Answer:
a. QRS
Explanation:
In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.
The QRS complex represents the time necessary for the impulse to travel through the bundle of His, the bundle branches, and the Purkinje fibers to complete ventricular activation or contraction, known as ventricular depolarization. QRS is simply a combination of the Q-wave, R-wave and the S-wave which represents electrical impulses.
Answer:
you could learn to live happier,healthier understand the human mind a lot better and how it works you could be saving your life and saving others from sadness if you do have sucidial thoughts if you get mental help it could make you understand why thou have your thoughts and how to train them
Actually to be normal blood pressure the systolic must be near to 120 while diastolic must be near to 80.... so in this case 124/84 is near to normal so Debbie have normal blood pressure
Answer:
Fuerza: generar tensión frente a una resistencia
Resistencia: mantener un esfuerza contra algo más
Velocidad: maxima intensidad de un esfuerzo
Explanation:
