, THE SKELETAL SYSTEM
The Appendicular Skeleton
n 2 pairs of limbs and 2 girdles
n Pectoral (shoulder) girdle attaches upper limbs
n Pelvic (hip) girdle secures lower limbs
n 3-Segmented limbs
¨ Upper = arm
n Arm
n Forearm
n Hand
¨ Lower = leg
n Thigh
n Leg
n Foot
,Pectoral
Girdle
(Shoulder Girdle)
n Clavicle – anterior: collar bone
¨ Sternal end attaches to the manubrium
medially
¨ Acromial end articulates with the scapula
laterally
n Scapula – posterior: shoulder blade
, Scapulae: triangular, paired, but don’t
connect in back (adds thoracic flexibility)
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