What is the difference between pulmonary and systemic circulation?
Pulmonary circulation involves the exchange of gases in the lungs, while systemic circulation supplies oxygenated blood to the body and returns deoxygenated blood to the heart.
What causes hypertension?
Hypertension is caused by factors like genetics, lifestyle, stress, and underlying health conditions.
What is an electrocardiogram (ECG)?
An ECG is a graphical representation of the electrical activity of the heart used to detect heart conditions.
How does the heart regulate its own activity?
The heart's activity is regulated by the sinoatrial node (pacemaker) and the autonomic nervous system.
What is the significance of the Rh factor in blood transfusions?
The Rh factor determines compatibility for blood transfusions; mismatched Rh factors can lead to immune reactions.
How is oxygen transported in the blood?
Oxygen is primarily transported by hemoglobin in red blood cells.
What are the main components of blood?
Blood consists of plasma (fluid part) and formed elements (RBCs, WBCs, and platelets).
What is the primary function of blood?
Blood transports oxygen, nutrients, hormones, and waste products throughout the body.
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