Answer:
The correct answer will be option-A.
Explanation:
The cardiac cycle of the heart is divided into two phases: contraction (systole) and relaxation (diastole).
The atria and ventricles of the heart contract simultaneously in response to the impulse generated in the SA node. The contraction of the atria and ventricles push the blood or pumps the blood.
The atrial systole pumps blood to ventricles whereas the ventricular systole pumps blood to the body parts.
Thus, option-A is the correct answer.
Answer: E) A and B only
Explanation:
Hemoglobin can be define as red color protein which consists of iron group in the red blood cells. It carries oxygen to all the organs of the body and tissues and transports carbon dioxide from all the tissues and organs back to the lungs so that the carbon dioxide get expelled out of the body. It helps in transport of gases (carbon dioxide and oxygen). But does not help in clotting of blood.
Pharmacodynamics is the study of the biochemical and physiologic effects of drugs.
Answer: Prostrate gland
Explanation:
Prostrate gland is the part of male reproductive system. It is present at the base of the bladder. It produce the fluid which comes as seminal vesicles through ejaculatory ducts finally to the urethra. The urethra is a tube which runs through prostrate gland. In case of cancer, the imflammation of prostrate takes place. As a result of this urethra tube becomes narrow and restricts the flow of urine.
