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I am not sure but I believe it's because the baby has no need to breathe inside the mother's womb.
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∙ 13y ago
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What internal system is the last system to develop in the fetus?
digestive and respiratory
How do the circulatory system and the respiratory system begin to develop?
Diseases of the circulatory and respiratory systems begin to develop due to disorders of the heart and lungs.
What Does SARS stand for and what part of the body does it effect?
Severe Acute Respiratory Syndrome it effects the respiratory system and I would assume the digestive system because you develop diarheea
How does the respiratory system develop in a tadpole?
Well, a tadpole, devolopes its lungs when the lungs start to grow.
Which organ system is the last to become fully functional prior to birth?
Lungs and respiratory system
What is the name for respiratory system?
The respiratory system is the system that handles breathing.
Which trimester is it when the respiratory system becomes mature?
Your respiratory system becomes mature in last few weeks of the gestation. Premature babies get problem in respiration. They do not have surfactant in there respiratory system. You have yo give corticosteroid shots to mother, if you plan to deliver her prematurely.
How does whooping cough affect your respiratory system?
The Respiratory System
Which body system contains the trachea?
The trachea is the airway in the respiratory system.
What is the origin of respiratory system?
Me and your mother had sex last night it was the best
What body system is the larynx a part of?
The larynx belongs to the respiratory system.
Do hookworms have a respiratory system?
no, they do not have a respiratory system
