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Aug 122014

Abduction

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Abduction and adduction refer to motions that move a structure away from the centre of the body. Abduction refers to motion that pulls a structure away from the midline of the body, while adduction refers to motion toward the midline.

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Aug 122014

Acetabulum

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The curve-shaped cavity on the side of the hip bone into which the thigh bone fits.

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Aug 122014

Achilles tendon

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A tough sinew that attaches the calf muscle to the back of the heel bone.

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Aug 122014

Adduction

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Abduction and adduction refer to motions that move a structure away from the centre of the body. Adduction refers to motion toward the midline, while abduction refers to motion that pulls a structure away from the midline of the body.

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Aug 122014

Anterior cruciate ligament

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A ligament in the knee that crosses from the underside of the thigh bone (femur) to the top of the lower leg bone (tibia).

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Aug 122014

Ball-and-socket joint

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The area where the rounded end of one bone fits into a cavity in an adjoining bone. Ball-and-socket joints allow a wide range of movement, or flexion. For example, ball-and-socket joints of the shoulder and hip can rotate in a complete circle.

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Aug 122014

Bladder

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The body organ in which urine is stored, located in the pelvis behind the pubic bone.

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Aug 122014

Blood vessel

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The part of the circulatory system that transports blood throughout the body. There are three major types of blood vessels: the arteries, which carry blood away from the heart, the capillaries, which enable the exchange of water and chemicals between the blood and the tissues, and the veins, which carry blood from the capillaries back toward ...

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Aug 122014

Bowlegged

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A condition that produces an outward curve at or below the knee area. It is caused by a disorder that slows the growth of the inner portion of the growth plate that runs horizontally across the knee while the outer portion of the plate grows normally. Also known as valgus.

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Aug 122014

Bunion

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A localized painful swelling at the base of the big toe, often associated with bursitis or osteoarthritis.

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Aug 122014

Bursa

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A tiny fluid-filled sac that functions as a gliding surface to reduce friction between tissues of the body, found in synovial joints. Major busae are located beside tendons near the large joints, such as the shoulders, elbows, hips and knees.

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Aug 122014

Cartilage

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A tough, white elastic tissue that covers the contact points of the bones that make up joints in the body, providing a cushion between the contact points and allowing smooth and painless movement of the joint.

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Aug 122014

Coccyx

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The small tail-like bone at the very bottom of the spine. The coccyx is made up of 3 to 5 rudimentary vertebrae.

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Aug 122014

Connective tissue

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Tissue that serves as the framework of the body, surrounding, supporting and connecting organs, muscles, joints and other body parts.

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Aug 122014

Extension

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Movement of a joint in a direction that increases the angle between the two parts of the joint. The opposite of flexion, which decreases the angle. When a joint can move both forward and backward (e.g. neck), extension describes the backward (i.e. posterior) direction.

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Aug 122014

Femoral head

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The ball-shaped top of the femur (thigh bone) that fits into the hip socket, creating a ball-and-socket joint.

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Aug 122014

Femur

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The main bone in the thigh that extends from the hip to the knee. The femur is the strongest bone in the human body.

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Aug 122014

Fibula

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The narrower of the two bones in the leg below the knee.

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Aug 122014

Flexion

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Bending a joint, such as a hip or knee joint, in a motion that decreases the angle between the two parts. The opposite is extension, which increases the angle. For joints that move both forward and backward, flexion describes the forward (i.e. anterior) motion.

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