#1
Which blood vessel carries oxygenated blood away from the heart to the body?
Vein
Artery
Capillary
Venuole
#2
What is the main function of capillaries in the circulatory system?
To carry blood back to the heart
To exchange nutrients and gases with tissues
To pump blood throughout the body
To store excess blood
#3
What is the term for the smallest branches of arteries?
Arterioles
Venioles
Capillaries
Vasculatures
#4
Which of the following is NOT a major type of blood vessel?
Vein
Artery
Capillary
Lymphatic vessel
#5
What is the main function of the lymphatic system in relation to the vascular system?
To transport nutrients to cells
To filter blood
To carry oxygen to tissues
To return excess tissue fluid to the bloodstream
#6
Which of the following is NOT a component of the cardiovascular system?
Heart
Blood vessels
Lungs
Blood
#7
What is the function of valves in the veins?
To prevent backflow of blood
To regulate blood pressure
To control blood pH
To produce red blood cells
#8
What is the function of hemoglobin in red blood cells?
To transport oxygen
To fight infections
To clot blood
To regulate blood sugar levels
#9
What is the medical term for high blood pressure?
Hypertension
Hypotension
Hemorrhage
Ischemia
#10
Where is the carotid artery located?
In the chest
In the abdomen
In the neck
In the leg
#11
Which blood vessel has the thickest walls and is responsible for maintaining blood pressure?
Vein
Artery
Capillary
Venule
#12
Which of the following is a risk factor for cardiovascular disease?
Regular exercise
Healthy diet
Smoking
Stress management
#13
Which of the following statements about veins is true?
Veins carry blood away from the heart
Veins have thick walls with elastic tissue
Veins have valves to prevent backflow of blood
Veins carry oxygenated blood
#14
Which of the following factors contributes to the formation of a blood clot?
Low platelet count
Low blood pressure
Vasoconstriction
High platelet count
#15
Which of the following is NOT a risk factor for developing atherosclerosis?
High cholesterol levels
Obesity
Regular physical activity
Smoking