Respiratory System Basics

What is the process of respiration?

• Eating food and drinking water

• Inhaling oxygen and exhaling carbon dioxide

• Sleeping and waking up

• Exhaling oxygen and inhaling carbon dioxide

Which organs are involved in the respiratory system?

• heart

• stomach

• liver

• lungs, trachea, bronchi, diaphragm, alveoli

What is the main function of the lungs in the respiratory system?

• Digest food

• Regulate body temperature

• Facilitate gas exchange

• Produce hormones

Where does gas exchange take place in the respiratory system?

• Pharynx

• Bronchi

• Alveoli

• Trachea

What is the role of the diaphragm in the process of respiration?

• The diaphragm helps in expanding and contracting the lungs to facilitate breathing.

• The diaphragm assists in hearing sounds

• The diaphragm regulates body temperature

• The diaphragm helps in digesting food

How does oxygen enter the bloodstream during respiration?

• Filtration

• Diffusion

• Osmosis

• Active transport

What is the function of the trachea in the respiratory system?

• Stores oxygen in the respiratory system

• Filters blood in the respiratory system

• Regulates body temperature in the respiratory system

• Conducts air to and from the lungs

What are the tiny air sacs in the lungs where gas exchange occurs called?

• Bronchioles

• Alveoli

• Pleura

• Trachea

What is the name of the muscle that helps with breathing by expanding and contracting the chest cavity?

• quadriceps

• diaphragm

• abdomen

• biceps

What is the waste gas that is removed from the body during respiration?

• Carbon dioxide (CO2)

• Oxygen

• Hydrogen

• Nitrogen