circulation of the heart Flashcards
What is the primary function of the heart?
To pump blood throughout the body.
True or False: The heart has four chambers.
True.
Fill in the blank: The right atrium receives blood from the _____ circulation.
systemic.
What are the names of the four chambers of the heart?
Right atrium, right ventricle, left atrium, left ventricle.
Which side of the heart is responsible for pumping oxygenated blood?
The left side.
Multiple choice: Which vessel carries deoxygenated blood to the heart? A) Aorta B) Pulmonary artery C) Pulmonary vein
B) Pulmonary artery.
What is the role of the aorta?
To distribute oxygenated blood from the heart to the body.
True or False: The left ventricle has thicker walls than the right ventricle.
True.
Fill in the blank: The _____ valves prevent backflow of blood into the atria.
atrioventricular.
What is the function of the pulmonary circulation?
To carry deoxygenated blood from the heart to the lungs.
Multiple choice: Which chamber receives blood from the lungs? A) Right atrium B) Left atrium C) Right ventricle
B) Left atrium.
What is the name of the valve between the left atrium and left ventricle?
Mitral valve.
True or False: Blood flows through the heart in a single direction.
True.
Fill in the blank: The _____ node initiates the heartbeat.
sinoatrial.
What is the role of the coronary arteries?
To supply blood to the heart muscle.
Multiple choice: Which structure acts as a pacemaker for the heart? A) Bundle of His B) Purkinje fibers C) Sinoatrial node
C) Sinoatrial node.
What happens during diastole?
The heart muscles relax and chambers fill with blood.
True or False: The tricuspid valve is located between the right atrium and right ventricle.
True.
Fill in the blank: The _____ circulation involves the flow of blood between the heart and the rest of the body.
systemic.
What is the function of the valves in the heart?
To prevent the backflow of blood.
Multiple choice: Which chamber pumps blood to the lungs? A) Left ventricle B) Right ventricle C) Right atrium
B) Right ventricle.
What is the significance of the interventricular septum?
It separates the left and right ventricles.
True or False: The heart is located in the thoracic cavity.
True.
Fill in the blank: The _____ veins return deoxygenated blood from the body to the heart.
superior and inferior vena cava.
