5 Questions
El corazón tiene cinco cámaras.
False
La capa más interna del corazón se llama epicardio.
False
La aurícula derecha recibe sangre oxigenada de los pulmones.
False
El ventrículo izquierdo bombea sangre a los pulmones.
False
La válvula tricúspide se encuentra entre la aurícula izquierda y el ventrículo izquierdo.
False
Study Notes
Heart Anatomy
Location and Structure
- Located in the thoracic cavity, between the lungs
- Protected by the rib cage
- Conical shape, with the apex pointing downwards and the base attached to the great vessels
- Divided into four chambers: left and right atria, and left and right ventricles
Heart Wall Layers
- Epicardium: outermost layer, thin layer of connective tissue
- Myocardium: middle layer, thick layer of cardiac muscle
- Endocardium: innermost layer, thin layer of epithelial tissue
Heart Chambers
-
Right Atrium (RA)
- Receives deoxygenated blood from the body through the superior and inferior vena cavae
- Walls are thin and relatively weak
-
Right Ventricle (RV)
- Pumps blood from the RA to the lungs through the pulmonary artery
- Walls are thicker and stronger than the RA
-
Left Atrium (LA)
- Receives oxygenated blood from the lungs through the pulmonary veins
- Walls are thin and relatively weak
-
Left Ventricle (LV)
- Pumps blood from the LA to the rest of the body through the aorta
- Walls are thicker and stronger than the LA
Heart Valves
-
Atrioventricular (AV) valves
- Tricuspid valve: between RA and RV
- Mitral valve: between LA and LV
- Prevent backflow of blood from ventricles to atria
-
Semilunar valves
- Pulmonary valve: between RV and pulmonary artery
- Aortic valve: between LV and aorta
- Prevent backflow of blood from arteries to ventricles
Aprende sobre la ubicación y estructura del corazón, sus capas de pared, cámaras y válvulas. Conoce la función de cada parte del corazón y cómo funcionan juntas.
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