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:
Explanation:
The respiratory system which includes the organs used for breathing and the skeletal system which is responsible for body support and aids it proper movement interact and can be interwoven functionally in the following ways:
1. The bones in the nose called nasal conchae form swirl like shapes in the nose region that aids the passage of warm air from the nose to the lungs.
2. The centre of the human bones consist of the bone marrow which is responsible for the production and formation of red blood cells, white blood cells and platelets. These red blood cells carry oxygen from the lungs to other parts of the body like a transport system.
3. The thoracic or rib cage protects the lungs from damage and ensures stability.
Usually there is a big difference when it comes to the purpose of the medical research. For instance, with forensics, you are attempting to solve passed crimes with DNA found on scenes. However, with medical, you are using DNA to do things for the living, or to help people stay alive. This could range anywhere from organ donations to blood mutations.
I'm going to be a forensics major, so if you have any more questions, PM me!
Hope this helps! <3
I think it’s empathy or conciseness hope this helps!
