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.
Hyaline cartilage is covered externally by a fibrous membrane, called the perichondrium, except at the articular ends of bones and also where it is found directly under the skin, i.e. ears and nose.This membrane contains vessels that provide the cartilage with nutrition.yaline cartilage exists on the ventral ends of ribs; in the larynx, trachea, and bronchi; and on the articular surface of bones.