Human Anatomy

Human Anatomy

1. Pectoral girdle

   • Scapula
     • Glenoid fossa + head of humerus
       • Glenohumeral joint
         • Ball and socket type
       • Distal to head is the anatomical neck
         • Distal to this is projections; greater and lesser tubercles
           • Distal to these is the surgical neck
             • Lateral aspect at the distal end is the capitulum
               • Superior to this is radial fossa where the head of the radius articulates
                 • Medial to capitulum is the trochlea which articulates with the ulna
                   • Olecranon fossa and coronoid fossa are depressions for articulations
                     • Distal projections are the greater and lesser epicondyles, forearm muscles attach
       • The trochlea of the humerus articulates with the trochlea notch of the ulna and the capitulum articulates with the head of the radius
         • Elbow joint
           • Hinge type
         • Radius
           • Proximal end: head, neck is inferior to this
             • Below neck on medial aspect is radial tuberosity - roughened area for attachment of biceps brachii
               • Distal lateral side of bone - styloid process
         • Ulna
           • Proximal end - olecranon process
             • Anterior side of this is the trochlea notch
               • Distal to this is the coronoid process - a projection
               • Inferior to this is the radial notch
           • Distal end is head and styloid process
   • Clavicle
     • Medial end is sternal end and lateral end is acromial end
     • Acromion of scapula + acromial end of clavicle
       • Acromioclavicular joint
         • Plane type
     • Sternal end of clavicle + manubrium of sternum
       • Sternoclavicular joint
         • Saddle type

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