7 Questions
During which phase do the ventricles passively fill just before the next beat?
Late Ventricular Diastole
What is the main function of the pulmonary circulation?
Transport deoxygenated blood to lungs to get oxygen
Which heart condition is characterized by abnormal electrical signals causing uneven heart beats?
Arrhythmia
Which chamber of the heart has thicker muscular walls than the right ventricle?
Left ventricle
During which phase of the cardiac cycle do the atria contract, forcing blood into the ventricles?
Atrial systole
What prevents the mixing of oxygenated and deoxygenated blood in the heart?
Septum
Through which valve does blood flow from the left atrium into the left ventricle?
Mitral valve
Study Notes
Cardiac Cycle
- Ventricles passively fill with blood just before the next beat during the diastole phase.
Pulmonary Circulation
- The main function of the pulmonary circulation is to take deoxygenated blood from the heart to the lungs to pick up oxygen and release carbon dioxide.
Heart Conditions
- Atrial fibrillation is a heart condition characterized by abnormal electrical signals causing uneven heart beats.
Heart Structure
- The left ventricle has thicker muscular walls than the right ventricle.
Cardiac Cycle Phases
- During the atrial contraction phase of the cardiac cycle, the atria contract, forcing blood into the ventricles.
Heart Function
- The septum prevents the mixing of oxygenated and deoxygenated blood in the heart.
Heart Valves
- Blood flows from the left atrium into the left ventricle through the mitral valve.
Test your knowledge of the basic anatomy and physiology of the human heart with this quiz. Identify and describe the functions of major parts of the heart, and label a heart diagram with 5 key parts.
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