#1
Which of the following is a primary function of the cardiovascular system?
Digestion
Transportation of oxygen and nutrients
Vision
Muscle contraction
#2
What is the main function of hemoglobin in the blood?
Carrying oxygen to tissues
Digesting nutrients
Producing antibodies
Regulating blood pressure
#3
Which valve separates the left atrium from the left ventricle in the heart?
Tricuspid valve
Mitral valve
Aortic valve
Pulmonary valve
#4
What is the medical term for the process of stopping bleeding?
Hemolysis
Hemostasis
Hematopoiesis
Hemoglobinopathy
#5
What is the primary function of the pericardium in the heart?
Pumping blood
Secreting hormones
Providing a protective sac around the heart
Filtering toxins from the blood
#6
What is the normal range for adult resting heart rate?
60-80 beats per minute
100-120 beats per minute
40-50 beats per minute
90-110 beats per minute
#7
Which blood component is responsible for clotting and preventing excessive bleeding?
Red blood cells
Platelets
Plasma
White blood cells
#8
Which condition is characterized by an abnormal decrease in the number of platelets in the blood?
Thrombocytosis
Thrombocytopenia
Leukocytosis
Anemia
#9
What is the primary function of the sinoatrial (SA) node in the heart?
Conducting electrical impulses to the ventricles
Pumping blood into the arteries
Initiating the heartbeat
Regulating blood pressure
#10
What is the term for the process of blood cell formation?
Hematopoiesis
Hemostasis
Hemolysis
Hemoconcentration
#11
What is the medical term for high blood pressure?
Hypotension
Hypertension
Hemorrhage
Aneurysm
#12
Which of the following is a risk factor for cardiovascular disease?
Regular exercise
Low cholesterol levels
Smoking
High-fiber diet
#13
Which blood type is considered the universal donor?
#14
What is the primary role of anticoagulant medications in cardiovascular care?
Increasing blood pressure
Preventing blood clot formation
Stimulating red blood cell production
Enhancing cholesterol levels
#15
What is the primary role of erythropoietin in the body?
Regulating blood sugar levels
Stimulating red blood cell production
Promoting blood clotting
Filtering toxins from the blood