respiratory system

• Aerobic

  With oxygen.
• Anaerobic

  Without oxygen.
• Bronchi

  The plural of 'bronchus'. The bronchi are the two major air tubes in the lungs.
• Diaphragm

  A large sheet of muscle that separates the lungs from the abdominal cavity.
• Exhale

  Breathe air out.
• Exhaled

  Breathed out.
• Gas exchange

  Oxygen passes through the capillary wall and into the tissues; carbon dioxide passes from the tissues into the blood.
• Inhale


  To breathe air in.
• Inhaled


  Breathe air in.
• Intercostal muscles


  Muscles between the ribs which raise the ribcage by contracting and lower it by relaxing.
• Vital Capacity


  The maximum amount of air that can be forcibly inhaled and exhaled in one cycle.
• Tidal Volume


  Amount of air breathed in or out at rest
• Total Lung Capacity


  The total volume of air in your lungs after your biggest breath in.
• Trachea


  The windpipe
• Alveoli


  Tiny air sacs in the lungs at the end of the bronchioles
• Diffusion


  The process of gaseous exchange at the alveoli. O2 in, CO2 out
• Diffusion: CO2 comes from ?? in the ?? and diffuses into the ?? in the ?? to be breathed out

  Diffusion: CO2 comes from the blood in the capillaries, and diffuses into the alveoli in the lungs to be breathed out
• Diffusion: O2 comes from ?? in the ?? and diffuses into the ?? in the ?? to be breathed out

  Diffusion: O2 comes from the alveoli in the lungs and diffuses into the blood in the capillaries to be breathed out