T2: Human Body Systems & Homeostasis

The ___________ are the main organs of the respiratory system. 

• veins
  
• lungs
• arteries
• kidneys

The ____________________ is the body system that transports oxygen, nutrients, and waste through the body.  

• respiratory system 
• digestive system
• circulatory system 
• immune system

The ____________ is a muscular organ that pumps blood to the body through blood vessels. 

• vein 
• artery 
• heart
• kidney

The ______________________ is the body system that breaks food down so that it can be used by the body.  

• circulatory system 
• digestive system 
• respiratory system 
• skeletal system

What is the main function of the respiratory system?

• regulate the body's functions by secreting hormones
• protect the inner organs of the body from harm
• coordinate the actions of the body
• exchange carbon dioxide & oxygen with the environment

This system breaks down food we eat into nutrients that your body can absorb.

• skeletal

• muscular

• endocrine

• digestive

The system where lungs absorb oxygen and release carbon dioxide.

• respiratory

• reproductive

• immune

• nervous

Heart pumps blood through all of your blood vessels in this system.

• musculoskeletal

• circulatory

• digestive

• excretory

System where kidneys remove wastes from the blood and regulate your body's fluids.

• musculoskeletal

• digestive

• circulatory

• excretory

System that includes the brain, spinal cord, and nerves; receives and sends messages throughout your body.

• nervous

• immune

• excretory

• respiratory