HUMAN ANATOMY PHYSIOLOGY Thanks LABORATORY Tissues INTRODUCT

LABORATORY Tissues INTRODUCTION The study of tissues, called histology, is microscopic anatomy. Individual tissues consist of cells and of lular material that have a particular function. organs the body are formed by two or more The st of is important because many organic dysfunc tions of the human body are diagnosed at the tissue level specimens are sent to pathology la so that accurate assessment of the health of the tissue, and consequently the health of the individual, can be mad Stem cells are unspecialized, or undifferentiated cells that have great potential for regeneration. Stem cells E may divide to produce more stem cells, or they may differ. entiate to become other cells of the body, such as those in neural tissue or blood. Developing embryos contain many stem cells (human embryonic stem cells), which dif ferentiate into embryonic tissues. Adult stem cells repair old or damaged tissue or regenerate new cells, such as blood cells. Therapeutic uses of stem cells may hold cures for diseases such as Parkinson\'s disease), neural injury, or tissue repair b uru i atients. Stem cells are currently used to regenerate e blood cells in patients who have m been treated for leukemia. As you study the tissues in this exercise remember that they all arose from stem cells. There are four main tissue types found in the human body: epithelial tissue, connective tissue, muscular tissue, and nervous tissue. These topics are discussed in chapter 5, \"Histology,\" in the Saladin text. In this ex- ercise you examine numerous slides of organ and begin an introduction to histology. In later exercises you revisit histology as you examine various organ systems.

Solution

Histology is the study of tissues. Cell is basic unit which forms tissue which ultimately form organ in the body. Through histology many diseases can be studied and analyzed because diseases initiates from cell.Stem cells are pluripoten in nature.They may be grown in different types of tissue this properties of stem cell is useful in treatment of various diseases such as Parkinson\'s disease, neural injury and in regeneration of white blood cell in cancer patient ,in leukemia.

There are four kind of tissue namely epithelial ,connective ,muscular and nervous tissues respectively.