hyaline

hyaline

 [hi´ah-līn]

glassy; pellucid.

hyaline membrane disease a disorder of newborns, typically preterm, characterized by the formation of a hyalinlike membrane lining the terminal respiratory passages. Newborns with this disease do not secrete adequate quantities of surfactant, which is secreted by the epithelium of the alveoli and normally decreases the surface tension of the fluids lining the alveoli and bronchioles so that air can pass through the fluids and into the alveoli. If the surface tension is not kept low by adequate supplies of surfactant, the alveoli cannot fill with air and there is partial or complete collapse of the lung (atelectasis). Thus the newborn with hyaline membrane disease suffers from respiratory insufficiency with severe dyspnea and cyanosis. The condition is treated with surfactant instillation, oxygen, and positive pressure. See also respiratory distress syndrome of the newborn.

hy·a·line

(hī'ă-lin, -lēn),

Relating to transparent or colorless hyphae or other fungal structures.

Synonym(s): hyaloid

[G. hyalos, glass]

hyaline

/hy·a·line/ (hi´ah-līn) glassy and translucent.

hyaline

(hī′ə-lĭn, -līn′)

n.

Variant of hyalin.

hyaline

[hī′əlin]

Etymology: Gk, hyalos, glass

pertaining to substances that are clear or glasslike.

hy·a·line

(hī'ă-lēn)

Transparent or colorless.
Synonym(s): hyaloid.

[G. hyalos, glass]

hyaline

Translucent or glassy, as in hyaline cartilage. Of amorphous texture.

hyaline

transparent.

hyaline

glassy, translucent appearance

hyaline

glassy; pellucid.

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hyaline body

see apoptotic body.

hyaline cartilage

see hyaline cartilage.

hyaline cast

see urinary cast.

hyaline degeneration

see hyaline degeneration.

hyaline globules

composed of fibrin degradation products these contribute to the formation of microthrombi. Called also shock bodies.

hyaline membrane

composed of fibrin and cell debris, this membrane lines the alveoli when there has been severe damage to the alveolar epithelium. See also hyaline membrane (3).

hyaline membrane disease

a disorder of newborn animals, most commonly foals, characterized by the formation of a hyalin-like membrane lining the terminal respiratory passages. Neonates with this disease do not secrete adequate quantities of surfactant, which is secreted by type II alveolar epithelial cells, and decreases the surface tension of the fluids lining the alveoli and bronchioles. When the surface tension is kept low, air can pass through the fluids and into the alveoli. If the surface tension is not decreased by adequate supplies of surfactant, the alveoli cannot fill with air and there is partial or complete collapse of the lung (atelectasis). Thus the foal with hyaline membrane disease suffers from respiratory embarrassment with severe dyspnea. See also neonatal maladjustment syndrome.

Patient discussion about hyaline

Q. HYALINE MEMBRANE DISEASE in pre-mature infants;what are the causes of it in pregnant women?

A. the cause of Hyaline Membrane disease is pre-mature birth. while the fetus develop, about in the 29th week a substance called surfactant is created in the lungs. this substance's function is to change the surface tension of the fluid in the lungs- therefore decreasing it's force. the surface tension tends to shrink the lungs and can cause the lungs to collapse. so a premature baby wouldn't be able to breath properly.