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10 wrz 2021 · It has three functions: Temporarily store food. Contract and relax to mix and break down food. Produce enzymes and other specialized cells to digest food. How does the stomach work with the rest of the GI tract? Each part of your GI tract breaks down food and liquid and carries it through your body.
There are four main regions in the stomach: the cardia, fundus, body, and pylorus (Figure 23.4.1). The cardia (or cardiac region) is the point where the esophagus connects to the stomach and through which food passes into the stomach.
How does the respiratory system protect itself from potentially harmful substances in the air? Explain how the rate of breathing is controlled. Why does the respiratory system need the cardiovascular system to help it perform its main function of gas exchange?
Gas exchange occurs in the respiratory zone. The conducting zone delivers air to and from the respiratory zone. The major functions of the conducting zone are to provide a route for incoming and outgoing air, remove debris and pathogens from the incoming air, and warm and humidify the incoming air.
29 kwi 2024 · The major function of the respiratory system is to supply the body with oxygen and to dispose of carbon dioxide. To do this, at least four distinct events, collectively called respiration, must occur.
Functionally, the respiratory system can be divided into a conducting zone and a respiratory zone. The conducting zone of the respiratory system includes the organs and structures not directly involved in gas exchange. The gas exchange occurs in the respiratory zone.
There are four main regions in the stomach: the cardia, fundus, body, and pylorus (Figure 1). The cardia (or cardiac region) is the point where the esophagus connects to the stomach and through which food passes into the stomach. Located inferior to the diaphragm, above and to the left of the cardia, is the dome-shaped fundus.
