RESPIRATORY SYSTEM

The ______ is the major organ of the Respiratoty System.

• heart

• kidneys

• skin

• lungs

When we inhale our chest __________.

• contracts

• expands

• relaxes

• both A and C

The process of exchanging oxygen and carbon dioxide in our body is called ______.

• circulation

• transpiration

• respiration

• excretion

Which of the following organ in NOT part of Upper Respiratory Tract?

• nasal cavity

• nose

• alveoli

• pharynx

It filters incoming air to filter larger foreign material

and moistens and warms incoming air

• Upper Respiratory Tract

• Lower Respiratory Tract

It warms and moistens air that produce sticky mucus to trap dust, pollens and other particles that were not trapped by nasal hairs.

• mouth

• nasal cavity

• epiglottis

• bronchioles

Tiny, thin-walled, grapelike clusters at the end of each bronchiole where carbon dioxide and oxygen exchange take place.

• bronchi

• trachea

• alveoli

• larynx

What organ is missing in the inhalation process?

• bronchi

• trachea

• alveoli

• larynx

The organ as the third (3rd) station of carbon-dioxide when leaving the body.

• bronchi

• bronchioles

• trachea

• larynx

A leaf-shaped flap of cartilage that seal off the windpipe during eating, so that food is not accidentally inhaled.

• mouth

• larynx

• epiglottis

• alveoli