Fluke-biomedical MPS450 User Manual download pdf (Page 124)

MPS450

Operators Manual

C-2

Table C-1. Glossary (cont.)

Term Definition

AV JUNCTION A junction consisting of the AV node and the bundle of His.

Conducts the electrical impulse sent from the

SA node from the

atria into the ventricles.

AV NODE Also called the atrioventricular node. Located in the right atrium near

the septum. Conducts the electrical impulse in the heart to the

bundle of His

, which passes it on to the left- and right-bundle

branches.

BAUD A unit of measurement that denotes the number of discrete signal

elements, such as bits, that can be transmitted per second. Bits-per-

second (bps) means the number of binary digits transmitted in one

second.

BLOOD PRESSURE The pressure of the blood within the arteries, primarily maintained by

contraction of the left

ventricle.

BPM Beats per minute. SEE pulse.

BUNDLE OF HIS A collection of nerves (about 1 cm in length) that lies just below the

node

in the heart. Part of the heart’s electrical conduction system.

With the AV node, forms the

AV junction. Below the bundle, the

nerves divide into left and right branches.

COMPUTATIONAL

CONSTANT

Pertaining to cardiac output. Sometimes called calibration coefficient.

CARDIAC Of, near, or pertaining to the heart.

CARDIOVASCULAR Of, pertaining to, or involving the heart and the blood vessels.

CAPILLARY One of the minute blood vessels that connect the arteries and veins.

GRAM A metric unit of mass and weight, equal to one-thousandth of a

kilogram, about 0.035 ounces.

HERTZ A unit of frequency equal to one cycle per second. Used to measure

electrical current and light, especially ultraviolet radiation (as in

fluorescent light).

IMPEDANCE A measure of the total opposition to current in a circuit.

INFRARED Of, pertaining to, or being electromagnetic radiation having

wavelengths greater than those of visible light and shorter than

those of microwaves.

JOULE A unit of energy, equal to the work done when a current of

one

ampere is passed through a resistance of one ohm for one

second.

KILOGRAM The fundamental unit of mass in the International System, about

2.2046 pounds.

LCD Liquid crystal display. A digital display consisting of a liquid crystal

material between sheets of glass that becomes readable in the

presence of an applied voltage.

METER The fundamental unit of length, equivalent to 39.37 inches, in the

metric system.

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