2.1 Breathing mechanism

Which of the following shows what happens to the chest cavity when air rushes into the lungs?

• decrease in volume

• deflates

• expands

• relaxes

Which of the following happens when you exhale?

• chest cavity expands

• your lumgs become smaller

• your chest cavity becomes smaller

• your lungs take in and give off oxygen

As you breath in and out when do your lungs expand?

• when air rushes in

• when air rushes out

• when your diaphragm expands

• when your chest cavity relaxes

How do you describe the condition of the diaphragm as one exhales?

• the diaphragm contracts

• the diaphragm relaxes

• the diaphragm goes down

• both a and c

What material in a lung model represents the diaphragm

• Y plastic tubes

• the plastic jar

• the plastic sheet

• 2 small plastic bags

Tags

NGSS.MS-ETS1-1

Which two muscles are responsible for BREATHING?

• The Diaphragm

• The Lungs

• The Heart

• The Intercostal Muscles

The main ORGAN responsible for breathing is:

• the Brain

• the Lungs

• the Liver

• the Kidneys

The trachea branches off into two:

• Alveoli

• Bronchus

• Bronchioles

What is another name for the windpipe?

• Lungs
• Trachea
• Larynx
• Esophagus

The Respiratory System is the body's:

• Breathing system
• Food processing system
• Blood transporting system
• System of nerves