Respiration and Circulation

What is the main function of the respiratory system?

• to absorb nutrients from food
• to provide oxygen and remove carbon dioxide from the body
• to make red blood cells

What are the main organs of the respiratory system?

• Muscles
• Bones
• Lungs

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

• alveoli
• veins
• mouth

Tags

NGSS.HS-LS2-5

Which of the following is the correct sequence of the passages through which air travels during inhalation?

• pharynx --> trachea --> lungs --> bronchi --> alveoli
• larynx --> pharynx --> bronchi --> lungs --> alveoli
• larynx --> pharynx --> trachea --> bronchi --> alveoli
• pharynx --> larynx --> trachea --> bronchi --> alveoli

Blood leaving the lungs is...

• oxygen rich 
• oxygen poor

What is circulated by the blood?

• waste
• oxygen
• nutrients
• all of the above 

White blood cells are known as 

• erthrocytes
• leukocytes
• thrombocytes

Platelets are a part of blood that help in the:

• formation of hemoglobin

• formation of a clot

• release of anitbodies

• absorption of amino acids

What is the function of the bronchi?

• Transport air from nose to lungs
• Transport air from trachea to lungs
• Transport air from lungs to alveoli
• Transport air from alveoli to blood

What is tube that is also known as your wind pipe?

• esophogus
• bronchi
• trachea
• alveoli