Question

A red blood cell (RBC) enters the cranial vena cava of a dog and makes its way to the femoral artery of the dog. Choose the correct number corresponding to each component of the circulatory system that the RBC would encounter on its journey.

1. Lungs
Would not be included on this journey by the RBC
2. Right atrium
Would not be included on this journey by the RBC
3. Aorta
Would not be included on this journey by the RBC
4. Right ventricle
Would not be included on this journey by the RBC
5. Left atrium
Would not be included on this journey by the RBC
6. Carotid artery
Would not be included on this journey by the RBC
7. Pulmonary artery
Would not be included on this journey by the RBC
8. Left ventricle
Would not be included on this journey by the RBC
9. Pulmonary vein
Would not be included on this journey by the RBC
i. 3
ii. 1
iii. 6
iv. 2
v. 8
vi. 4
vii. 5
viii. 7

Answer 1

Answer:iii. 6

Explanation: the RBC will enter from the superior vena cava into the right atrium then enters the right ventricle. Then it goes into the lungs through pulmonary artery from lungs it enters the left atrium through pulmonary vein and then enters the left ventricles and from left ventricles it enters the aorta.