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:
fat
lose muscles and extra skin
Explanation:
Well, I don't do so...
Have a beautiful and joyful day ahead.
Answer:
Her ancestors were wizards, even though her parents weren't, they still had some knowledge of being wizards and stuff. Atleast i think so
Explanation:
Answer: d. cerebrum
Explanation:
The cerebrum is the uppermost and largest portion of the brain. It consists of two cerebral hemispheres, which accounts for the two-thirds of the total weight of the brain. The left hemisphere has function in controlling the language and speech. The other one interprets the spatial and visual information from the stimuli. The cerebrum is also the thinking part of the brain it also controls the movement of the voluntary muscles.
