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Ultrasound is defined by the American National Standards Institute as "sound at frequencies greater than 20 kHz". In air at atmospheric pressure, ultrasonic waves have wavelengths of 1.9 cm or less. Ultrasound can be generated at very high frequencies; ultrasound is used for sonochemistry at frequencies up to multiple hundreds of kilohertz.
Radial side of the proximal phalanx of the index finger: 2 Radial side of the middle phalanx of the index finger: 3 Tip of the index finger: 4 Tip of the middle finger: 5 Tip of the ring finger: 6 Tip of the little finger: 7 Distal interphalangeal joint crease of the little finger: 8 Proximal interphalangeal joint crease of the little finger: 9
The medial border (ulnar side) of the snuffbox is the tendon of the extensor pollicis longus; The lateral border (radial side) is a pair of parallel and intimate tendons, of the extensor pollicis brevis and the abductor pollicis longus. [2] (Accordingly, the anatomical snuffbox is most visible, having a more pronounced concavity, during thumb ...
It is situated between the hand and forearm on the thumb side of the wrist (also called the lateral or radial side). It forms the radial border of the carpal tunnel. The scaphoid bone is the largest bone of the proximal row of wrist bones, its long axis being from above downward, lateralward, and forward.
Anterior interosseous syndrome is a medical condition in which damage to the anterior interosseous nerve (AIN), a distal motor and sensory branch of the median nerve, classically with severe weakness of the pincer movement of the thumb and index finger, and can cause transient pain in the wrist (the terminal, sensory branch of the AIN innervates the bones of the carpal tunnel).
The radial collateral ligament of the thumb extends from the first metacarpal head to the proximal phalanx of the thumb. It is located on the radial side of the joint and is weaker than the ulnar collateral ligament of the thumb. [1]
The left hand itching spiritual meaning may differ across varying cultures, religions and traditions. Keep reading to unveil the curtain behind an itchy left palm, and what it may symbolize in ...
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.