Name the following. 1. The process of taking in air? 2. The process of giving out air? 3. A strong muscle below the lungs? 4. An organ which pumps blood to every cell? 5. An instrument used by doctors to listen to our heartbeat?
Answer (1)
The process of taking in air is called inhalation or inspiration . During inhalation, the diaphragm (a strong muscle below the lungs) contracts and moves downward, increasing the space in your chest cavity and allowing air to flow into your lungs.
The process of giving out air is known as exhalation or expiration . This process involves the diaphragm relaxing and moving upward, reducing the space in the chest cavity and pushing air out of the lungs.
A strong muscle below the lungs is called the diaphragm . It plays a crucial role in breathing by contracting and relaxing to change the volume of the thoracic cavity and move air in and out of the lungs.
An organ which pumps blood to every cell is the heart . The heart is a muscular organ located in the chest that beats continuously, pumping blood through the circulatory system to supply oxygen and nutrients and remove waste products from cells.
An instrument used by doctors to listen to our heartbeat is called a stethoscope . This medical instrument amplifies body sounds, allowing the doctor to hear the heartbeat, lung sounds, and other internal sounds clearly.
