Science Quiz 11C |Friday, March 29th|

The upper respiratory system consists of the

• ear, mouth, and esophagus

• lungs, bronchi, and diaphragm

• stomach, liver, and pancreas

• nose, throat and larynx

The lower respiratory system is from the ____ to the ____.

• esophagus to the stomach
• lungs to the heart
• bronchi to the diaphragm
• trachea to the lungs

The two tubes that branch off from the trachea are the

• trachea
• bronchi
• esophagus
• lungs

The trachea and bronchi are lined with _____ and ____.

• mucus and cilia

• gases and cilia

• mucus and gases

The ____ are two saclike organs that replace the carbon dioxide in your blood with oxygen.

• stomach
• lungs
• liver
• heart

The chest muscles and the ___ control the movement of the lungs.

• abdominal muscles
• rib cage
• spine
• diaphragm

Breathing is the exchange of gases called

• hydration

• vibration

• oxygen

• respiration

The sound caused by air that cannot move freely and causes parts of the mouth and throat to vibrate and hit together is a

• snore

• sneeze

• hiccup

• cough

Irritation to the lining of the airways causes air to be violently released through the nose is a

• snore

• sneeze

• hiccup

• cough

When the diaphragm muscle contracts quickly, causing short breaths of air and sudden closure of the epiglottis, a ____ occurs.

• snore

• sneeze

• hiccup

• cough