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- The human heart consists of four chambers: The left side and the right side each have one atrium and one ventricle. Each of the upper chambers, the right atrium (plural = atria) and the left atrium, acts as a receiving chamber and contracts to push blood into the lower chambers, the right ventricle and the left ventricle.
openstax.org/books/anatomy-and-physiology-2e/pages/19-1-heart-anatomy
Inferior vena cava. Identify: receives blood from lower limbs and abdominal organs and empties into the posterior part of the right atrium of the heart. Pulmonary trunk. Identify:, the artery that carries venous blood from the right ventricle of the heart and divides into the right and left pulmonary arteries.
- Anatomy of the Heart Flashcards
Study with Quizlet and memorize flashcards containing terms...
- Anatomy of the Heart Flashcards
Study with Quizlet and memorize flashcards containing terms like Base of the Heart, Apex of the Heart, Coronary Sulcus and more.
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; Identify the veins and arteries of the coronary circulation system
- 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!)
- 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...
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 and coronary arteries. Free heart labeling quiz for medical students.
