the appendicular skeleton salt lake city community college human anatomy laboratory
TRANSCRIPT
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The Appendicular SkeletonSalt Lake City Community CollegeHuman Anatomy Laboratory
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THE SKELETAL SYSTEMThe Appendicular Skeleton
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 = leg Thigh Leg Foot
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Pectoral Girdle(Shoulder Girdle)
Clavicle – anterior: collar bone Scapula – posterior: shoulder blade
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Scapula
Glenoid cavity articulates with the humerus
Acromium articulates with clavicle
Coracoid process projects anteriorly
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Upper extremity
Arm or Brachium = upper arm Between shoulder
and elbow (humerus) Forearm or
Antebrachium Radius & ulna
Hand includes: Wrist (carpus) Palm (metacarpus) Fingers (phalanges)
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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
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Right humerus, anterior view
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Right forearm bones, anterior view
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Hip bone (os coxae): 3 separate bones in childhood which fuse
Ilium
Ischium
Pubis
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Lower limb
Thigh: femur
Leg (lower leg)TibiaFibula
Foot
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Right femur, anterior view
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Right lower leg, anterior view
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Right foot, superior (dorsal) view and inferior (plantar) view