Describe the pathway of oxygen getting from the air into the blood in the human body

diaphragm flattens and the chest wall moves up and out to decrease the pressure in the thorax. Inspiration occurs bringing air from the atmosphere into the mouth/nose and down the trachea, into the bronchi, bronchioles then the alveoli. The concentration of oxygen in the blood is lower than in the alveoli so it diffuses across the alveolar epithelium and the capillary epithelium into the arterioles. 

Answered by Isabel C. Biology tutor

9045 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Describe a biochemical test that could be used to determine the presence of triglycerides in a sample of food.


How are blood glucose levels controlled in the body?


Compare the structure and properties of phospholipids and triglycerides


Why does putting honey on a cut kill the bacteria within it?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences