Respiratory System

The organ system that helps you breathe is

• circulatory system

• respiratory system

• digestive system

• nervous system

Microscopic air sacs in the lungs are called__________________.

• bronchi

• alveoli

• adenoid

• thorax

The windpipe branches into two tubes called_________________

• esophagus

• bronchi

• alveoli

• epiglottis

The main organs of the respiratory system are the_________________

• lungs

• nasal passages

• tonsils

• pharnyx

Air enters the body through your mouth and ____________

• nasal cavity

• lungs

• bronchi

The waste product of respiration is_______________

• oxygen

• carbon dioxide

• hydrogen

What is the dome-shaped muscle that works with your lungs?

• diaphragm

• epiglottis

• larnyx

• trachea

What is the name given to the "empty" space in between the lungs?

• lung space

• cardiac notch

• heart gap

• lung notch

Inflammation of the membranes that cover the lungs is known as?

• meningitis

• pneumonia

• pleurisy

• bronchitis

What is the small flap of tissue called that covers the air-only passage when we swallow?

• epiglottis

• larynx

• aveoli

• Bronchioles