#1
Which chamber of the heart receives oxygenated blood from the lungs?
Left atrium
ExplanationReceives oxygenated blood from the lungs.
#2
What is the main function of red blood cells (RBCs) in the circulatory system?
Carrying oxygen to body tissues
ExplanationMainly responsible for carrying oxygen to body tissues.
#3
Which blood type is considered the universal recipient?
AB
ExplanationAB blood type is the universal recipient.
#4
What is the term for the outermost layer of the heart?
Epicardium
ExplanationOutermost layer is the epicardium.
#5
Which of the following is NOT a major component of blood?
Lymphocytes
ExplanationLymphocytes are not a major component of blood.
#6
What is the term for the process of blood cell formation?
Hematopoiesis
ExplanationProcess is called hematopoiesis.
#7
Which vessel carries oxygen-rich blood away from the heart to the rest of the body?
Aorta
ExplanationCarries oxygen-rich blood from the heart to the body.
#8
What is the medical term for a heart attack?
Myocardial infarction
ExplanationMedically termed as myocardial infarction.
#9
What is the name of the valve between the left atrium and the left ventricle?
Mitral valve
ExplanationCalled the mitral valve.
#10
What is the term for the process of blood clotting?
Coagulation
ExplanationThe process is called coagulation.
#11
Which of the following is NOT a major blood vessel directly connected to the heart?
Carotid artery
ExplanationCarotid artery is not directly connected to the heart.
#12
What is the term for the smallest branches of arteries that lead to capillaries?
Arterioles
ExplanationSmallest branches leading to capillaries are arterioles.
#13
Which of the following conditions results from a lack of adequate blood flow to the heart muscle?
Angina pectoris
ExplanationCondition due to inadequate blood flow to heart muscle.
#14
Which of the following is NOT a major type of blood vessel?
Ligament
ExplanationLigament is not a major type of blood vessel.
#15
Which part of the heart initiates the heartbeat and sets the pace for the entire heart?
Sinoatrial node (SA node)
ExplanationInitiates heartbeat and sets the pace.
#16
What is the term for the total volume of blood pumped by the heart per minute?
Cardiac output
ExplanationTotal volume of blood pumped per minute is cardiac output.