The main structure, which distinguish the eukaryotic cells and the prokaryotic cells are the membrane bound organelles.
The eukaryotic cells are divided by the internal membrane. The internal membranes form the outer covering of the organelles. The organelles such as mitochondria, nucleus, Golgi apparatus, endoplasmic reticulum etc are absent in the eukaryotic cells.
Answer:
It is important that he human trachea is reinforced with cartilaginous rings to keep the passage open as pressure keeps fluctuating during the process of breathing.
Explanation:
The trachea is reinforced with cartilaginous rings as it doesn't allow the trachea to collapse in our day to day lifestyle. It also keeps the air way passage open in spite of the continuous pressure changes during breathing.
The rings are not complete posteriorly to provide another advantage, that is it allows the esophagus to expand anteriorly ( inside the body) when we swallow food.
Intrapleural pressure is
Negative during expiration.
Intrapleural pressure is the air pressure in the pleural cavity
and also exists between visceral and parietal pleurae. This pressure
majorly depends on ventilation phase, the volume of the intrapleural cavity and
atmospheric pressure. During expiration, the Intrapleural pressure in the pleural cavity becomes
less negative which is commonly known as negative pressure.
Abdominal Thrusts or commonly referred to as the "Heimlich Maneuver". It is known as a method of aiding upper airway obstructions or "choking" for short. Upper airway obstruction can be caused by different foreign objects such as food. The Heimlich Maneuver was named after Dr. Henry Heimlich, who first described the maneuver in 1974.
The Trachea
is your answer
hope this helps
