#1
Which blood vessels carry oxygen-rich blood away from the heart?
Arteries
ExplanationArteries carry oxygen-rich blood away from the heart.
#2
What is the primary function of veins in the circulatory system?
Carry deoxygenated blood away from the heart
ExplanationVeins primarily carry deoxygenated blood away from the heart.
#3
Which blood vessel carries deoxygenated blood from the heart to the lungs?
Pulmonary artery
ExplanationThe pulmonary artery carries deoxygenated blood from the heart to the lungs.
#4
What is the name of the condition characterized by the accumulation of fluid in the interstitial spaces, leading to swelling?
Edema
ExplanationEdema is the condition characterized by the accumulation of fluid in the interstitial spaces, leading to swelling.
#5
What is the term for the condition characterized by an irregular heartbeat?
Arrhythmia
ExplanationArrhythmia is the term for the condition characterized by an irregular heartbeat.
#6
Which of the following substances is primarily responsible for the formation of blood clots?
Platelets
ExplanationPlatelets are primarily responsible for the formation of blood clots.
#7
Which of the following is NOT a major risk factor for cardiovascular disease?
Regular exercise
ExplanationRegular exercise is not a major risk factor for cardiovascular disease.
#8
What is the term for the measurement of pressure exerted by circulating blood upon the walls of blood vessels?
Blood pressure
ExplanationBlood pressure is the measurement of pressure exerted by circulating blood upon the walls of blood vessels.
#9
What is the main function of the endothelium in blood vessels?
Maintain vascular tone and integrity
ExplanationThe endothelium in blood vessels maintains vascular tone and integrity.
#10
Which hormone plays a key role in regulating blood pressure by acting on the kidneys and blood vessels?
Aldosterone
ExplanationAldosterone plays a key role in regulating blood pressure by acting on the kidneys and blood vessels.
#11
What is the term for the condition characterized by the accumulation of fatty deposits in the walls of arteries?
Atherosclerosis
ExplanationAtherosclerosis is the condition characterized by the accumulation of fatty deposits in the walls of arteries.
#12
Which of the following is NOT a major risk factor for developing hypertension?
Regular exercise
ExplanationRegular exercise is NOT a major risk factor for developing hypertension.
#13
Which of the following is a characteristic of arterioles?
Small diameter and high resistance to blood flow
ExplanationArterioles have a small diameter and high resistance to blood flow.
#14
What is the name of the phenomenon where blood pressure decreases as blood flows away from the heart due to the resistance encountered in the blood vessels?
Peripheral resistance
ExplanationPeripheral resistance is the phenomenon where blood pressure decreases as blood flows away from the heart due to the resistance encountered in the blood vessels.