Podcast
Questions and Answers
Where does the left side of the heart pump blood through?
Where does the left side of the heart pump blood through?
- Body systemically (correct)
- Liver
- Heart chambers
- Lungs
Which part of the heart is directed inferiorly to the left?
Which part of the heart is directed inferiorly to the left?
- Mediastinum
- Apex (correct)
- Base
- Ventricles
What is the purpose of pulmonary circulation?
What is the purpose of pulmonary circulation?
- Pump blood through miles of blood vessels in the body systemically
- Supply oxygen to the brain
- Pick up oxygen and unload carbon dioxide in the lungs (correct)
- Exchange materials with body cells
Where is the heart located within the thoracic cavity?
Where is the heart located within the thoracic cavity?
What type of circulation does the right side of the heart perform?
What type of circulation does the right side of the heart perform?
Which part of the thoracic cavity houses the heart?
Which part of the thoracic cavity houses the heart?
What is the function of systemic circulation?
What is the function of systemic circulation?
Which direction is the base of the heart positioned?
Which direction is the base of the heart positioned?
What sets the rhythm of electrical excitation in the heart's conduction system?
What sets the rhythm of electrical excitation in the heart's conduction system?
Which part of the heart is located in the interventricular septum?
Which part of the heart is located in the interventricular septum?
During which phase of the action potential does depolarization occur in cardiac muscle cells?
During which phase of the action potential does depolarization occur in cardiac muscle cells?
What leads to the mechanical response of cardiac muscle contraction?
What leads to the mechanical response of cardiac muscle contraction?
Which structure ensures that the heart chambers contract in a coordinated manner?
Which structure ensures that the heart chambers contract in a coordinated manner?
What is the primary source of ATP for cardiac muscle cells?
What is the primary source of ATP for cardiac muscle cells?
Which channels open during the plateau phase of the action potential in cardiac muscle cells?
Which channels open during the plateau phase of the action potential in cardiac muscle cells?
What happens during repolarization in cardiac muscle cells?
What happens during repolarization in cardiac muscle cells?
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