Anatomy
What is the main organ of the respiratory system where gas exchange happens?
The lungs
What is the main job of the respiratory system?
to take in oxygen and remove carbon dioxide
Their lungs are smaller and hold less air
What chronic condition causes the airways to tighten, swell and produce mucus?
Asthma
What other body system works directly with the respiratory system to deliver oxygen?
The circulatory system!
What is the name of the muscle that helps control breathing by moving up and down
The diaphragm contracts to inhale and relaxes to exhale
Alveoli
During adolescence what happens to the lungs and diaphragm?
Lungs grow larger and the diaphragm gets stronger
What symptoms might someone with asthma experience during an attack?
Shortness of breath, wheezing and coughing
How do oxygen and carbon dioxide move between the lungs and the blood?
diffusion in the alveoli, oxygen moves into the blood and carbon dioxide moves out of the lungs
Name three structures that air passes through on its way from the nose to the lungs
Nasal cavity-Pharynx-Larynx-Trachea-Bronchi-Lungs
How does the respiratory system help regulate blood pH levels?
by controlling carbon dioxide levels in the oxygen
Why does breathing become more difficult as people age?
The lungs lose elasticity and muscles weaken over time
What secondary system is affected when asthma increases the heart rate?
The cardiovascular system!
Why is the respiratory system considered essential for maintaining homeostasis
is balances oxygen and carbon dioxide levels to keep the body's internal environment stable
How does asthma affect both the respiratory and cardiovascular system?
Asthma causes inflammation and narrowing of the always in the respiratory system, leading to lower oxygen levels. The cardiovascular system then must compensate for these low levels and increase heart rate