Appendicular Skeletal System

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Appendicular Skeletal System

description

Appendicular Skeletal System. Appendicular Skeletal System. Composed of 126 bones The appendicular skeleton is divided into six major regions: 1) Pectoral Girdles (4 bones) - Left and right Clavicle (2) and Scapula (2). - PowerPoint PPT Presentation

Transcript of Appendicular Skeletal System

Page 1: Appendicular  Skeletal System

Appendicular Skeletal System

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Appendicular Skeletal System• Composed of 126 bones• The appendicular skeleton is divided into six major regions:• 1) Pectoral Girdles (4 bones) - Left and right Clavicle (2) and Scapula

(2).• 2) Arm and Forearm (6 bones) - Left and right Humerus (2) (Arm),

Ulna (2) and Radius (2) (Fore Arm).• 3) Hands (58 bones) - Left and right Carpal (16) (wrist), Metacarpal

(10), Proximal phalanges (10), Middle phalanges (8), distal phalanges (10), and sesamoid (4).

• 4) Pelvis (2 bones) - Left and right ilium (2).• 5) Thigh and leg (8 bones) - Femur (2) (thigh), Tibia (2), and Fibia (2)

(leg).• 6) Feet (48) - Tarsals (14) (ankle), Metatarsals (10), Proximal

phalanges (10), middle phalanges (8), distal phalanges (10), and sesamoid (4).

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Review Terms• Process:• A prominent projection on a bone• Fossa: • A relatively deep pit or depression• Border:• An outline of a bone• Notch: • A groove/concaved curvature• Angle: • Convex curvature• Tubercle: • a small knoblike process• Condyle: • a rounded process that usually articulates with another bone• Epicondyle:• a projection situated above a condyle

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ScapulaSuperior angle

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Scapula

Superior border

Superior angle

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Scapula

Coracoid processSuperior border

Superior angle

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Scapula

Coracoid processSuperior border

Superior angleScapular notch

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Scapula

Acromion process Coracoid processSuperior border

Superior angleScapular notch

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Scapula

Acromion process Coracoid process

Subscapularfossa

Superior border

Superior angleScapular notch

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Scapula

Acromion process Coracoid process

Subscapularfossa

Lateralborder

Superior border

Superior angleScapular notch

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Scapula

Acromion process Coracoid process

Subscapularfossa

Lateralborder

Superior border

Inferiorangle

Superior angleScapular notch

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Scapula

Acromion process Coracoid process

Subscapularfossa

Medialborder

Lateralborder

Superior border

Inferiorangle

Superior angleScapular notch

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Scapula

Acromion process Coracoid process

Subscapularfossa

Medialborder

Lateralborder

Superior border

Inferiorangle

Superior angle

Supraspinous fossa

Scapular notch

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Scapula

Acromion process

Acromioclavicular joint

Coracoid process

Subscapularfossa

Medialborder

Lateralborder

Superior border

Inferiorangle

Superior angle

Supraspinous fossa

Scapular notch

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Scapula

Acromion process

Acromioclavicular joint

Coracoid process

Subscapularfossa

Medialborder

Lateralborder

Superior border

Inferiorangle

Superior angle

Spine

Supraspinous fossa

Scapular notch

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Scapula

Acromion process

Acromioclavicular joint

Coracoid process

Subscapularfossa

Medialborder

Lateralborder

Superior border

Inferiorangle

Superior angle

Infraspinousfossa

Spine

Supraspinous fossa

Scapular notch

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Scapula

Acromion process

Acromioclavicular joint

Coracoid process

Subscapularfossa

Medialborder

Lateralborder

Superior border

Inferiorangle

Superior angle

Infraspinousfossa

Spine

Supraspinous fossa

Scapular notch

Glenoidfossa

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Posterior view Anterior view

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Posterior view Anterior view

Headof humerus

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Posterior view Anterior view

Headof humerus

Greater tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Lesser tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Shaftof thehumerus

Lesser tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Shaftof thehumerus

Coronoid fossa

Lesser tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Shaftof thehumerus

Olecranonfossa

Coronoid fossa

Lesser tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Shaftof thehumerus

Lateral epicondyle Lateral epicondyle

Olecranonfossa

Coronoid fossa

Lesser tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Shaftof thehumerus

Lateral epicondyle

Medialepicondyle Lateral epicondyle

Olecranonfossa

Coronoid fossa

Lesser tubercle

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Posterior view Anterior view

Headof humerus

Greater tubercle

Intertubercular groove

Shaftof thehumerus

Lateral epicondyle

Medialepicondyle Lateral epicondyle

Trochlea Capitulum

Olecranonfossa

Coronoid fossa

Lesser tubercle

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Shaft of ulnaShaft of radius

Short

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Scaphoid

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ScaphoidLunate

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ScaphoidLunateTriquetrum

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ScaphoidLunateTriquetrum

Pisiform

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ScaphoidLunateTriquetrum

PisiformTrapezium

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ScaphoidLunateTriquetrum

PisiformTrapezium

Trapezoid

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ScaphoidLunateTriquetrum

PisiformTrapezium

TrapezoidCapitate

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ScaphoidLunateTriquetrum

PisiformTrapezium

TrapezoidCapitate

Hamate

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I

II IIIIV

V

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Head of metacarpal

Shaft of metacarpal

Base of metacarpal

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Distal phalanx

Middle phalanx

Proximal phalanx

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Head of phalanxShaft of phalanxBase of phalanx

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Base of the metacarpalShaft of the metacarpalHead of the metacarpal

PhalangesProximal phalanx

Middle phalanx

Distal phalanx

Base of the phalanxShaft of the phalanxHead of the phalanx

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• S-silly-Scaphoid• L-Lovers-Lunate• T-Try-Triquetrum• P-Positions-Pisiform• T-That -Trapezium• T-They-Trapezoid• C-can’t-Capitate• H-handle-Hamate

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