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.
I think its thru blood cells im not sure though.
Answer:
Yes, I agree with this concept of behaviorists.
Explanation:
According to behaviorist view, true personal freedom does not exist. Personal freedom includes a lot of things like freedom of opinions, freedom of coming and going, freedom of religion, the freedom of right to privacy, the freedom of choosing careers, freedom of choosing the lifestyle, freedom of choosing the life partner and anything that involves a person's own choice of making decisions in his or her life.
I totally agree with the view of behaviorists. They say that true personal freedom does not exist. In many societies, people don't have rights to choose what they want. They can't make decisions for their personal stuff. They can't even choose what they actually want to study, they can't move in or out according to their will, they can't speak their heart out, they can't choose their religion, etc. So it is indeed true that personal freedom does not exist.
