Changes

==Respiratory System==

==Respiratory System==

Air is [[Ventilation - Anatomy & Physiology|inhaled]] and passes through the upper respiratory tract via the nares, [[Nasal cavity - Anatomy & Physiology|nasal cavity]],[[Pharynx - Anatomy & Physiology|Pharynx]], [[Larynx - Anatomy & Physiology|larynx]], [[Trachea - Anatomy & Physiology|trachea]] where it is  heated and moistened. It then passes to the lower respiratory tract ([[Bronchi and bronchioles - Anatomy & Physiology|bronchi, bronchioles]], [[Lungs - Anatomy & Physiology|alveoli]]) where oxygen diffuses across the alveolar wall and into the blood, forming oxyhaemoglobin.

Air is [[Ventilation - Anatomy & Physiology|inhaled]] and passes through the upper respiratory tract via the nares, [[Nasal cavity - Anatomy & Physiology|nasal cavity]],[[Pharynx - Anatomy & Physiology|Pharynx]], [[Larynx - Anatomy & Physiology|larynx]], [[Trachea - Anatomy & Physiology|trachea]] where it is  heated and moistened. It then passes to the lower respiratory tract traveling through the [[Bronchi and bronchioles - Anatomy & Physiology|bronchi, bronchioles]] and [[Lungs - Anatomy & Physiology|alveoli]] where oxygen diffuses across the alveolar wall and into the blood, forming oxyhaemoglobin.

===Lower Respiratory Tract===

===Lower Respiratory Tract===

 

[[Lungs - Anatomy & Physiology|Anatomy of the Lungs]]

[[Lungs - Anatomy & Physiology|Anatomy of the Lungs]]