Your assignment is just a click away

We have the best writers

We guarantee you plagiarism free, well formatted, grad A+ papers!

(solved) The Pulmonary System

(solved) The Pulmonary System

The Pulmonary System


Upper and lower pulmonary structures, bronchial/systemic circulation, and gas exchange at the lungs and tissue cell levels comprise the pulmonary system. These anatomical structures collaborate to achieve two primary goals: oxygen delivery and carbon dioxide removal (, 2017 & Tortora & Derrickson, 2014).

The nose and pharynx are examples of upper structures. The pharynx comprises three parts: the nasopharynx, oropharynx, and laryngopharynx. These structures filter, humidify, and warm the outside air while equalizing ear pressure (, 2017 & Tortora & Derrickson, 2014).

The lower structures are the larynx, trachea, carina, bronchi, bronchioles, and alveoli. The primary function of these structures is to transport oxygen and carbon dioxide from the alveoli, where gas exchange occurs. Would you believe that the lungs contain approximately 300 million alveoli, which, if opened and laid out flat, would cover 900 square feet, the size of an apartment!

Except for the area around the mediastinal space, the lungs encircle the entire thoracic cavity. The mediastinal space is occupied by the heart, major blood vessels, bronchi, and esophagus, among other organs. Tortora and Derrickson (2014) and (2017)

The lungs are responsible for two primary functions: ventilation and diffusion.
• Ventilation refers to air exchange between the atmosphere and the alveoli.
• Diffusion: the exchange of oxygen and carbon dioxide across the respiratory membrane from one concentration to another.
Tortora and Derrickson (2014) and (2017)


The right lung is divided into three lobes and accounts for approximately 55% of lung activity.
The left lung is divided into two lobes and accounts for approximately 45% of lung activity (, 2017; Tortora & Derrickson, 2014).

Pulmonary circulation is distinct because veins rather than arteries transport oxygenated blood. The pulmonary artery receives deoxygenated blood from the heart and returns oxygenated blood via the pulmonary vein (, 2017 & Tortora & Derrickson, 2014).

Have you ever wondered why the oxygen saturation in the left atrium and left ventricle is not 100%? The answer is found in bronchial circulation, where deoxygenated blood is removed by both bronchial and pulmonary veins. Because of the mixing of oxygenated and unoxygenated blood in the pulmonary vein, the oxygen saturation of blood on the left side of the heart is never 100% (, 2017; Tortora & Derrickson, 2014).

The diaphragm contracts and moves downward, forcing air into the lungs during the inhalation phase of respiration. This movement accounts for 70% of tidal volume. The movement of the external and internal intercostal muscles, abdominals, and accessory muscles in the neck contributes to the remaining 30% of tidal volume (, 2017 & Tortora & Derrickson, 2014).

The Pulmonary System

The Pulmonary System


The Pulmonary System

Part  1 compare the pathophysiology of asthma and COPD.

  1. How are they similar?
  2. How are they different?

Part 2

How does the shadow health lab modules help students learn about the pulmonary system

Our Service Charter

1. Professional & Expert Writers: Nursing Solved only hires the best. Our writers are specially selected and recruited, after which they undergo further training to perfect their skills for specialization purposes. Moreover, our writers are holders of masters and Ph.D. degrees. They have impressive academic records, besides being native English speakers.

2. Top Quality Papers: Our customers are always guaranteed of papers that exceed their expectations. All our writers have +5 years of experience. This implies that all papers are written by individuals who are experts in their fields. In addition, the quality team reviews all the papers before sending them to the customers.

3. Plagiarism-Free Papers: All papers provided by Nursing Solved are written from scratch. Appropriate referencing and citation of key information are followed. Plagiarism checkers are used by the Quality assurance team and our editors just to double-check that there are no instances of plagiarism.

4. Timely Delivery: Time wasted is equivalent to a failed dedication and commitment. Nursing Solved is known for timely delivery of any pending customer orders. Customers are well informed of the progress of their papers to ensure they keep track of what the writer is providing before the final draft is sent for grading.

5. Affordable Prices: Our prices are fairly structured to fit in all groups. Any customer willing to place their assignments with us can do so at very affordable prices. In addition, our customers enjoy regular discounts and bonuses.

6. 24/7 Customer Support: At Nursing Solved we have put in place a team of experts who answer to all customer inquiries promptly. The best part is the ever-availability of the team. Customers can make inquiries anytime.