B. Give one word for the following.
1. The valves present on the opening between right auricle and right ventricle
2. The muscles that form heart walls
3. The heart chamber that receives oxygenated blood from lungs
4. The blood group which has both types of antigens
Answers
Explanation:
1.The four heart valves include the following: tricuspid valve: located between the right atrium and the right ventricle. pulmonary valve: located between the right ventricle and the pulmonary artery.
2. The myocardium is composed of cardiac muscle and is an involuntary striated muscle. The myocardium is responsible for contractions of the heart.
3. The right ventricle pumps the blood to the lungs where it becomes oxygenated. The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.
4. Blood group AB has both A and B antigens, but no antibodies. Both the ABO and the Rh blood types are important when it comes to matching blood types for transfusion.