Respiratory System

Respiratory System

Reinforcement

Class VI

What we will learn today:

What is respiratory system

Organs involved in respiration and their function

How gases are exchanged during breathing

Activity # 1

Let's play a game

https://www.turtlediary.com/game/respiratory-system-labeling.html   

Respiratory System

• Group of tissues and organs that allows you to breathe. 

• The organs that help to get oxygen from air to your blood and get rid of carbon dioxide, makeup the respiratory system.

Larynx/ Voice box

• Routes air and food into proper channels

• Plays a role in speech 

Trachea

Wind pipe

Extends from Larynx to the middle of thoracic cavity where it divides into bronchi 

Bronchus

• plural: bronchi

• Formed by division of trachea.

• Subdivide into smaller and smaller branches, bronchioles

Alveoli

• Alveolus – individual sac

• Bunches of tiny air sacs inside the lungs.

• When you breath in, they fill with air.

• Very thin walls which permit the exchange of gases (oxygen and carbon dioxide)

• Exchange oxygen and carbon dioxide in the blood stream.

Lungs

• Soft spongy elastic organs with smooth shiny surface.

• Consists of bronchioles, alveoli and an extensive network of blood vessels and the capillaries.

• Occupy most of thoracic cavity.

Diaphragm

Sheet of skeletal muscles

Dome shaped muscular partition

Works with lungs to inhale and exhale air.

Multiple Choice

Which is not a job of the respiratory system?

• taking in oxygen

• taking in carbon dioxide

• moisten air

• transport glucose

Multiple Choice

Which blood cells carry the oxygen to the rest of the body?

• Red Blood Cells
• White Blood Cells
• Blue Blood Cells
• Yellow Blood Cells

Multiple Choice

Which is known as the voice box?

• pharynx

• larynx

• trachea

• bronchi

Multiple Choice

When you exhale, the diaphragm

• moves upwards

• moves downwards

• flattens

• none of the above

Multiple Choice

Where is carbon dioxide and oxygen exchanged at capillaries?

• trachea

• larynx

• alveoli

• bronchi

Multiple Choice

The "windpipe" is known as the

• alveoli

• esophagus

• trachea

• bronchi

Multiple Choice

Which system shares the pharynx with the respiratory system?

• circulatory

• digestive

• excretory

• skeletal

Multiple Choice

Where does air go after the pharynx during inhalation?

• nose

• trachea

• bronchi

• alveoli

Multiple Choice

Which 2 substances are exchanged in the Respiratory System?

• oxygen and nitrogen

• carbon dioxide and oxygen

• oxygen and glucose

• glucose and carbon dioxide

Multiple Choice

What does the respiratory system release?

• oxygen

• glucose

• carbon dioxide