heart lungs to the whole part of the body excluding the lungs. 9. It acts as the pump in the circulatory system 10. It is the main organ in the respiratory system which gives oxygen to the circulatory system TRUE OR FALSE Write the word True if the statement is correct and False if otherwise. True 1. Oxygenated blood shows a red blood color 2. Deoxygenated blood shows a blue blood color. 3. Respiratory system brings oxygen into our bodies and gets rid of carbon dioxide. 4. When we breathe in or inhale, our diaphragm will contract and our chest cavity will expand. 5. When we breathe out or exhale, our diaphragm will relax and our chest cavity will be back to normal. 6. Our blood enters from the right part of heart and exits in the left part of the heart. 7. Circulatory systems carries also the nutrients that we get from the food we eat. 8. Circulatory system and respiratory system work together. 9. Pulmonary circulation is a flow of blood from the heart to the lungs and back to the heart. 10. Nutrient is carried away by the blood together with the
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Answer:
The heart is a complex muscle that pumps blood through the three divisions of the circulatory system: the coronary (vessels that serve the heart), pulmonary (heart and lungs), and systemic (systems of the body), as shown in Figure 21.10. Coronary circulation intrinsic to the heart takes blood directly from the main artery (aorta) coming from the heart. For pulmonary and systemic circulation, the heart has to pump blood to the lungs or the rest of the body, respectively. In vertebrates, the lungs are relatively close to the heart in the thoracic cavity. The shorter distance to pump means that the muscle wall on the right side of the heart is not as thick as the left side which must have enough pressure to pump blood all the way to your big toe.
Explanation:
Figure_40_03_01ab
Figure 21.10. The mammalian circulatory system is divided into three circuits: the systemic circuit, the pulmonary circuit, and the coronary circuit. Blood is pumped from veins of the systemic circuit into the right atrium of the heart, then into the right ventricle. Blood then enters the pulmonary circuit, and is oxygenated by the lungs. From the pulmonary circuit, blood re-enters the heart through the left atrium. From the left ventricle, blood re-enters the systemic circuit through the aorta and is distributed to the rest of the body. The coronary circuit, which provides blood to the heart, is not shown.
Which of the following statements about the circulatory system is false?
Blood in the pulmonary vein is deoxygenated.
Blood in the inferior vena cava is deoxygenated.
Blood in the pulmonary artery is deoxygenated.
Blood in the aorta is oxygenated.
Structure of the Heart.
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