GEMP - Cardiovascular System
Cardiovascular System Introduction The cardiovascular system, also known as the circulatory system, is crucial for sustaining life by facilitating the transport of oxygen, nutrients, hormones, and waste products throughout the body. Its relevance in medicine cannot be overstated, as cardiovascular diseases remain one of the leading causes of morbidity and mortality worldwide. A comprehensive ...
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Question 1
What happens during pulmonary circulation?
Explanation
During pulmonary circulation, deoxygenated blood is pumped from the right ventricle to the lungs to receive oxygen.
Question 2
Which chamber of the heart is primarily responsible for pumping oxygenated blood into the aorta?
Explanation
The left ventricle pumps oxygenated blood into the aorta, distributing it to the rest of the body.
Question 3
During which phase of the cardiac cycle do the heart chambers contract to pump blood out?
Explanation
Systole is the contraction phase where the heart chambers contract to pump blood out of the heart.
Question 4
Which structure in the heart acts as the primary pacemaker?
Explanation
The Sinoatrial (SA) Node is the primary pacemaker of the heart, initiating the heartbeat.
Question 5
Which factors influence blood pressure?
Explanation
Blood pressure is influenced by cardiac output, blood volume, and peripheral resistance.
Question 6
What condition is characterized by the heart's inadequate pumping capacity and fluid buildup?
Explanation
Heart failure occurs when the heart's ability to pump blood is inadequate, leading to fluid buildup and reduced oxygen delivery.
Question 7
What is a common misconception about the onset of cardiovascular diseases?
Explanation
A common misconception is that cardiovascular diseases only affect older adults, but risk factors can begin early in life.
Question 8
Which part of the heart's electrical conduction system delays the electrical signal before it travels to the ventricles?
Explanation
The Atrioventricular (AV) Node delays the electrical signal before it travels to the ventricles, allowing them to fill with blood.