respiratory system

• the organs of the respiratory system include:

  nose

  pharynx

  larynx

  trachea

  bronchi

  lungs
• these are small air sacs where gas exchange occurs

  alveoli
• refers to the internal part of the nose

  nasal cavity
• the nasal cavity is a space that is divided by a portion called the nasal septum
• it traps foreign particles that enter the nose

  nasal hair
• it is the only visible part of the respiratory system

  nose
• refer to the openings through which air enters. it is also called the nostrils

  external nares
• refers to the area near the nose that contains nasal hair

  anterior nasal
• these play a central role in detection of odors

  olfactory receptors
• cavity in the nose area that contains mucus glands

  nasal cavity
• these are found in the walls of the nasal cavity. they prevent inhaled particles from entering the lungs

  paired conchae
• a five-inch muscular passageway for food and air. it is commonly referred to as the throat.

  pharynx
• 3 regions of the pharynx

  nasopharynx

  oropharynx

  laryngopharynx
• region of the pharynx that receives air from the nasal cavity

  nasopharynx
• region of the pharynx. it is the common passageway for food and air and leads to a digestive tract (esophagus)

  oropharynx
• region of the pharynx that leads to another respiratory tract

  laryngopharynx
• these are clusters of tissue that protect the body from foreign invaders

  tonsils
• also referred to as the voice box. they play a role in speech and is formed by cartilages

  larynx
• it is the largest cartilage which forms a protuberance commonly known as the "addams apple"

  shield-shaped thyroid
• it branches off the trachea - right and left

  bronchi
• bronchus that is shorter, wider, and straighter

  right bronchus
• referred to as the windpipe. it is a four-inch tract that is located midchest

  trachea
• primary organs of the respiratory system. 2 sacks that extend off the bronchi

  lungs
• refers to the upper portion of each lung

  apex
• refers to the inferior border of the lungs

  base
• the right lung is shorter and wider
• the number of lobes the RIGHT lung has

  3
• the number of lobes the LEFT lung has

  2