Respiratory System Quiz

What is the primary function of the respiratory system?

• Digesting food

• Exchanging respiratory gases between the blood and external environment

• Producing hormones

• Filtering waste from the blood

How does the respiratory system work with the cardiovascular system?

• By digesting nutrients

• By exchanging gases and transporting them through the blood

• By producing red blood cells

• By filtering toxins from the blood

Why do cells of the human body require a constant supply of oxygen?

• To produce energy through cellular respiration

• To maintain body temperature

• To synthesize proteins

• To store fat

What must be removed from the body as a waste product of cellular respiration?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Which of the following is NOT one of the three major parts of the respiratory system?

• Airway

• Lungs

• Heart

• Muscles of the Respiratory System

Which part of the upper respiratory tract is also known as the voice box?

• Nasal cavity

• Pharynx

• Larynx

• Trachea

In what order does air pass through the upper respiratory tract?

• Larynx, pharynx, nasal cavity

• Nasal cavity, pharynx, larynx

• Pharynx, nasal cavity, larynx

• Nasal cavity, larynx, pharynx

What is the nasal cavity lined with?

• Smooth muscle

• Ciliated mucosa

• Cartilage

• Bone

What is the function of the network of thin-walled veins in the nasal cavity?

• To filter dust particles

• To warm passing air

• To produce mucus

• To support the nasal structure

What is the primary function of mucus in the ciliated mucosa?

• To absorb nutrients

• To trap dust, mold, and other contaminants

• To produce hormones

• To transport oxygen