Metaplasia and dysplasia: Video, Causes, & Meaning | Osmosis

Metaplasia: Definition, Symptoms & Examples

Cervical cancer - Symptoms and causes

USMLE High-Yield Questions on Instagram: "Mandem’s been brushing his nostrils daily 😭🪥 Bro said “minty fresh airways” and cooked his nasal epithelium. ⸻ ✅ Answer: D) Squamous metaplasia Explanation: Chronic chemical irritation (menthol, detergents, alkaline agents in toothpaste) causes the normal ciliated pseudostratified columnar respiratory epithelium to adapt by converting into stratified squamous epithelium. This offers protection from injury but sacrifices cilia and mucociliary clearance,

The Veterinary world on Instagram: "Hypovitaminosis A is a very common nutritional disorder in pet birds, especially budgerigars maintained on a seed-only diet. Seeds are deficient in Vitamin A, leading to progressive epithelial damage and reduced immunity. Pathogenesis: Vitamin A deficiency causes squamous metaplasia of epithelial tissues, resulting in thickening and blockage of glandular ducts (lacrimal, salivary, respiratory). This predisposes the bird to secondary bacterial and fungal infect