cardiovascular quiz

 Practice Problems

1. Which of the following lists the primary parts of the heart?

1. Blood cells
2. Muscle tissue split into two chambers
3. Muscle tissue split into four chambers
4. Four ventricles

2. Which of the following blood components is responsible for transporting oxygen?

1. Red blood cells
2. Plasma
3. Dissolved gases
4. Leukocytes

3. Which of the following chambers pumps blood toward

the lungs?

1. Left atrium
2. Right atrium
3. Left ventricle
4. Right ventricle

4. Which of the following statements best describes the function of veins?

1. Veins carry deoxygenated blood.
2. Veins carry oxygenated blood.
3. Veins carry blood back to the heart.
4. Veins carry blood away from the heart.

5. In two to three sentences, describe two chambers of the

be thicker?

heart that have thicker walls. Why would these chambers

SA node

 SA node 

contraction control by peace maker called the sino atrial node