Category: A

A hemodynamic monitoring system consisting of a catheter in an artery connected to pressure tubing, a transducer, and an electronic monitor. It is used to measure systemic blood pressure and to provide ease of access for the drawing of blood (e.g., in intensive care, when regular monitoring of blood gases is necessary).  

An imaginary line that extends from the ala of the nose to the tragus of the ear. The line is an estimated point of entry for intraoral dental radiographs of the maxilla and is also used in denture prosthodontics.  

Arbitrary lines delineating abdominal regions.  

The highest and the lowest frequencies of sound that can be detected by the human ear. The lower limit is approx. 8 to 16 Hz and the upper limit is approx. 12 to 20,000 Hz.  

The amount of carbohydrate that can be absorbed or ingested without causing glycosuria.  

In radiology, the range of images within the diagnostic range of quality (i.e., density, contrast, detail).  

The portion of the tubule between the bend in Henle’s loop and the distal convoluted tubule.  

The lenticulocaudate portion that lies between the lenticular and caudate nuclei.  

The ascending portion of the pulse wave.  

Light with rays parallel to each other and to the optic axis.