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Rapid and dangerously uncoordinated ventricular contractions are called?
Rapid and dangerously uncoordinated ventricular contractions is called ventricular fibrillation, or v-fib. During v-fib, the ventricle is not pumping blood to the body, and thus v-fib is known as a lethal dysrhythmia.
The peak blood pressure measured during ventricular systole is called?
Systolic Pressure
What is the lowest pressure that remains in the arterial system during ventricular relaxation?
this is called the diastolic pressure meaning when the heart is in diastole. The diastolic number is the bottom number in common blood pressure. i.e. in a pressure 120/80 the lowest measured pressure is 80mmHg during ventricular relaxation
Does ventricular pressure increase the fastest during ventricular filling?
yes
The maximum pressure achieved during ventricular contraction is called what?
The maximum pressure achieved during ventricular contraction is called systolic blood pressure. It represents the force exerted by the blood against the walls of the arteries when the heart beats.
During ventricular systole is ventricular pressure increasing or decreasing?
increasing! :D
Which two valves are open during ventricular systole and closed during ventricular diastole?
The semi-lunar valves
During ventricular systole are AV valves closed?
yes during ventricular systole AV valves are closed.
The greatest force of the blood against the walls of the arteries during ventricular contraction is called?
That is the Systolic Pressure.
Why does tachycardia greater than 200 beats per minutes results in decreased coronary perfusion?
The heart does not have enough time between contractions to fill with enough blood to maintain adequate cardiac output. This is especially a concern because the heart itself is perfused during diastole (the period between ventricular contractions).
What AV and semilunar valve positions during ventricular diastole?
The AV valve is open and the semilunar valve is closed during ventricular diastole.
What is the number of ventricular contractions per minute?
The number of ventricular contractions per minute, also known as the heart rate, typically ranges from 60 to 100 beats per minute in a healthy adult at rest. This rate can vary based on factors such as age, fitness level, and overall health. During physical activity or stress, the heart rate can increase significantly to accommodate the body's demand for oxygen. Monitoring heart rate is important for assessing cardiovascular health and fitness.
