The heart – Please help me answer True & False Questions. Thanks?
1). Blood low in oxygen and high in carbon dioxide, enters the right atrium via the vena cava and coronary sinus
a. true b. false
2). Gas exchange occurs between blood in the capillaries and air in the alveoli.
a. true b. false
3). The tricuspid valve closes when the right ventricle contracts and blood moves through the pulmonary valve and into the pulmonary trunk and arteries.
a. true b. false
4). From the pulmonary arteries the blood enters the capillaries associated with the aveoli.
a. true b. false
5). Freshly oxygenated blood low in carbon dioxide returns to the heart through the pulmonary veins to the left atrium.
a. true b. false
6). The left atrial valve contracts and blood moves through the mitral valve into left ventricle.
a. true b. false
7. When the left ventricular valve contracts, the mitral valve closes and blood moves through the aortic valve into the aorta and its branches.
a. true b. false
8). The right and left coronary arteries supply blood to the rest of the body.
a. true b. false
9). A thrombus or embolus blocks myocardial cells of oxygen.
a. true b. false
10). The above sequences are all in order.
a. true b. false
My answer:
1. true
2. true
3. true
4. true
5. true
6. false
7. false
8. true
9. true
10. true
If you have something different, please correct me…thanks
Sinus Health Products Marketplace
Posted in 
Tags: