Term
- pectoral girdle
- pelvic girdle
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Definition
attaches the upper limbs to the trunk attaches the lower limbs to the trunk
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consists of the clavicle and the scapula clavicle extends horizontally across the superior thorax scapula lies on the dorsal (back) surface of the rib cage between ribs 2 - 7
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comprised of 30 bones per limb grouped into bones of the arm, forearm, and hand
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region between shoulder and elbow humerus - only bone in the arm; longest and strongest of upper limb articulates with the scapula at the shoulder and the radius and ulna at the elbow
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formed from the radius (articulates with wrist joint for movement) and ulna (forms elbow joint with humerus) radius and ulna articulate with each other and there is the interosseous membrane between them in anatomical position, the radius is lateral and the ulna is medial
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carpus (wrist) - 8 bones - Sally Left The Party To Take Carmen Home metacarpal (palm) - 5 with 3 phalanges each except for thumb (or pollex) phalanges (fingers) - 3 parts are proximal, middle and distal
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attaches lower limbs to spine lower limbs have less movement but more stability than the upper limbs consists of coxal bones (hip), sacrum and coccyx
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ilium - large, flaring bone at top ischium - bottom-most bone pubis - above the ischium
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| Differences between male and female pelvis |
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Definition
female's is wider, lighter, shallower, more movable (adapted for childbearing) male's is narrower, longer, deeper, less movable
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carries the entire weight of the erect body bones are thicker and stronger than upper limb divided into 3 segments: thigh, leg, foot
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region between knee and ankle composed of 2 bones: tibia and fibula tibia - more massive bone; receives weight from femur fibula - stick-like bone interoosseous membrane connects the two
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composed of tarsus, metatarsus, phalanges supports body weight acts as lever to induce walking segmentation allows for adaptation to uneven ground
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Term
- Tarsus
- Metatarsus
- Phalanges
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Definition
contains 7 bones called tarsals contains 5 bones called metatarsals (big toe or hallux is # 1) contains 14 phalanges (big toe has only 2 phalanges compared to the rest that have 3 each) - proximal, middle and distal
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| Disorders of the Appendicular Skeleton |
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Definition
Bone fractures Hip dyplasia (head of the femur slips out of place) Clubfoot (soles of the feet turn inward)
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