Category: A

An abnormal, soft sound heard on auscultation that may be due to stenosis or regurgitation. It is a sign of aortic valvular disease.  

A whizzing systolic sound heard over an aneurysm.  

Spontaneous, involuntary movement independent of external stimulation.  

Synchronous correlation of two or more muscles or muscle groups that, although not essential for the performance of some function, normally accompany it, as the swinging of arms in normal walking. Associated movements are characteristically lost in cerebellar disease.  

The change in the joint position between long bones. Flexion, extension, abduction, and adduction are examples of angular movement.  

Movement caused by the patient’s own intention.  

Associated movement in synovial and secondary cartilaginous joints that accompanies active voluntary range of motion and is necessary for full painless joint range of motion and function. These relatively small rolling and gliding movements, also called accessory movements or joint play, cannot be isolated voluntarily.  

A type of mechanical ventilation with a minimum frequency of respirations determined by ventilator settings. It also permits the patient to initiate ventilation.  

Excessive tooth movement within the bony socket due to degenerative changes in the supporting alveolar bone and periodontal ligament as a result of poor oral hygiene, hormone balance changes, or trauma.  

Impaction of a gallstone in the infundibulum of the gallbladder or the cystic duct resulting in obstruction of the common hepatic duct, occasionally associated with fistula formation. The syndrome is a rare but surgically important cause of jaundice.