Lungs Anatomy : The Gross Anatomy of Respiratory System

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Lungs Anatomy : The Gross Anatomy of Respiratory System

Lungs anatomy can be divided into two main parts, basically. They are the airway anatomy and the lungs anatomy. Airway anatomy is still divided into two segments such as the superior and inferior airway. Each segment has different main functions. When we are talking about lungs anatomy, you will know the lung parenchyma. The function of this thing is carrying the conduction system. It also involves the exchange of gas in the alveoli level.

Lungs Anatomy : The Gross Anatomy of Respiratory System

Lungs Anatomy : The Gross Anatomy of Respiratory System

In this article, I will give some explanation about gross anatomy of the respiratory system.

Trachea

Trachea is some kind of fibromuscular and cartilaginous tubes. The diameter of this thing is ranging from 13 mm up to 25 mm in male’s body. Meanwhile, it starts from 10 mm up to 21 mm in female’s body. Trachea has wall with four different layers called adventitia, cartilage, sub-mucosa, and mucosa. The wall of posterior trachea is supported by smooth muscle with thin band on it.

Bronchi

Before the oxygen is carried by the blood, it passes the airways. The airways are divided by the dichotomus branching that consists of about 23 generation. It starts from the trachea and ends on the alveoli.

Bronchi are also composed by the fibromuscular and cartilaginous elements. But the distinction of these things is clearer in the trachea rather than in the bronchi, especially if you view it from the distal airways.

Lungs

Human has two lungs; the right and left lungs and they are symmetrical. Both of them are divided into more than one lobe. The lungs are wrapped by the visceral pleura. Visceral pleura is contiguous with the other pleura called parietal pleura since it is the reflection of the mediastinum’s lateral surfaces. In this stage, you will also see the fissure which is the invagination forms of visceral pleura on the both lungs. The pleura also creates the pulmonary ligament which contains double layers of the pleura. It extends along the mediastinum starting from the inferior part of pulmonary vein into the diaphragm.

Pulmonary vasculature

There is some sort of relation between the bronchial tree and the pulmonary vasculature’s anatomy. It is mainly composed by the pulmonary arteries and the veins. The right pulmonary artery goes through the posterior right to the aorta as well as the superior vena cava. Meanwhile, the left pulmonary shows the contrast activity since it is located at the anterior and a bit to the left from the main-stem bronchus.

Pulmonary lymphatic system

Lungs have the lymphatic drainage and it starts with the lymphatic vessels. They firstly drain into the intra-parenchymal lymphatic and the lymph nodes. Eventually, the lymphatic communicated with the system of venous. Some variants of lymphatic drainages, however, are so important to be considered in overall through the pulmonary neoplasms’ dissemination.

Well, these all above are the gross anatomy of the respiratory system. Even though it seems maze and difficult to imagine, those all are existed in your body. Knowing the anatomy of your body will make you more appreciative to your body and you know how the process of breathing through the lungs anatomy.

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