CHP8 Skeletal; Lower Extremity Bones and Their Markings; Femur and below
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Femur | Thigh bone; largest, strongest bone of the body
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Head (re: femur) | Rounded upper end of the bone; fits into the acetabulum
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Neck (re: femur) | Constricted portion just below the head
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Greater trochanter (re: femur) | Protuberance located inferiorly and laterally to the head
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Lesser trochanter (re: femur) | Small protuberance located inferiorly and medially to the greater trochanter
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Intertrochanteric line (re: femur) | Line extending lengthwise along the concave posterior surface
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Linea aspera (re: femur) | Prominent ridge extending lengthwise along the concave posterior surface
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Supracondylar ridges (re: femur) | Two ridges formed by division of the linea aspera at its lower end; the medial supracondylar ridge extends inward to the inner condyle, the lateral ridge to the outer condyle
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Condyles (re: femur) | Large, rounded bulges at the distal end of teh femur; one medial and one lateral
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Epicondyles (re: femur) | Blunt projections from the sides of the condyles; one on the medial aspect and one on the lateral aspect
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Adductor tubercle (re: femur) | Small projection just above the medial condyle; marks the termination of the medial supracondylar ridge
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Trochlea (re: femur) | Smooth depression between the condyles on the anterior surface; articulates with the patella
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Intercondylar fossa (notch) (re: femur) | Deep depression between the condyles on the posterior surface; the cruciate ligaments, which help bind the femur to the tibia, lodge in this notch
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Patella | Kneecap; largest sesamoid bone of the body; embedded in the tendon of the quadriceps femoris muscle
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Tibia | Shin bone
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Condyles (re: tibia) | Bulging prominences at the proximal end of the tibia; upper surfaces concave for articulation with the femur
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Intercondylar eminence (re: tibia) | Upward projection on the articular surface between the condyles
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Crest (re: tibia) | Sharp ridge on the anterior surface
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Tibial tuberosity (re: tibia) | Projection in the midline on the anterior surface
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Medial malleolus (re: tibia) | Rounded downward projection at the distal end of the tibia; forms the prominence on the medial surface of the ankle
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Fibula | Long, slender bone of the lateral side of the lower part of the leg
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Lateral malleolus (re: fibula) | Rounded prominece at the distal end of the fibula; forms the prominence on the lateral surface of the ankle
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Tarsal Bones | Bones that form the heel and proximal or posterior half of the foot; include calcaneus, talus, navicular, cuboid, medial cuneiform (I), intermediate cuneiform (II), and lateral cuneiform (III)
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Calcaneus | Heel bone
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Talus | Uppermost of the tarsal bones; articulates with the tibia and fibula; boxed in the medial and lateral malleoli
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Arches of foot | Curves of the bones of the foot and ankle that, along with muscles and other soft tissue, properly support the mass of teh skeleton
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Longitudinal arches | Tarsal and metatarsal bones so arranged as to form an arch from the front to the back of the foot
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Medial arch of foot | Formed by the calcaneus, talus, navicular, cuneiforms, and three medial metatarsal bones
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Lateral arch of foot | Formed by the calcaneus, cuboid, and two metatarsal bones
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Transverse (or metatarsal) arch | Metatarsal and distal row of tarsal bones (cuneiforms and cuboid) articulated so as to form an arch across the foot; bones kept in two arched postitions by means of powerful ligaments in the sole of the foot and by muscles and tendons
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Metatarsal bones | Long bones of the feet; numbered (from medial side) I, II, III, IV, V
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Phalanges (of the feet) | Mini long bones of the toes; two in each great toe; three in the other toes; from metatarsal bone: proximal, middle (except first toe), distal; numbered (from medial side) I (except first toe), II, III, IV, V
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