Unit 4BSupplemental InstructionIowa State University

Leader: TylerCourse: Bio 255

Instructor: HaenDate: 10/31/18

1. Circulation of blood through the heart - indicate systemic and pulmonary circuit.

2. T or F: Pulmonary veins carry deoxygenated blood, and pulmonary arteries carry oxygenated blood.

1)2)3)4)5)6)7)8)9)10)

11)12)13)14)15)16)17)18)19)

3. Blood is carried to the heart by what vessels? What conveys blood away from the heart?

4. Why does the left ventricle have thicker walls than the right ventricle?

5. Name the valves of the heart and their functions. How do they relate to the sounds of the heart?

6. What is the correct sequence of excitation of the heart?

7. During a cardiac cycle, the Atria contract after being stimulated by the _____.8. Describe the differences systole and diastole.9. Identify what valves are involved in the following phases of the cardiac cycle.

- Atrial systole = - Atrial Diastole = - Ventricular diastole = - Ventricular systole =

10. The tricuspid valve is closed whena. The right ventricle is in systoleb. The right atrium is contractingc. By movement of blood from right atrium to right ventricled. While the right ventricle is in diastole