respiratory system

The air sacs that are covered with capillaries where gas exchange takes place

• bronchi
• lungs
• oxygen
• alveoli

Flap of tissue that covers the opening to the windpipe during swallowing

• Pharynx

• Trachea

• Epiglottis

• bronchioles

What is the site of gas exchange?

• alveoli

• nose

• lung

• bronchi

The only externally visible part of the respiratory system

• Eyes

• Nose

• Pharynx

• Larynx

Which part of the Respiratory System plays a major role in speech? Also known as the voice box.

• nose

• pharynx

• larynx

• trachea

The two narrower tubes branching from the trachea that leads into the lungs

• nose

• bronchi

• lungs

• alveoli

A chamber behind the nose and mouth that leads to the trachea and is part of the digestive system and respiratory system.

• pharynx

• trachea

• epiglottis

• larynx

The large muscle that contracts and relaxes and moves air in and out of the lungs.

• epiglottis

• alveoli

• diaphragm

• trachea

An air tube that is held open by C-shaped rings of cartilage. Also known as the windpipe.

• pharynx

• trachea

• nose

• alveoli

The flap of tissue at the bottom of the pharynx which keeps food and liquids out of the rest of your respiratory system.

• pharynx

• larynx

• trachea

• epiglottis