Respiratory system

• Respiratory System is also know as Human Breathing System - This organ system is responsible for taking in oxygen and expelling carbon dioxide.

  
• PARTS OF THE RESPIRATORY SYSTEM

  NOSE and MOUTH - The entrance of oxygen in our body.

  NASAL CAVITY or NASAL PASSAGEWAYS - The air passing this part is warm, damp and clean.

  PHARYNX - is our throat LARYNX - is our voicebox

  TRACHEA - It is also known as windpipe.It is an empty tube the serves as passageway of air into the lungs.

  LUNGS - The main organs of the RESPIRATORY SYSTEM.

  
• BRONCHI - The two branching tubes connect that the trachea to the lungs.

  
• BRONCHIOLES - These are the hairlike tubes that connect the alveoli.

  ALVEOLI - These are the airsacs that allow gas exchange in the lungs.

  
• What happens if we Breathe in and breathe out?

  When we inhale oxygen enters our body and if we exhale carbon dioxide exits our body
• Circulatory system is also known as the cardiovascular system
• Circulatory system - it is the life support structure that nourishes your cells. It functions with other body systems to deliver different materials in the body
• When we inhale ribs move out and chest space increases. And when we exhale ribs move in and chest space decreases
• What happens if we inhale?

  Ribs move out and chest space increases
• What happens if we exhale?

  Ribs move in and chest space decreases
• When we inhale diaphragm muscle contracts. When we exhale diaphragm relaxes