structure of human lungs:
In this article we will discuss about structure of human lungs :
The human lungs are a pair of large, spongy organs optimized for gas exchange between our blood and the air. The lungs provide us with that vital oxygen while also removing carbon dioxide before it can reach hazardous levels. Becuse our bodies require oxygen in order to survive.The lungs also provide us with the air we need in order to speak, laugh at jokes, and sing.
The human lungs are a pair of large, spongy organs optimized for gas exchange between our blood and the air. The lungs provide us with that vital oxygen while also removing carbon dioxide before it can reach hazardous levels. Becuse our bodies require oxygen in order to survive.The lungs also provide us with the air we need in order to speak, laugh at jokes, and sing.
Size:
Lungs are not the same size in a person. The right lung is a little wider than the left lung, but it is also shorter. A man’s lungs can hold more air than a woman’s. At rest, a man’s lungs can hold around 750 cubic centimeters (about 1.5 pints) of air while a woman’s can hold around 285 to 393 cc (0.6 to 0.8 pints) of air, According to York university, the right lung is shorter because it has to make room for the liver, which is right beneath it. The left lung is narrower because it must make room for the heart.
Right lung:
The lobes and segments are more in the right lung compare to the left. It is divided into three lobes, an upper, middle, and a lower, by two fissures, one oblique and one horizontal.
The upper horizontal fissure,divides the upper from the middle lobe. It starts in the lower oblique fissure near the posterior border of the lung, and, running horizontally forward, cuts the anterior border on a level with the sternal end of the fourth costal cartilage.
The lower, oblique fissure divides the lower from the middle and upper lobes, and is closely aligned with the oblique fissure in the left lung.
Left lung
The lobes and segments are less in the left lung compare to the right. The left lung is divided into two lobes, an upper and a lower, by the oblique fissure, which extends from the costal to the mediastinal surface of the lung both above and below the hilum. The left lung, unlike the right, does not have a middle lobe, though it does have a homologous feature, a projection of the upper lobe termed the "lingula". The word "lingula" means "little tongue". The lingula on the left serves as an anatomic parallel to the right middle lobe, with both areas being predisposed to similar infections and anatomic complications.
Lungs are not the same size in a person. The right lung is a little wider than the left lung, but it is also shorter. A man’s lungs can hold more air than a woman’s. At rest, a man’s lungs can hold around 750 cubic centimeters (about 1.5 pints) of air while a woman’s can hold around 285 to 393 cc (0.6 to 0.8 pints) of air, According to York university, the right lung is shorter because it has to make room for the liver, which is right beneath it. The left lung is narrower because it must make room for the heart.
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| Human lungs |
Right lung:
The lobes and segments are more in the right lung compare to the left. It is divided into three lobes, an upper, middle, and a lower, by two fissures, one oblique and one horizontal.
The upper horizontal fissure,divides the upper from the middle lobe. It starts in the lower oblique fissure near the posterior border of the lung, and, running horizontally forward, cuts the anterior border on a level with the sternal end of the fourth costal cartilage.
The lower, oblique fissure divides the lower from the middle and upper lobes, and is closely aligned with the oblique fissure in the left lung.
Left lung
The lobes and segments are less in the left lung compare to the right. The left lung is divided into two lobes, an upper and a lower, by the oblique fissure, which extends from the costal to the mediastinal surface of the lung both above and below the hilum. The left lung, unlike the right, does not have a middle lobe, though it does have a homologous feature, a projection of the upper lobe termed the "lingula". The word "lingula" means "little tongue". The lingula on the left serves as an anatomic parallel to the right middle lobe, with both areas being predisposed to similar infections and anatomic complications.