#1
Which of the following is NOT a function of the respiratory system?
Produce and distribute hormones
ExplanationRespiratory system primarily facilitates gas exchange.
#2
Which blood vessel carries deoxygenated blood from the heart to the lungs?
Pulmonary artery
ExplanationPulmonary artery transports blood from heart to lungs for oxygenation.
#3
Which of the following is a risk factor for developing cardiovascular disease?
High blood pressure
ExplanationHigh blood pressure increases the risk of cardiovascular diseases.
#4
What is the role of the sinoatrial (SA) node in the heart?
Initiation of the heart's electrical impulse
ExplanationSA node initiates the heart's electrical signal for contraction.
#5
What is the term for the medical procedure used to visualize the inside of blood vessels and organs of the body, such as the coronary arteries?
Angiogram
ExplanationAngiogram is a diagnostic tool for visualizing blood vessels.
#6
Which of the following is a common side effect of beta-blockers used in cardiovascular care?
Bradycardia
ExplanationBeta-blockers can reduce heart rate, leading to bradycardia.
#7
What is the main function of alveoli in the lungs?
Exchange oxygen and carbon dioxide with the blood
ExplanationAlveoli facilitate the exchange of gases between lungs and blood.
#8
Which condition is characterized by inflammation and narrowing of the airways, leading to wheezing, coughing, and shortness of breath?
Asthma
ExplanationAsthma involves airway inflammation, causing breathing difficulties.
#9
Which layer of the heart wall is responsible for the heart's pumping action?
Myocardium
ExplanationMyocardium contracts to pump blood throughout the body.
#10
What is the term for the accumulation of fatty deposits on the inner walls of arteries?
Atherosclerosis
ExplanationAtherosclerosis leads to arterial narrowing due to plaque buildup.
#11
What is the primary function of the cardiovascular system?
Transporting oxygen and nutrients to cells
ExplanationThe cardiovascular system delivers oxygen and nutrients to body tissues.
#12
Which of the following is a risk factor for developing pulmonary embolism?
Recent surgery or prolonged immobility
ExplanationRecent surgery or immobility increases the risk of pulmonary embolism.
#13
What is the term for the volume of blood pumped by the heart per minute?
Cardiac output
ExplanationCardiac output is the amount of blood pumped by heart in a minute.
#14
Which of the following is NOT a symptom of a heart attack?
Hypertension
ExplanationHypertension is not a direct symptom of a heart attack.
#15
What is the term for the condition in which the heart's electrical impulses are disorganized, leading to an irregular heartbeat?
Atrial fibrillation
ExplanationAtrial fibrillation results in irregular heart rhythms.
#16
Which of the following is a common complication of untreated hypertension?
Aortic dissection
ExplanationUntreated hypertension can lead to complications such as aortic dissection.
#17
Which of the following is a common medication used to treat hypertension?
Losartan
ExplanationLosartan is a common medication prescribed for hypertension.