3. It is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. *
1 point
Respiration
Diffusion
Circulation
Gas Exchange
Answers
Answer:
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. ... Gas exchange allows the body to replenish the oxygen and eliminate the carbon dioxide.
Answer:
The correct answer is respiration
Explanation:
Our lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (through inspiration or inhalation) and eliminate carbon dioxide (called expiration, or exhalation).
The exchange of oxygen and carbon dioxide is known as respiration.
The respiratory system involves the
- nasal,
- mouth,
- throat,
- voice box,
- windpipe, and
- lungs.
Air enters to the respiratory system through the nose or mouth. If it enters the nostrils (also known as the nares), it warms and humidifies the air. Cilia are tiny hairs that protect the nasal passages and other areas of the respiratory system by filtering away dust and other particles that enter the nose through inhaled air.
The two airway openings (the nasal cavity and the mouth) come together at the pharynx, or throat, at the rear of the nose and mouth. Because it transports both food and air, the pharynx is part of both the digestive and breathing systems.
- Our bodies' cells require oxygen to survive. Carbon dioxide(Co2) is produced in our bodies when cells perform their functions.
- The lungs and respiratory system allow oxygen from the air to enter the body while expelling carbon dioxide from the air breathed out.
- When you inhale, the diaphragm descends into the abdomen, while the rib muscles pull the ribs upward and outward.
- This causes the chest cavity to expand and pulls air into the lungs via the nose or mouth.
- Exhalation causes the diaphragm to move higher and the chest wall muscles to relax, causing the chest cavity to shrink and air to exit the respiratory system through the nose or mouth.
- Air fills a huge amount of the millions of alveoli every few seconds with each inhale. The method by which oxygen moves from the alveoli to the blood via the capillaries (small blood vessels that border the alveolar walls) is known as diffusion.
- Once in circulation, hemoglobin in red blood cells absorbs oxygen. This oxygen-rich blood then returns to the heart, where it is pumped through the arteries to oxygen-depleted tissues throughout the body.
- Oxygen is released from hemoglobin and transported into cells via the small capillaries of the bodily tissues. Carbon dioxide is produced by the cells as they perform their functions and travels into the capillaries, where the majority of it dissolves in the plasma of the blood.
- Carbon dioxide(CO2)-rich blood subsequently returns to the heart through the veins. This blood is propelled from the heart to the lungs, where carbon dioxide enters and is released via the alveoli.
Read here more-
Explain the mechanism of carbon dioxide transport from tissue to the lungs by red blood cells for
https://brainly.in/question/8618428
Chamber from where oxygenated blood from lungs is collected
https://brainly.in/question/367041
#SPJ2