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:
The step Anna should avoid to reduce the risk of food-borne illness is option D, thawing the frozen ground meat on the kitchen counter.
Explanation:
Any frozen food should be defrosted in a colder environment than room temperature. That is because at room temperature there is a greater risk of microorganisms being able to reproduce, while in colder temperatures than 5ºC pathogens and toxins aren't able to multiply.
Answer: Comes from within matches with #5
A person who guides or directs is a #4
Neither too hard or too easy #3
Respect for others #2
places importance on autonomy #1
Explanation:
<span>B. occur when a patient doesn't produce enough leukocytes.</span>
