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The carina is a cartilaginous ridge separating the left and right main bronchi that is formed by the inferior-ward and posterior-ward prolongation of the inferior-most tracheal cartilage. [2] The carina occurs at the lower end of the trachea - usually at the level of the 4th to 5th thoracic vertebra.
Keel (bird anatomy), or carina, an extension of the sternum in some birds Carina of trachea , the point at which the trachea branches to form the two mainstem bronchi Carinae, in dinosaur anatomy , enameled ridges on the cutting edges of the teeth
The carina of the trachea is located at the level of the sternal angle and the fifth thoracic vertebra (at rest). The right main bronchus is wider, shorter, and more vertical than the left main bronchus, [ 3 ] its mean length is 1.09 cm. [ 4 ] It enters the root of the right lung at approximately the fifth thoracic vertebra.
The dictionary refers to "Anatomy, which treats the Body, and Psychology, which treats of the Soul." [13] Ψ , the first letter of the Greek word psyche from which the term psychology is derived, is commonly associated with the field of psychology.
Hyaline cartilage has fewer cells than elastic cartilage; there is more intercellular space. Hyaline cartilage is found in the nose, ears, trachea, parts of the larynx, and smaller respiratory tubes. Fibrous cartilage has the fewest cells so it has the most intercellular space. Fibrous cartilage is found in the spine and the menisci.
The cricoid cartilage is the only laryngeal cartilage to form a complete circle around the airway. It is smaller yet thicker and tougher than the thyroid cartilage above. [1] It articulates superiorly [citation needed] with the thyroid cartilage, and the paired arytenoid cartilage. Inferiorly, the trachea attaches onto it. [1]
Tracheotomy (/ ˌ t r eɪ k i ˈ ɒ t ə m i /, UK also / ˌ t r æ k i-/), or tracheostomy, is a surgical airway management procedure which consists of making an incision on the front of the neck to open a direct airway to the trachea.
However, we need to consider orthographic transparency. Within opaque languages, the AoA can differ depending on the level of imageability (i.e. how imageable an item is). If the item has high imageability, the AoA effect is more likely to be small or non-existent, whereas if the item has low imageability, the AoA effect is more likely to be large.