love photos download rajpng
This image has format transparent PNG with resolution 1280x720नोटिस …… इस इमेज को यूट्यूब या वेबसाइट में यूज कर सकते हैं लेकिन एक शर्त है इस वेबसाइट का लिंक डिस्क्रिप्शन में डालना होगा नहीं तो कॉपीराइट आ सकता है
Heart PNG with transparent background you can download for free, just click on it and save.
love images wallpaper
The heart is a muscular organ in humans and other animals, which pumps blood through the blood vessels of the circulatory system. Blood provides the body with oxygen and nutrients, as well as assists in the removal of metabolic wastes. In humans, the heart is located between the lungs, in the middle compartment of the chest.
In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria; and lower left and right ventricles. Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. Fish, in contrast, have two chambers, an atrium, and a ventricle, while reptiles have three chambers. In a healthy heart, blood flows one way through the heart due to heart valves, which prevent backflow. The heart is enclosed in a protective sac, the pericardium, which also contains a small amount of fluid. The wall of the heart is made up of three layers: epicardium, myocardium, and endocardium.
The heart pumps blood with a rhythm determined by a group of pacemaking cells in the sinoatrial node. These generate a current that causes contraction of the heart, traveling through the atrioventricular node and along with the conduction system of the heart.