Examlex
Which of the following denotes the divisions of the geologic time scale in correct order of decreasing lengths of time beginning with the longest time interval and ending with the shortest?
Diastolic Pressure
The lower reading in blood pressure measurements; it reflects the pressure in the arteries when the heart rests between beats.
Venous Return
The flow of deoxygenated blood back to the heart via the veins, crucial for maintaining blood circulation throughout the body.
Respiratory Movements
The actions of the respiratory system involved in the inhalation and exhalation of air, facilitating gas exchange between the atmosphere and the body's cells.
Valves
Structures that exist within various types of vessels, including veins and the heart, which maintain the direction of blood flow by opening and closing depending on the pressure gradient.
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