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Does a line have infinite length?
A line does have infinite length because it exists on an infinite plane. The only time it does not have infinite length is when it is a line segment.
If a length of time that is 0.000000001 second is called a what?
nanosecond.
It has no length width or thickness?
A point. (Also time, language, concepts, etc.)
How does the length of your shadow compare to your actual height?
It depends on the time of day, and, therefore, it depends on where the sun is in the sky.
Why do you multiply the length times the width to find the area?
Instead of counting out all of the square units and determining by having a real life situation and measuring a certain amount of length to measure each and every individual square, you multiply the length times the width to save hours of time.
What is atrial diastole?
Atrial refers to the top portion of the heart and diastole is when the heart is at rest. Atrial diastole would be when the top portion of the heart is not beating.
What is your heart doing when it is in systole?
Diastole is when a given chamber of the heart is relaxing. There is atrial diastole and ventricular diastole. Most of the time when talking about diastole we are referring to the ventricular because that is when we measure the diastolic (low) pressure in your systemic arteries, usually the brachial artery.
What is the period when the atria are depolarizing?
atrial diastole
When is atrial and ventricle at rest together?
At diastole the muscles of the atria and ventricles relax and blood flows into the heart. Therefore the atria and ventricles and at rest together during diastole.
Does the p wave in an ekg indicate atrial depolarization?
No it does not. Atrial repolarization is generally not visible on the telemetry strip because it happens at the same time as ventricular depolarization (QRS complex). The P wave represents atrial DEpolarization (and atrial systole). Atrial repolarization happens during atrial diastole (and ventricular systole).
How is pulse related to systole and diastole?
Systole is when a chamber of the heart (i.e. atrial vs. ventricular systole) is contracting. Diastole is when a chamber of the heart is relaxing. Without qualifying which chamber it is usually assumed to mean the left ventricle.Systole refers to when the heart is contracted and diastole refers to when the heart is relaxed.
What controls the heart rate at rest?
The third apsect of the cardiac cycle is the rest period, however it is not separate from the sytole and diastole. It is merely the time frame during a cycle when both the artia and ventricles are in disastole at the same time. It thus can be said that the period of rest overlaps atrial and ventricular diastole.
Is systolic pressure where the ventricls are relaxing?
Relaxation = Diastole Contraction of the atria=Atrial systole Contraction of the ventricles = Ventricular systole
Does the heart spend more time in systole or diastole of what benefit is this?
The heart spends more time in diastole.
What is a complete cycle of a heart contraction and relaxation called?
Cardiac cycle, which is made up of atrial and ventricular systole and diastole.
Why is the mean arterial pressure not calculated as systolic plus diastolic divided by 2?
This is because the lengths of systole and diastole are different. Usually in a resting individual having his or her blood pressure taken, the amount of time spent in diastole is longer than the amount of time spent in systole. The length of time the heart is in diastole is approximately twice as long as it is in systole. Systole only occurs when the heart is actively contracting, the rest of the time is diastole. So mean arterial pressure is usually closer to one's diastolic pressure than systolic. As one's heart-rate increases and the length of diastole shortens, the mean arterial pressure is much closer to just the average of systolic blood pressure and diastolic pressure.
What is the term that defines the relaxation phase of the heartbeat?
diastole
