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- The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and another layer, the endocardium, lines the inside. The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers.
Terms in this set (15) Superior Vena Cava. #1 Carries deoxygenated blood from the body. Aorta. #2 Artery that carries blood directly from the heart to the rest of the body. Pulmonary Trunk. #3 Carries blood from right ventricle to pulmonary arteries. Right Atrium. #4 pumps blood from vena cava into right ventricle.
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- Heart Anatomy Flashcards
Which chambers are composed of more cardiac muscle? Study...
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Which chambers are composed of more cardiac muscle? Study with Quizlet and memorize flashcards containing terms like Aorta, Superior Vena Cava, Right Atrium and more.
- 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!)
Describe the coverings, the surface anatomy and tissue layers of the heart; Describe the internal anatomy of the heart including the chambers and valves and relate the internal features to how it functions as a pump; Trace the coronary circulation and explain why this ciruclation is needed
- Lindsay M. Biga, Sierra Dawson, Amy Harwell, Robin Hopkins, Joel Kaufmann, Mike LeMaster, Philip Mat...
- 2019
- Pericardium
- Structure of The Heart Wall
- Chambers of The Heart
- Valves of The Heart
- Conduction System of The Heart
The heart sits within a fluid-filled cavity called the pericardial cavity. The walls and lining of the pericardial cavity are a special membrane known as the pericardium. Pericardium is a type of serous membrane that produces serous fluid to lubricate the heart and prevent friction between the ever beating heart and its surrounding organs. Besides ...
The heart wall is made of 3 layers: epicardium, myocardium and endocardium. 1. Epicardium. The epicardium is the outermost layer of the heart wall and is just another name for the visceral layer of the pericardium. Thus, the epicardium is a thin layer of serous membrane that helps to lubricate and protect the outside of the heart. Below the epicard...
The heart contains 4 chambers: the right atrium, left atrium, right ventricle, and left ventricle. The atria are smaller than the ventricles and have thinner, less muscular walls than the ventricles. The atria act as receiving chambers for blood, so they are connected to the veins that carry blood to the heart. The ventricles are the larger, strong...
The heart functions by pumping blood both to the lungs and to the systems of the body. To prevent blood from flowing backwards or "regurgitating" back into the heart, a system of one-way valves are present in the heart. The heart valves can be broken down into two types: atrioventricular and semilunar valves. 1. Atrioventricular valves. The atriove...
The heart is able to both set its own rhythm and to conduct the signals necessary to maintain and coordinate this rhythm throughout its structures. About 1% of the cardiac muscle cells in the heart are responsible for forming the conduction system that sets the pace for the rest of the cardiac muscle cells. The conduction system starts with the pac...
Describe the internal and external anatomy of the heart; Identify the tissue layers of the heart; Relate the structure of the heart to its function as a pump; Compare systemic circulation to pulmonary circulation; Trace the pathway of oxygenated and deoxygenated blood through the chambers of the heart
Oct 20, 2024 · Describe the internal and external anatomy of the heart Identify the tissue layers of the heart and pericardium Compare systemic circulation to pulmonary circulation
