Write about lungs present in a human body
Answers
The lungs are a pair of spongy, air-filled organs located on either side of the chest (thorax). The trachea (windpipe) conducts inhaled air into the lungs through its tubular branches, called bronchi. The bronchi then divide into smaller and smaller branches (bronchioles), finally becoming microscopic.The bronchioles eventually end in clusters of microscopic air sacs called alveoli. In the alveoli, oxygen from the air is absorbed into the blood. Carbon dioxide, a waste product of metabolism, travels from the blood to the alveoli, where it can be exhaled. Between the alveoli is a thin layer of cells called the interstitium, which contains blood vessels and cells that help support the alveoli.The lungs are covered by a thin tissue layer called the pleura. The same kind of thin tissue lines the inside of the chest cavity -- also called pleura. A thin layer of fluid acts as a lubricant allowing the lungs to slip smoothly as they expand and contract with each breath.
plz me me as brainliest
ANSWER :
LUNGS :
Lungs are helpful for humans to
send oxygen to the blood. Lungs take oxygen from outside of the body and sends to our whole body by removing carbondioxide and filtering only oxygen.
Generally , we have a pair of lungs i.e. two lungs in our chest cavity on the either side of our heart.
Lungs are spongy and elastic and are enclosed by two membranes called PLEURA.
Space between the two membranes of the pleura are filled with fluid and Pleura protects lungs from getting injured.
Left lung is smaller than right lung and right lung is larger than left lung. Lung has thousands of alveoli which are supplied with blood capillaries.
Pulmonary artery bring deoxegenated blood from heart to lungs . After entering the lung , this artery divides into several arterioles and capillaries and supplies deoxegenated blood to alveoli. Gas exchange occurs in the Alveoli. Oxygenated blood is sent to heart by pulmonary vein.