Body systems: Breathing & Nervous system Flashcards
What is the function of the respiratory system?
The main function of the respiratory system is Gas exchange.
What is the difference between the composition of inhaled and exhaled air?
inhaled air has the same composition as normal air, but exhaled air contains less oxygen and more carbon dioxide.
What is the affect of exercise on breathing rate?
During exercise there is an increase in physical activity therefore the rate and depth of breathing increases.
How do the lungs keep clean?
Mucus is produced in the walls of the small airways to help keep your lungs clean and well lubricated. It is moved by tiny hairs called cilia that line your airways.
How does smoking affect the lungs?
Smoking inflames and irritates the lungs.
What is the Central nervous system (CNS)?
The brain and the spine.
What is the function of the nervous system?
To collect sensory input from the body and external environment. To process and interpret the sensory input. To respond appropriately to the sensory input.
What are the 3 main parts of the brain?
Cerebrum, Cerebellum, Medulla.
