Session Review

What are the tiny air sacs in the lungs where oxygen enters the blood and carbon dioxide leaves the blood through diffusion?

• Trachea

• Alveoli

• Bronchioles

• Lungs

What separates each atrium from the ventricle below it in the heart, ensuring one-way blood flow?

• Artery

• Valve

• Muscle Wall

• Vein

Which mode of transmission occurs when a person comes within 1 meter of an infected individual?

• Direct

• Indirect

• Airborne

• Physical Contact

Given the information on COVID-19 transmission, which health protocol is most critical in preventing the spread of the virus via respiratory droplets in a public setting?

• Washing hands frequently with soap and water.    

• Maintaining physical distance from others.

• Avoiding sharing utensils with others

• Running in place for 1 minute daily.

If a virus primarily affects the upper respiratory tract, which of the following symptoms would you least expect to be a primary symptom, based on the descriptions provided?

• Sneezing

• Runny Nose

• Difficulty breathing due to the fluid in the lungs

• Nasal congestion

During an infection, a person's body increases the production of cells that fight off foreign invaders. Which type of blood component is primarily responsible for this immune response?

• RBC

• WBC

• Blood Platelets

• Plasma

How does Emphysema primarily damage the respiratory system?

• By causing inflammation of the breathing passages.

• By damaging the alveoli of the lungs and breathing passages.

• By leading to a chronic allergic condition that narrows airways.

• By causing a viral infection of the upper respiratory tract.

A person runs in place for 1 minute and then counts their breaths. This activity is designed to compare breathing rates at rest to breathing rates after exercise. What concept is this activity directly applying?

• The function of the larynx

• The mechanism of diffusion

• The process of cellular respiration

• The body's physiological response to physical exertion

How many heart beats we produced in one day?

• 1,000

• 10,000

• 2.5 billion

• 35 million

Why is it important for the nostrils to have coarse hair coated with mucus?

• To trap large dust and dirt particles

• To allow for gas exchange

• To produce vocal sounds

• To warm the incoming air