radius

Coronoid Notch

ofUlna

Olecranon Process of

Ulna

Radial FossaCoronoid

FossaOlecranon

Fossa

Head

SurgicalNeck

AnatomicalNeck

Shaft

Normal Humerus

Fracture Surgical Neck Humerus

Fracture Anatomical Neck Humerus

Side Determination

Superior

Inferior

Anterior

Medial

Medial

Posterior

The Key for the Humerus is:

Head &Lesser trochanter

Medial Epicondyle & Olecranon Fossa

Upward & Medial

Downward & Medial

Anterior

Posterior

Thank YouFirst Year Medical Student

لقد وقعنا في

الفخ !!!

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