WorksheetsChapter 15 part 2
Total questions: 8
Worksheet time: 9mins
What are the two closed circuits included in the Cardiovascular System?
Pulmonary circuit and Systemic circuit
Arteries and Veins
Atria and Ventricles
Heart and Blood Vessels
What is the function of the myocardium?
Contracts to pump blood from the heart chambers
Forms a protective outer covering
Reduces friction
Forms inner lining of all heart chambers
What are the three distinct layers of the heart wall?
Epicardium, Myocardium, Endocardium
Atria, Ventricles, Valves
Arteries, Veins, Capillaries
Fibrous, Parietal, Visceral
What is the role of the SA node in the heart?
Controls the heart rate
Pumps blood to the lungs
Separates the left and right atria
Prevents backflow of blood
What is the first heart sound (S1) associated with?
Closing of the AV valves
Closing of the pulmonary and aortic semilunar valves
Atrial contraction
Ventricular relaxation
What is the function of the tricuspid valve?
Prevents blood from moving from the right ventricle into the right atrium during ventricular contraction
Prevents blood from moving from the left ventricle into the left atrium during ventricular contraction
Prevents blood from moving from the aorta into the left ventricle during ventricular relaxation
Prevents blood from moving from the pulmonary trunk into the right ventricle during ventricular relaxation
What is the normal heart rate controlled by?
What is the definition of arrhythmias?
