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  2. Respiratory tract - Wikipedia

    en.wikipedia.org/wiki/Respiratory_tract

    The right lung has three lobes – upper, middle, and lower (or superior, middle, and inferior), and the left lung has two – upper and lower (or superior and inferior), plus a small tongue-shaped portion of the upper lobe known as the lingula. Each lobe is further divided up into segments called bronchopulmonary segments. Each lung has a ...

  3. Lung - Wikipedia

    en.wikipedia.org/wiki/Lung

    The left lung is divided into two lobes, an upper and a lower lobe, by the oblique fissure, which extends from the costal to the mediastinal surface of the lung both above and below the hilum. [1] 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 ...

  4. Bronchus - Wikipedia

    en.wikipedia.org/wiki/Bronchus

    The left bronchus has no eparterial branch, and therefore it has been supposed by some that there is no upper lobe to the left lung, but that the so-called upper lobe corresponds to the middle lobe of the right lung. The left main bronchus divides into two secondary bronchi or lobar bronchi, to deliver air to the two lobes of the left lung ...

  5. Lobes of liver - Wikipedia

    en.wikipedia.org/wiki/Lobes_of_liver

    The right lobe is of a somewhat quadrilateral form. Its under and posterior surfaces being marked by three fossæ: the fossa for the portal vein, the fossa for the gall-bladder and the fossae for the inferior vena cava. These separate the right lobe into two smaller lobes on its left posterior part: the quadrate lobe and the caudate lobe.

  6. Quadrants and regions of abdomen - Wikipedia

    en.wikipedia.org/wiki/Quadrants_and_regions_of...

    The left lower quadrant includes the left iliac fossa and half of the flank. The equivalent in other animals is left posterior quadrant. The left upper quadrant extends from the umbilical plane to the left ribcage. This is the left anterior quadrant in other animals. The right upper quadrant extends from umbilical plane to the right ribcage.

  7. Lobe (anatomy) - Wikipedia

    en.wikipedia.org/wiki/Lobe_(anatomy)

    the occipital lobe; the temporal lobe; The three lobes of the human cerebellum. the flocculonodular lobe; the anterior lobe; the posterior lobe; The two lobes of the thymus; The two and three lobes of the lungs. Left lung: superior and inferior; Right lung: superior, middle, and inferior; The four lobes of the liver. Left lobe of liver; Right ...

  8. Bronchopulmonary segment - Wikipedia

    en.wikipedia.org/wiki/Bronchopulmonary_segment

    There are ten bronchopulmonary segments in the right lung: three in the superior lobe, two in the middle lobe, and five in the inferior lobe. Some of the segments may fuse in the left lung to form usually eight to nine segments (four to five in the upper lobe and four to five in the lower lobe.

  9. Liver - Wikipedia

    en.wikipedia.org/wiki/Liver

    Left lobe liver tumor. The liver is a vital organ and supports almost every other organ in the body. Because of its strategic location and multidimensional functions, the liver is prone to many diseases. [58] The bare area of the liver is a site that is vulnerable to the passing of infection from the abdominal cavity to the thoracic cavity.