11.1 a, b Anatomy of the Heart

How many cavities or chambers does the heart have?

• Two

• Three

• Four

• Six

What is the primary function of the ventricles in the heart?

• To assist with filling the atria

• To serve as the discharging chambers

• To receive oxygen-poor blood

• To pump blood into the pulmonary arteries

What is the role of the right side of the heart in the circulatory system?

• It pumps oxygen-rich blood to the body tissues

• It receives oxygen-poor blood and pumps it to the lungs

• It serves as the primary source of blood for the atria

• It discharges blood directly into the systemic circulation

Which part of the heart is referred to as the interatrial septum?

• The septum that divides the heart longitudinally

• The septum where it divides the atria and the ventricles

• The septum that divides the atria

• The septum that divides the ventricles

What is the systemic circulation responsible for?

• Delivering oxygen-poor blood to the lungs

• Pumping blood from the veins of the body through the large superior vena cava

• Supplying oxygen- and nutrient-rich blood to all body organs

• Assisting the atria in filling the ventricles

Which ventricle has substantially thicker walls and is a more powerful pump?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

What is the primary role of the atria in the heart?

• To pump blood into the ventricles

• To pump blood directly into the systemic circulation

• To receive oxygen-rich blood from the lungs

• To filter blood

What does the term 'cardiac cycle' refer to?

• The flow of blood through the heart's four chambers

• The sequence of events that occur in a single heartbeat

• The process of blood exchange between the heart and lungs

• The regeneration of heart cells

Which artery carries oxygen-poor blood from the heart to the lungs?

• Aorta

• Pulmonary artery

• Coronary artery

• Carotid artery

Where is the location of the heart in the thorax?

• mediastinium

• lateral section

• posterior section

• pericardium