What is the significance of the two membranes which surround the lungs?  Between these membranes lies a cavity which is filled with fluid.  What is the purpose of these membranes and the fluid filled cavity?

Fill in the space with the appropriate word from the word-bank below; causing During inhalation, the diaphragm and intercostal muscles 36.... 37................ in the volume of the chest-cage. This creates 38............... pressure in the lungs and causes air to flow from 39................... During exhalation, the diaphragm and intercostal muscles 40................... causing 41.................. of the volume of the chest-cage. This creates 42................. pressure in the lungs and causes air to flow from 43................... ● Inside to outside ● ● ● ● ● Expansion Compression Relax Constrict Outside to inside

A small ridge of cartilage at the most inferior portion of the "windpipe" called the __________ now directs some air towards the left lung and some towards the right lung.                                                                                                                                                                                                                                                                                              The air will now travel through a series of tubes that become smaller and smaller as they repeatedly branch; these tubes, very similar in structure to the "windpipe", are called __________.                                                                                                                                                                                                                                                                                              Even tinier tubes continue branching; these tubes contain…

Smoking damages two parts of the respiratory system: the airways known as the [1] and small air sacs called the [2]. [3] in your airway helps capture debris (dust, smoke, pathogens) in the air you breathe, then structures called [4] sweep the [5] and debris out of your lungs. Cigarette smoke irritates the lining of your airway, causing it to [6]; this makes the diameter of your airway [7] and slows the movement of air. Smoke also slows the movement of [8]. Is a "smoker's cough" due to damage of alveoli or bronchial tubes? [9] Is a long-term smoker's difficulty breathing due to damage of alveoli or bronchial tubes? [10] [11] is a lung disease caused by damage to the alveoli.

Cigarette smoke irritates the lining of your airway, causing it to [6]; this makes the diameter of your airway [7] and slows the movement of air. Smoke also slows the movement of [8]. Is a "smoker's cough" due to damage of alveoli or bronchial tubes? [9] Is a long-term smoker's difficulty breathing due to damage of alveoli or bronchial tubes? [10] [11] is a lung disease caused by damage to the alveoli.

What cartilage in the larynx forms a complete ring and wraps around the larynx?

Asthma is a very common disease. It is characterized by widespread narrowing of the bronchioles and formation of mucus plugs, producing symptoms of wheezing, shortness of breath, and coughing, and is caused by the release of factors during an allergic response. Explain why the narrowing of bronchioles, rather than that of the larger bronchi, is the source of the airflow restriction, and why inhaling dilating agents can bring relief during an asthma attack.

Ms. X has smoked cigarettes for years and is having breathing difficulties. She has been diagnosed with emphysema. Describe specific structural changes you would expect to observe in Ms X’s respiratory system. How are air flow and gas exchange affected by these structural changes?

a.) What is the impact on internal respiration in your alveoli if the partial pressure of the oxygen gas in the air goes down? and the partial pressure of the carbon dioxide gas goes up?   b.) What would happen as a result of both of these happening?

All human systems have the concept involving the flow of a molecule through system structures. (a) Using a flowchart (word, with > symbols), illustrate the path of air during exhalation.  (b) Describe the muscular action of the diaphragm during exhalation.  I forgot explain and tell me why