process of human respiration answer in long way
Answers
Rᴇsᴘɪʀᴀᴛɪᴏɴ ɪs ᴛʜᴇ ᴘʀᴏᴄᴇss ʙʏ ᴡʜɪᴄʜ ᴇɴᴇʀɢʏ ɪs ʀᴇʟᴇᴀsᴇᴅ ғʀᴏᴍ ғᴏᴏᴅ ɪɴ ᴏᴜʀ ʙᴏᴅʏ. Tʜᴇ ғᴜɴᴄᴛɪᴏɴ ᴏғ ʀᴇsᴘɪʀᴀᴛᴏʀʏ sʏsᴛᴇᴍ ɪs ᴛᴏ ʙʀᴇᴀᴛʜᴇ ɪɴ ᴏxʏɢᴇɴ ғᴏʀ ʀᴇsᴘɪʀᴀᴛɪᴏɴ ᴘʀᴏᴅᴜᴄɪɴɢ ᴇɴᴇʀɢʏ ғʀᴏᴍ ғᴏᴏᴅ, ᴀɴᴅ ᴛᴏ ʙʀᴇᴀᴛʜᴇ ᴏᴜᴛ ᴄᴀʀʙᴏɴ ᴅɪᴏxɪᴅᴇ. Wɪᴛʜ ᴛʜᴇ ʜᴇʟᴘ ᴏғ ʟᴜɴɢs ɢᴀsᴇs ᴀʀᴇ ᴇxᴄʜᴀɴɢᴇᴅ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ ʙʟᴏᴏᴅ ᴀɴᴅ ᴛʜᴇ ᴀɪʀ.
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Answer:
Respiration: The process of releasing energy by the oxidation of food is known as respiration. The process of respiration involves intake of oxygenated air into the cells for breaking the food and releasing energy.
Mechanism of respiration:
i. Air is drawn into the body through the nostrils.
ii. The air from the nasal cavity passes to the pharynx, which leads to the trachea, through a slit called glottis.
iii. The trachea runs down the neck and divides into two bronchi, which lead into the lungs and further divide into smaller bronchioles. The smallest bronchioles terminate into alveoli.
iv. The walls of the alveoli are thin and covered by blood capillaries to facilitate the exchange of gases in the lungs.
v. In the alveoli, the exchange of gases takes place, CO 2
from the blood is replaced with O 2
an CO 2 is removed out of the body.
vi. In humans, for the process of respiration, air is drawn into the lungs by the process of breathing.
When an individual inhales, the diaphragm moves down, and the chest cavity expands and the oxygen rich air is drawn into the lungs. When the individual exhales, the diaphragm relaxes and the chest cavity moves back to its relaxed position and the carbon dioxide rich air is expelled out of the body.
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