Download THE APPENDICULAR SKELETON

The Appendicular Skeleton
Salt Lake City Community College
Human Anatomy Laboratory
THE SKELETAL SYSTEM
The Appendicular Skeleton
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2 pairs of limbs and 2 girdles
Pectoral (shoulder) girdle attaches upper limbs
Pelvic (hip) girdle secures lower limbs
3-Segmented limbs
 Upper = arm
 Arm
 Forearm
 Hand
 Lower =
 Thigh
 Leg
 Foot
leg
Pectoral
Girdle
(Shoulder Girdle)
Clavicle – anterior: collar bone
 Scapula – posterior: shoulder blade

Scapula
Glenoid cavity
articulates with
the humerus
 Acromium
articulates with
clavicle
 Coracoid
process projects
anteriorly

Upper extremity

Arm or Brachium =
upper arm

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Forearm or
Antebrachium

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Between shoulder
and elbow (humerus)
Radius & ulna
Hand includes:

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Wrist (carpus)
Palm (metacarpus)
Fingers (phalanges)
Arm

Humerus is the only
bone
 Head of humerus fits
into glenoid cavity of
scapula
 Distal & medially,
trochlea articulates
with the ulna
 Distal & laterally
capitulum articulates
with the radius
 Medial & lateral
epicondyles
Right
humerus,
anterior view
Right forearm bones,
anterior view
Hip bone (os coxae): 3 separate
bones in childhood which fuse

Ilium

Ischium

Pubis
Lower limb

Thigh: femur

Leg (lower
leg)
 Tibia
 Fibula

Foot
Right femur,
anterior view
Right lower leg,
anterior view
Right foot, superior (dorsal) view and inferior (plantar) view