Respiratory System

The process of breathing in and out

• condensation
• respiration
• carbon dioxide
• oxygen

What bones protects the lungs?

• femur
• clavicle
• ribs
• pelvis

How does the respiratory system exchange gases between the lungs and the environment? 

• CO₂ is inhaled from the environment and O₂ is exhaled by the lungs
• O₂ is inhaled from the environment and CO₂ is exhaled by the lungs 
• CO₂ is inhaled from the environment and CO₂ is exhaled by the lungs 
• O₂ is inhaled from the environment and O₂ is exhaled by the lungs 

All of the following are functions of the respiratory system EXCEPT

• Inhale to take in oxygen
• Exhale to release carbon dioxide
• Create sound with vocal chords
• Create blood cells

Structure where respiratory gas exchange occurs

• capillaries
• alveoli
• trachea
• bronchi

Blood vessel that covers the alveoli that send oxygen to the blood and carbon dioxide to be exhaled

• Inferior Vena Cava
• Aorta
• Pulmonary Artery
• Capillaries

Component or molecule in blood that carries O₂ throughout the body

• Red Blood Cells
• Plasma
• Hemoglobin
• Platelets

Airway that connects the larynx to the bronchi

• pharynx
• nasal cavity
• secondary bronchi
• trachea

Capillaries deliver O₂ to - 

• the lungs
• the kidneys
• body cells
• the lungs

How does the respiratory system relate to homeostasis? 

• Increase in heart rate when more oxygen is needed 
• Produces sweat to cool the body when it is hot 
• Releases waste to prevent the body from being poisoned
• Decrease in heart rate when more oxygen is needed