It would be Alcohol, any drug use,eating unhealthy, smoking,lack of working out, lol basically having intercourse at a young age without any protection, also unintentional injuries or violence.
P.s to prevent most of these all you need to know is right and wrong and if you know these thing can have consequences then don't do them also keep your legs closed , for one of them its important to work out every now and then
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:
May I please have brainliest?!
Explanation:
Quarantine has taught me many new skills such as cleaning,improvement in studying and workout .It has also helped me understand more of my school work.I would say that I have improved from being in quarantine these past weeks. Also I would say quarantine has taught me many things but the most important ones in my opinion would probably be better fitness,I’ve been more organized and I’ve been studying a lot more.I have also been cooking a lot more,so I’ve learned more recipes.
Hope that helped :)
