Human body Education

  INTRODUCTION  1. A bone is made up of several different tissues: bone or osseous tissue, cartilage, dense connective tissue,epithelium, adipose tissue, and nervous tissue.  2. The entire framework of bones and their cartilages constitutes the skeletal system FUNCTIONS OF BONE AND THE SKELETAL SYSTEM  1. The skeletal system functions in support, protection, movement, mineral homeostasis, blood cell production, and triglyceride storage.  STRUCTURE OF BONE  1. Parts of a typical long bone are the diaphysis (shaft), proximal and distal epiphyses (ends), metaphyses, articular cartilage, periosteum, medullary (marrow) cavity, and endosteum.   HISTOLOGY OF BONE TISSUE  1. Bone tissue consists of widely separated cells surrounded by large amounts of extracellular matrix.  2. The four principal types of cells in bone tissue are osteoprogenitor cells, osteoblasts (bone-building cells), osteocytes (maintain daily activity of bone), and osteoclasts (bone-destroying cells).  3. The extracellula

INTRODUCTION OF HUMAN BODY Detail study of human body is includes anotomy and physiology of human body and cellular composition. Anotomy is a study of structure and parts of each and every part of human body. Physiology is a study of functions of human body 1.1 Anatomy and Physiology Defined  1. Anatomy is the science of body structures and the relationships among structures; physiology is the science of body functions.  2. Dissection is the careful cutting apart of body structures to study their relationships.  3. Some branches of anatomy are embryology, developmental biology, cell biology, histology, gross anatomy, systemic anatomy, regional anatomy, surface anatomy, radiographic anatomy, and pathological anatomy (see Table 1.1).  4. Some branches of physiology are neurophysiology, endocrinology, cardiovascular physiology, immunol- ogy, respiratory physiology, renal physiology, exercise physiology, and pathophysiology (see Table 1.1). 1.2 Levels of Struct