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| Movement of the hand toward the radial (thumb) side Ratio of the arc length the end of a radial line travels through to the length of the radial line when the radial line rotates about one end; arc length divided by radius; 1 rad equals approximately 57.3 degrees Emission and diffusion of rays of heat A sharp, shooting pain that tends to remain within a specific dermatome An atom undergoing disintegration, emitting electromagnetic radiation The long bone that lies on the lateral side of the forearm; its distal end is larger than its proximal end The distance from an axis of rotation to where the mass of an object would have to be concentrated to create the same moment of inertia of the entire object about that axis; measured in units of length or expressed as meters in SI; a scalar quantity A division of a forked structure The series of bones formed by the metatarsal and phalanges Condition in which cold exposure causes vasospasm of digital arteriesA reaction to cold consisting of bouts of pallor and cyanosis, causing exaggerated vasomotor responses An external contact force resulting from one object touching another The natural sequential pattern of pronation and supination during the stance phase of running; measured for research and clinical purposes in the frontal plane as the angle between the shoe and the lower leg Linear motion that occurs when an object maintains its orientation during a movement so t hat all points on the object move the same distance, in the same direction, in the same time, in straight lines, also referred to as rectilinear motion One of the four quadriceps muscle of the anterior thigh; the only one that crosses the hip as well as the knee joint Pain at a site other than the actual location of trauma. Referred pain tends to be projected outward from the torso and distally along the extremities A reflex arc prohibiting the contraction of a specific muscle or muscle group Repair, regrowth, or restoration of a part such as tissue Orientation of a line relative to another line or lane that may not be fixed; expressed in degrees or radians The ratio between the amount of water vapor in the air and the actual amount of water the air could potentially hold based on the current temperature The rebuilding of tissue, or the healing of microdamage caused by an imposed stress; the healing of the tissue leads to hypertrophy, or strengthening, of the tissue That which remains; often used to describe a permanent condition resulting from injury or disease (e.g., a limp or a paralysis) Producing a vibrating sound or percussion Act of removal by absorption Change in location of a point expressed as the length and direction of the vector from the starting position to the ending position The vector sum of two or more forces; the force that results from the vector addition of two or more forces A Ligamentous tissue serving as a restraining band to hold other tissues in place A general term used to describe a disorder of the eye’s retina Movement of the scapular vertebral borders toward the spinal column Tilting or turning backward of a part A virus that enters a host cell and changes its RNA to a proviral DNA replicaThe generic name for the family of retroviridae, viruses that contain RNA and may be associated with certain types of cancer Restoration of blood circulation to an injured area A disorder of the liver, pancreas, heart, kidney, and lymph nodes; often seen in children under the age of 15 years associated with acute viral infection and use of aspirin An acute, sometimes fatal disease marked by the destruction of skeletal muscle Rest, ice, compression, and elevation The branch of mechanics concerned with the effects of forces on objects that are assumed to be perfectly rigid A pathological loss of a joint’s motion or a soft tissue’s elasticity A salt-based solution administered intravenously as a replacement for lost electrolytes Common name given to many superficial fungal infections of the skin Ribonucleic acid See angular inertia Turning around an axis in an angular motion Agents that redden the skin by increasing local circulation through dilation of blood vessels |
| Radial deviation Radian Radiation Radicular pain Radionuclide Radius Radius of gyration Ramus Ray Raynaud’s phenomenon Reaction force Rearfoot motion Rectilinear translation Rectus femoris Referred pain Reflex inhibition Regeneration Relative angular position Relative humidity Remodeling Residual Resonant Resorption Resultant displacement Resultant force Retinaculum Retinaopathy Retraction (scapular) Retroversion Retrovirus Revascularize Reye’s syndrome Rhabdomyolysis RICE Rigid-body mechanics Rigidity Ringer’s lactate Ringworm (tinea) RNA Rotary inertia Rotation Rubefacients |