Arterial blood
Encyclopedia
Arterial blood is the oxygenated blood in the circulatory system
found in the lungs, the left chambers of the heart, and in the arteries. It is bright red in color, while venous blood is dark red in color (but looks purple through the opaque skin). It is the contralateral term to venous blood
.
Framed in the cardiac cycle
, often historically accredited to the Wiggers diagram
, arterial blood has just passed through the lungs and is ready to boost oxygen
to sustain the peripheral organs. The essential difference between venous and arterial blood is the curve of the oxygen saturation of hemoglobin
. The difference in the oxygen content of the blood between the arterial blood and the venous blood is known as the arteriovenous oxygen difference
.
Circulatory system
The circulatory system is an organ system that passes nutrients , gases, hormones, blood cells, etc...
found in the lungs, the left chambers of the heart, and in the arteries. It is bright red in color, while venous blood is dark red in color (but looks purple through the opaque skin). It is the contralateral term to venous blood
Venous blood
Venous blood is deoxygenated blood in the circulatory system. It runs in the systemic veins from the organs to the heart. Deoxygenated blood is then pumped by the heart to lungs via the pulmonary arteries, one of the few arteries in the body that carries deoxygenated blood .Venous blood is...
.
Framed in the cardiac cycle
Cardiac cycle
The cardiac cycle is a term referring to all or any of the events related to the flow or blood pressure that occurs from the beginning of one heartbeat to the beginning of the next. The frequency of the cardiac cycle is described by the heart rate. Each beat of the heart involves five major stages...
, often historically accredited to the Wiggers diagram
Wiggers diagram
A Wiggers diagram is a standard diagram used in cardiac physiology.The X axis is used to plot time, while the Y axis contains all of the following on a single grid:* Blood pressure** Aortic pressure** Ventricular pressure** Atrial pressure...
, arterial blood has just passed through the lungs and is ready to boost oxygen
Oxygen
Oxygen is the element with atomic number 8 and represented by the symbol O. Its name derives from the Greek roots ὀξύς and -γενής , because at the time of naming, it was mistakenly thought that all acids required oxygen in their composition...
to sustain the peripheral organs. The essential difference between venous and arterial blood is the curve of the oxygen saturation of hemoglobin
Hemoglobin
Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates, with the exception of the fish family Channichthyidae, as well as the tissues of some invertebrates...
. The difference in the oxygen content of the blood between the arterial blood and the venous blood is known as the arteriovenous oxygen difference
Arteriovenous oxygen difference
The arteriovenous oxygen difference, or a-vO2 diff, is the difference in the oxygen content of the blood between the arterial blood and the venous blood. It is an indication of how much oxygen is removed from the blood in capillaries as the blood circulates in the body...
.