Besides lubrication, the pericardium serves to hold the heart in position and maintain a hollow space for the heart to expand into when it is full. 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. The walls and lining of the pericardial cavity are a special membrane known as the pericardium. The heart sits within a fluid-filled cavity called the pericardial cavity. Because the heart points to the left, about 2/3 of the heart’s mass is found on the left side of the body and the other 1/3 is on the right. The base of the heart is located along the body’s midline with the apex pointing toward the left side. The inferior tip of the heart, known as the apex, rests just superior to the diaphragm. Pulmonary arteries and veins, and the vena cava. On its superior end, the base of the heart is attached to the aorta, The heart is located in the thoracic cavity medial to the lungs and posterior to the sternum. It takes in deoxygenated blood through the veins and delivers it to the lungs for oxygenation before pumping it into the various arteries (which provide oxygen and nutrients to body tissues by transporting the blood throughout the body). See the Labelling the heart activity for additional support in using this interactive.The heart is a muscular organ about the size of a closed fist that functions as the body’s circulatory pump. Selecting or hovering over a box will highlight each area in the diagram.įor optimal viewing of this interactive, view at your screen’s default zoom setting (100%) and with your browser window view maximised. Use Reset All to practise again from the start. When you are happy with your selection, use the Check answers button to check them. If you want to check your answers, use the Reset Incorrect button. If you want to redo an answer, click on the box and the answer will go back to the top so you can move it to another box.
Drag and drop the text labels onto the boxes next to the heart diagram. In this interactive, you can label parts of the human heart.
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