Heart Anatomy
This muscular organ pumps blood throughout the body.
What is the heart?
These vessels carry blood away from the heart.
What are arteries?
The fluid portion of blood is called ____.
What is plasma?
Blood picks up oxygen in this organ.
What are the lungs?
This instrument is used to measure blood pressure.
What is a sphygmomanometer?
This chamber receives deoxygenated blood from the body.
What is the right atrium?
These vessels are the site of gas and nutrient exchange.
What are capillaries?
These cells carry oxygen using hemoglobin.
What are red blood cells (erythrocytes)?
This circulation path moves blood between the heart and lungs.
What is pulmonary circulation?
This term refers to heart contraction.
What is systole?
This valve prevents backflow from the aorta into the left ventricle.
What is the aortic valve?
These vessels return blood to the heart.
What are veins?
These blood cells fight infection.
What are white blood cells (leukocytes)?
This side of the heart receives oxygenated blood.
What is the left side?
A healthy adult's resting heart rate typically falls within this range (bpm).
What is 60–100 bpm?
These are the two lower chambers of the heart.
What are the ventricles?
This large artery carries oxygenated blood from the heart to the body.
What is the aorta?
These help blood to clot.
What are platelets (thrombocytes)?
The first chamber blood enters when it returns from the body.
What is the right atrium?
This node is the heart’s natural pacemaker.
What is the sinoatrial (SA) node?
This part of the heart's wall is responsible for its muscular contractions
What is the myocardium?
These vessels in the neck supply blood to the brain.
What are the carotid arteries?
This iron-rich molecule allows red blood cells to carry oxygen.
What is hemoglobin?
Fill in the blanks: this is the correct order of blood flow through the heart: right atrium → ____ → lungs → left atrium → ____ → body.
What are right ventricle and left ventricle?
This is the electrical sequence of the heart through an EKG (use letters).
What is P wave → QRS complex → T wave?