Applied Science Tissue Structure & Function Prep Questions And Answers Already Passed 2024.

Tissue - Answer A collection of differentiated cells that perform a specific function Epithelial Tissue - Answer Found lining organs and surfaces. They are divided into different types: Squamous epithelial, Columnar epithelial, Endothelium Squamous Epithelial Tissue - Answer Lining tissue that is one cell thick, specialised squamous cells form a thin smooth layer that makes them ideal for rapid diffusion. Eg. Alveoli in the lungs Damage to Epithelium Cells - Answer Caused by smoking that causes inflammation and scarring. Alveoli walls become thicker due to scarring, sacs lose their natural elasticity and this causes; breathlessness, coughing and phlegm. Ciliated Cells - Answer Cells with tiny hair like structures Ciliated Columnar Epithelial Tissue - Answer Made up of ciliated cells. Line the trachea to protect lungs. Cilia sweep pathogens away from longs. Goblet cells secrete mucus to trap unwanted particles Endothelial Tissue - Answer Layer of flattened cells, one layer thick. Found in the lining of the heart, blood vessels. This provides a short diffusion pathway for products of digestion and blood plasma and tissue fluid. Damage to Endothelium - Answer Carbon monoxide and high blood pressure cause damage to the lining of arteries. White blood cells repair and encourage growth of smooth muscles and deposition of fatty substances. This is called atherosclerosis. These build up, forming a plaque in the lumen, reducing the size and restricting blood flow. Lumen - Answer Space inside a structure like a blood vessel