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The Muscles of the Heart •The heart has specific muscles that cause the heart to contract and open and close the heart values. Some of these muscles are: •Trabeculae Carneae –Irregular muscles of the ventricles •Chordae Tendineae –Small cords that connect the heart values to the papillary muscles
Heart Anatomy and Structure. Figure 2 is a 3-D interactive heart. As you read about the heart’s components, click on their names in the list to identify and visualize them. Heart: A powerful muscle slightly larger than a clenched fist. It is composed of four chambers, two upper (the atria) and two lower (the ventricles).
- Heart anatomy. The heart has five surfaces: base (posterior), diaphragmatic (inferior), sternocostal (anterior), and left and right pulmonary surfaces. It also has several margins: right, left, superior, and inferior
- Heart valves. Heart valves separate atria from ventricles, and ventricles from great vessels. The valves incorporate two or three leaflets (cusps) around the atrioventricular orifices and the roots of great vessels.
- Blood flow through the heart. The blood flow through the heart is quite logical. It happens with the heart cycle, which consists of the periodical contraction and relaxation of the atrial and ventricular myocardium (heart muscle tissue).
- Coronary circulation. The heart must also be supplied with oxygenated blood. This is done by the two coronary arteries: left and right. Heart muscles work constantly (thank goodness!)
Label Heart Diagram Worksheet PDF is a useful educational resource for students studying the cardiovascular system. This worksheet provides an opportunity for students to practice labeling the different parts of the heart, such as the atria, ventricles, valves, and major blood vessels.
Oct 30, 2023 · Take a look at our labeled heart diagrams (see below) to get an overview of all of the parts of the heart. Once you’re feeling confident, you can test yourself using the unlabeled diagrams of the parts of the heart below. Labeled heart diagram showing the heart from anterior.
Learn all the parts of the human heart by memorizing this free printable human heart diagram. Includes labeled and unlabeled versions.
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OBJECTIVES. Identify chambers and valves of the heart. Explain circulation through heart and coronary anatomy. Identify grafts used for CABG.