The Appendicular Skeleton 126 bones of the limbs
The Appendicular Skeleton: 126 bones of the limbs (appendages) 2 parts: • Shoulder girdle • Pelvic girdle
Postcranial Skeleton: Appendicular Skeleton Upper limbs: Shoulder girdle, long bones, hand bones Lower limbs: Pelvic girdle, long bones, patella, foot bones
Upper Limb
Appendicular Skeleton The Upper Limb Clavicle Shoulder girdle Composed of 2 bones: clavicle & scapula Clavicle Scapula- Features: spine, glenoid cavity, acromion, coracoid process, Scapula
The Shoulder Girdle
The Shoulder Girdle: Clavicle
The Shoulder Girdle: Scapula
Appendicular Skeleton The Upper Limb Long bones Humerus- Features: head, trochlea, olecranon fossa Radius- Features: head, styloid process, ulnar notch Ulna- Features: head, olecranon process, styloid process, radial notch
Humerus
The Shoulder Girdle: Humerus
The Shoulder Girdle: Humerus
Radius and Ulna
Radius
Bones of the Hand 27 Bones in each hand 5 4 5 5 8
SLTPTTCH
S caphoid L unate T riquetrum P isiform T rapezium T rapezoid C apitate Hamate
Lower Limb
THE PELVIC GIRDLE
THE PELVIC GIRDLE • Made up of 3 Adult Bones: • Left and right innominate • also known as os coxae • Sacrum
INNOMINATE • Latin for “no name” bone • Paired bones
INNOMINATE • Meet at joints: • Pubic symphysis – where the two innominate come together anteriorly • Sacroiliac joints – where each innominate comes together with the sacrum
INNOMINATE • Made up of three different bones in childhood: • Ischium • Ilium • Pubis
INOMINATE FEATURES
INOMINATE FEATURES ILIUM Acetabulum Greater Sciatic Notch PUBIS ISCHIUM Obturator foramen Pubic symphysis
Femur
Femur
Femur
Femur
Patella Apex Anterior Posterior
Tibia and Fibula
Tibia
Fibula Proximal Distal D
The Lower Limb Foot Bones Tarsals (7) – ankle bones Talus Calcaneous Tarsals Metatarsals Phalanges Navicular Cuboid Cuneiforms (3) Metatarsals (5) – bones of foot Phalanges (14 = 3 for each toe, 2 for big toe) – toe bones
Bones of the Foot
Bones of the Foot
- Slides: 37