This portion will include activities such as exercises, games, Power Point presentations, and/or other lessons that show applications of the topic. You should print all materials used and take notes on anything you learn in this Directed Learning Activity. 1. In this exercise you will need to define, in your own words, all of the different rhetorical essay patterns. Cut and paste the following URL, and read the document.
Summary Information: Phagocytic Cells. Phagocytic Cells: Phagocytic cells are white blood cells and other types of cells that are a part of the immune system. Phagocytic cells have the ability to surround and destroy foreign substances in the body. This action, called phagocytosis, plays an important role in defending the body against harmful substances, such as bacteria, viruses, foreign bodies, and other micro-organisms that can cause diseases and abnormal conditions.
They ingest bacteria, foreign cells, and damaged and dead cells. (The process of a cell ingesting a microorganism, another cell, or cell fragments is called phagocytosis, and cells that ingest are called phagocytes.) Macrophages secrete substances that attract other white blood cells to the site of the infection.