What is Lingular bronchus?
Two of the tertiary bronchi, the superior lingular bronchus and the inferior lingular bronchus, carry air to the lingula. Upon reaching the lingula, each tertiary bronchus further divides into many bronchioles to deliver air to all of the tissues of the lung.
What is the lingula and where is it located?
Description. The left lung, unlike the right does not have a middle lobe. However the term lingula is used to denote a projection of the upper lobe of the left lung that serves as the homologue. This area of the left lobe – the lingula, means little tongue (in Latin) and is often referred to as the tongue in the lung.
What is the lingula part of the lung?
The term lingula refers to the tip or tongue-like projection of the upper lobe of the left lung but in general it is considered also to be the entire portion of this segment which is supplied by the first segmental bronchus that arises from the upper lobe bronchus.
What does Lingular mean?
: a tongue-shaped process or part: as. a : a ridge of bone in the angle between the body and the greater wing of the sphenoid. b : an elongated prominence of the superior vermis of the cerebellum. c : a dependent projection of the upper lobe of the left lung.
What is lingula function?
The lingula is not technically a lobe, but is the left lung equivalent of the right lung’s middle lobe. The hilium is the root of the lung and contains the structures involved in pulmonary circulation, as well as the pulmonary nerves and lymph vessels.
What is Lingular segment?
The two lingular segments are the most anterior of the segments in the left upper lobe lying below the apicoposterior and anterior segments and above the oblique fissure.
What attaches to the lingula?
The lingula of the mandible is a prominent bony ridge on the medial side of the mandible. It is next to the mandibular foramen. It gives attachment to the sphenomandibular ligament.
What structure attaches to the lingula?
What attaches at the lingula?
The lingula of the mandible (also known as Spix spine) is a triangular bony projection or ridge on the medial surface of the ramus of the mandible, immediately superior to the mandibular foramen. It provides attachment for the sphenomandibular ligament 1,2.
Why is the lingula not a lobe?
The lingula is not formally considered to be a lobe. It is a small, tongue-like projection of the left lung that is analogous to the middle lobe of the right lung. It contains superior and inferior bronchopulmonary segments.
What is pneumonia lingula?
Obscuration of the cardiac apex (i.e. silhouette sign) represents pathology in the lingula segment of the left upper lobe. In this setting airspace opacity with air bronchograms in the setting of the clinical presentation means this represents pneumonia.
What is the lingula mandible?
The lingula of the mandible is a tongue-shaped bony projection on the medial surface of the mandibular ramus that forms the medial boundary of the mandibular foramen.1 The lingula is a reliable anatomic landmark used to determine the position of the mandibular foramen.2 Due to the close proximity of the lingula to the …
What is attached to lingula?
What is lingula in mouth?
Where is the Stylomandibular ligament?
Stylomandibular ligament. The stylomandibular ligament (STML) arises from the styloid process of the temporal bone up to the posterior margin of the jaw or the jaw angle. It is considered a thickening of the deep cervical fascia (in particular of the parotid fascia). It serves to limit excessive protrusion of the jaw.
What is atelectasis in the lingula?
Abstract. Collapse of the left lower lobe is sometimes accompanied by linear atelectasis in the lingula. The lingular atelectasis may be more readily apparent than conventional signs of left lower collapse.
What is Subsegmental atelectasis in the lingula?
Linear atelectases may result in minor linear densities of varying thickness usually parallel to the diaphragm, most commonly at the lung bases or less mobile regions of the lungs (e.g. lingula). Other subsegmental atelectases present as linear or wedge-shaped densities and can affect any lung lobe.
What is Lingula of mandible?