tailieunhanh - Ebook Histology text and atlas: Part 2

(BQ) Part 2 book "Histology text and atlas" presents the following contents: Bone, nervous tissue, muscle tissue, circulatory system, lymphoid (immune) system, oral cavity, gastrointestinal tract, accessory glands of the gastrointestinal tract, respiratory system, urinary system, male reproductive system,. | Chapter 7 Bone 83 Formation of Primary Centre of Ossification Osteoprogenitor cells o perichondrium orm periosteal bud which consists o blood capillaries osteoprogenitor cells and osteoclasts Fig. . T e periosteal bud excavates through the bone collar and erodes the wall o primary areolae the primary areolae use and orm larger spaces known as secondary areolae Fig. . T e space gets flled with primitive bone marrow cells. Osteoblasts orm osteoid on the sur ace o the calcifed cartilage matrix and the osteoid gets calci-f ed orming trabeculae o spongy bone. Later the calcif ed cartilage matrix present in the core o the trabeculae is removed by osteoclasts giving rise to mature trabeculae o the spongy bone. T e central part o the cartilage model where these changes occur is now called the primary centre of ossif cation Fig. . Similar processes occur in the cartilage close to the sha t resulting in ormation o bone towards the epiphysis. Secondary Centres of Ossification A ter birth new centres o ossif cation secondary ossif cation centres appear in the ends o long bones Fig. . T e cartilage o the epiphyses undergoes the same sequence o events as in the diaphysis. In the secondary centre the cartilage growth and subsequent ossif cation spreads out in all directions Fig. . Entire cartilage is replaced by bone except in two regions at the ree end which remains as articular cartilage and between the epiphysis and the diaphysis orming the epiphyseal plate or epiphyseal cartilage. a Perichondrium Mature Calcified matrix chondrocytes surrounding the mature chondrocyte s b Figure Steps of endochondral ossifcation. a Longitudinal section of a growing hyaline cartilage. b As cartilage increases in size chondrocytes mature and enlarge towards the centre of the shaft. continued 84 Histology Text and Atlas Periosteum Periosteal bone collar Primary areolae Calcified matrix c Newly added cartilage Newly added cartilage New primary areolae Blood .

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• Histology text and atlas
• Nervous tissue
• Muscle tissue
• Gastrointestinal tract
• Respiratory system
• Urinary system
• Male reproductive system
• Tissue preparation for histological study
• Getting oriented to the sectional planes
• Epithelia and glands
• Connective tissue
• Plasma membrane
• Cell cytoplasm
• The cell nucleus
• Concept and classification
• Epithelial tissue
• Adipose tissue
• Lymphatic system
• Integumentary system
• Associated structures
• Color atlas and text of histology
• The cell
• Epithelium and glands
• Cartilage and bone
• Blood and hemopoiesis
• Muscle muscle
• Circulatory system
• Lymphoid tissue
• Endocrine system
• Digestive system
• Female reproductive system
• multimedia resource
• navigation structure
• Digital Histology
• tool for teaching
• Golgi
• secretory Vesicles
• Wheaters functional histology
• Cell structure  and function
• Cell cycle and replication
• Haematopoiesis and bone marrow
• Supporting connective tissues
• Epithelial tissues
• Circulatory  system
• Skeletal tissues
• Immune system
• Central nervous system
• Special sense organs
• Junqueiras basic histology
• Methodsof study
• The cytoplasm
• The nucleus
• Digestive tract
• The circulatory system
• The respiratory system
• The digestive tract
• The urinary system
• tài liệu sinh học
• giáo trình sinh học
• công nghệ sinh học
• kỹ năng sinh học
• Critical care obstetrics
• Clinical practice
• Ethical challenges
• Invasive hemodynamic
• Mechanical ventilation during pregnancy
• Pharmacologic agents
• Acute renal failure
• Obstetric hemorrhage
• Disseminated intravascular coagulation
• Sepsis in pregnancy