Asked by Meghan Green on Jul 12, 2024
Verified
Blood flow through the coronary blood vessels decreases during myocardial contraction and increases during myocardial relaxation.
Myocardial Contraction
The phase of the cardiac cycle during which the heart muscle contracts, forcing blood out of the chambers.
Coronary Blood Vessels
The arteries that supply blood to the heart muscle itself, crucial for its function and vitality.
- Comprehend the function of coronary arteries and veins in supplying oxygen and nutrients to the cardiac muscle.
Verified Answer
LJ
Lauren JosephJul 14, 2024
Final Answer :
True
Explanation :
During myocardial contraction (systole), the coronary vessels are compressed, reducing blood flow. Blood flow increases during myocardial relaxation (diastole) when the heart muscle relaxes and the vessels are no longer compressed, allowing for better perfusion.
Learning Objectives
- Comprehend the function of coronary arteries and veins in supplying oxygen and nutrients to the cardiac muscle.
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