Question

The heart is a muscular organ in most animals, which pumps blood through the blood vessels of the circulatory system.[1] The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.[2] In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest. [3] In humans, other mammals, and birds, the heart is divided into four chambers: Heart upper left and right atria and lower left and right ventricles. [4][5] Commonly the right atrium and ventricle are referred together as the right heart and their left counterparts as the left heart. [6] Fish, in contrast, have two chambers, an atrium and a ventricle, while reptiles have three chambers. [5] In a healthy heart blood flows one way through the heart due to heart valves, which prevent backflow.[3] 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. [7] The human heart Details System Circulatory Artery Aorta, al pulmonary [ trunk and right and left pulmonary. हाउ वी कैन एक्सप्लेन दिस इन हिंदी ​

Answer 1

Answer:

Muscular Organ

Explanation:

Answer 2

Answer:

Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules.