Circulatory/Respiratory Systems

The two larger types of blood vessels are:

• heart and lungs
• arteries and heart
• arteries and veins
• veins and heart

maintain a stable internal environment 

• homeostasis
• respiration

What are the main organs of the respiratory system?

• muscles
• lungs
• nose and mouth
• bronchi

What is the main bone structure that protects the lungs

• Vertebrae
• Rib cage
• Skull
• Pelvis

What is the main function of the heart ? 

• The heart circulates blood and oxygen throughout the body.
  
• The heart is the control centers for all body activities.
• The heart gets rid of the wastes in your body produced by homeostasis. 
• The heart adds oxygen to the blood

As your physical activity ____________, your heart rate ___________ and your breathing rate _______________

• decreases, increases, stays the same

• increases, increases, increases

• increases, decreases, increases

• decreases, stays the same, increases

Which describes a task performed by the circulatory system?

• creating red blood cells
• sending messages to the brain
• transporting waste materials
• producing energy from food

What is the main organ in the circulatory system?

• vein
• lung
• heart
• aorta 

In which system of the human body does the heart belong?

• Nervous
• Skeletal
• Cardiovascular
• Digestive

Which body system is shown here?

• circulatory system

• respiratory system