Charles dickens wrote Oliver Twist in 1837, during the Victorian era of England, he was born in Landport, a suburb of Portsea, on February 7, 1812. He was their first child of eight siblings. John Dickens, Charles's father, was not good with handling the family's money.
Trachea. The trachea is easily identified by its large C-shaped hyaline cartilage rings. These rings prevent the collapse of the tracheal mucosa during inspiration. The anterior portion of the ring is cartilage, while the posterior gap is closed by the trachealis muscle, which is composed of smooth muscle fibers.he trachea is easily identified by its large C-shaped hyaline cartilage rings. These rings prevent the collapse of the tracheal mucosa during inspiration.
2- Some of mesenchymal cells become chondroblasts and lay down hyaline cartilage. 3- Some of mesenchymal cells on the surface of the cartilage form a membrane called perichondrium. vascular and contain osteogenic cells. 4- The cells of the cartilage at first small and irregularly arranged.n this tissue, chondrocytes are located within a threadlike network of elastic fibers within the extracellular matrix. A perichondrium is present. Elastic cartilage possesses greater flexibility than hyaline cartilage and maintains the shape of certain structures.