Multiple Choice 1 point A patient is diagnosed with hypertension. Which of the following best explains how sustained high blood pressure might lead to complications in the circulatory system? It primarily leads to a decrease in blood volume. It immediately decreases the blood's oxygen-carrying capacity. It increases the workload on the heart, which may eventually lead to heart failure. It directly causes blood clots in all major vessels. Multiple Choice 1 point" Which scenario best illustrates the interaction between the respiratory and circulatory systems? The lungs filter out toxins before the blood reaches the heart. The heart directly supplies oxygen to the lungs for gas exchange. The diaphragm's contraction increases lung capacity, causing a significant rise in blood pressure. Oxygenenters the bloodstream th ough the lungs and is then delivered to tissues by the heart.

## Step1<br />The first question is about the complications that can arise from sustained high blood pressure, also known as hypertension. The options provided are:<br />- It primarily leads to a decrease in blood volume.<br />- It immediately decreases the blood's oxygen-carrying capacity.<br />- It increases the workload on the heart, which may eventually lead to heart failure.<br />- It directly causes blood clots in all major vessels.<br /><br />## Step2<br />The correct answer is "It increases the workload on the heart, which may eventually lead to heart failure." This is because hypertension forces the heart to work harder to pump blood, which can lead to heart failure over time.<br /><br />## Step3<br />The second question is about the interaction between the respiratory and circulatory systems. The options provided are:<br />- The lungs filter out toxins before the blood reaches the heart.<br />- The heart directly supplies oxygen to the lungs for gas exchange.<br />- The diaphragm's contraction increases lung capacity, causing a significant rise in blood pressure.<br />- Oxygen enters the bloodstream through the lungs and is then delivered to tissues by the heart.<br /><br />## Step4<br />The correct answer is "Oxygen enters the bloodstream through the lungs and is then delivered to tissues by the heart." This is because the respiratory system is responsible for oxygenating the blood, while the circulatory system is responsible for delivering this oxygen-rich blood to the tissues.