The Heart Flashcards
What is the primary function of the heart?
To pump blood throughout the body.
True or False: The heart is a muscle.
True.
Fill in the blank: The heart consists of _____ chambers.
four
What are the names of the four chambers of the heart?
Right atrium, right ventricle, left atrium, left ventricle.
Which chamber receives oxygenated blood from the lungs?
Left atrium.
What is the role of the right ventricle?
To pump deoxygenated blood to the lungs.
True or False: The heart has its own electrical system.
True.
What is the name of the node that initiates heartbeats?
Sinoatrial (SA) node.
Fill in the blank: The _____ valve prevents backflow into the left atrium.
mitral
What is the role of the aorta?
To carry oxygenated blood from the heart to the body.
Which blood vessels carry deoxygenated blood to the heart?
Veins.
What is the purpose of the coronary arteries?
To supply blood to the heart muscle itself.
True or False: The heart can function without the brain.
True.
What is cardiac output?
The volume of blood the heart pumps per minute.
Fill in the blank: The heart is located in the _____ cavity.
thoracic
What is the average resting heart rate for adults?
60 to 100 beats per minute.
Which part of the heart is responsible for pumping blood to the lungs?
Right ventricle.
What type of blood do pulmonary veins carry?
Oxygenated blood.
True or False: The heart is divided into left and right halves.
True.
What is the role of the tricuspid valve?
To prevent backflow from the right ventricle to the right atrium.
Fill in the blank: The heart is encased in a protective sac called the _____.
pericardium
What does the term ‘myocardium’ refer to?
The muscular tissue of the heart.
What is the significance of the left ventricle?
It pumps oxygenated blood to the entire body.
True or False: The heart has a natural pacemaker.
True.
