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Title: Heart structure
Description: • Provides an overview of the anatomy of the heart and the structure of cardiac muscle; ~ four chambered heart and double circulation ~ heart valves and their functions ~ cardiac muscle structure and conduction system ~ stroke volume, cardiac output and mean arterial pressure
Description: • Provides an overview of the anatomy of the heart and the structure of cardiac muscle; ~ four chambered heart and double circulation ~ heart valves and their functions ~ cardiac muscle structure and conduction system ~ stroke volume, cardiac output and mean arterial pressure
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Heart Structure and Cardiac Muscle
• Provides an overview of the anatomy of the heart and the structure of cardiac muscle;
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four chambered heart and double circulation
heart valves and their functions
cardiac muscle structure and conduction system
stroke volume, cardiac output and mean arterial pressure
Anatomy of the Heart
• The heart is located between the lungs in the chest cavity
• The heart has 4 chambers that pump blood through 2 vascular systems at about the same rate but at
different pressures: 1) pulmonary (lungs)
2) systemic (body)
• Major structures of the heart:
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right atria receives blood from the vena cava
right ventricle receives blood from the right atria
left atria receives blood from the pulmonary veins
left ventricle receives blood from the left atria
the heart valves ensure one directional flow
• Blood leaves the right ventricle via the pulmonary artery and the left ventricle via the aorta
Heart Cycle (timings)
• Typical resting heart rate is 60 – 80 bpm
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1 beat per 0
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4 seconds
2) Atria contract and fill the ventricles in only 0
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3 seconds
• The cycle will only take 0
Title: Heart structure
Description: • Provides an overview of the anatomy of the heart and the structure of cardiac muscle; ~ four chambered heart and double circulation ~ heart valves and their functions ~ cardiac muscle structure and conduction system ~ stroke volume, cardiac output and mean arterial pressure
Description: • Provides an overview of the anatomy of the heart and the structure of cardiac muscle; ~ four chambered heart and double circulation ~ heart valves and their functions ~ cardiac muscle structure and conduction system ~ stroke volume, cardiac output and mean arterial pressure