Anatomy

• Anatomy

  • The right lung has three lobes, while the left lung has two.
• The diaphragm is the primary muscle responsible for controlling our breathing.
• • The pleural cavity, located between the two pleural membranes, is also known as the potential space, as it typically only contains pleural fluid.
• The parietal and visceral pleura are held together by pleural fluid, which acts as a lubricant and creates surface tension that keeps the two membranes together.
• Surface tension is the adhesive force that keeps the parietal and visceral pleura together, preventing them from detaching during the expansion of the lungs.
• When you inhale, your lungs will not collapse from the chest wall due to the surface tension between the pleura.
• Anatomical Anatomy

  • Refers to the structure itself
• ◦ Upper respiratory tract: Nasal cavity, pharynx, and larynx
• ◦ Lower respiratory tract: Trachea, bronchi, bronchioles, alveolar ducts, and alveoli
• Functional Anatomy

  • Divide the parts of the respiratory system based on its functions.

  ◦ Conducting zone: from nasal cavity to the terminal bronchioles

  • Allows the transport of air inside the body.

  ◦ Respiratory zone: respiratory bronchioles to the alveoli

  • Participates in gas exchange
• Conducting zone: from nasal cavity to the terminal bronchioles

  • Allows the transport of air inside the body.
• Respiratory zone: respiratory bronchioles to the alveoli

  • Participates in gas exchange