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Scapula

Also called shoulder blade

Triangular shaped bone located on the posterolateral aspect of the thorax

Lateral surface has the glenoid fossa that articulates with the head of the humerus at the glenohumeral joint

Posterior surface divided by spine of scapula

• Supraspinatus fossa- small

• Infraspinatus fossa- large

Scapula parts

Inferior angle

Spine

Medial border

Lateral border

Vertebral column

Extends from cranuim to the appex of the coccyx

Protects the spinal cord and nerves

Supports weight of the body above the pelvis

Provides a partially rigid and flexible axis for the body and a pivot point for the head

Plays a key role in posture and movement

Vertebral Column Cont.

33 vertebrae located in 5 regions

Cervical-7

Thoracid-12

Lumbar-5

Sacral-5

Coccygeal-4

Muscles

Trapezius

Infraspinatus

Teres major

Latissimus dorsi