Connective tissues 1. Structural peculiarities and classification 2. Loose connective tissue a. cells b. fibers 3. Dense connective tissue 4. Adipose tissue.

Slides:



Advertisements
Similar presentations
Connective Tissue.
Advertisements

Histology Project NAME_________ Period ________.
Chapter 4 - Tissues.
Connective Tissue Slides. Connective Tissues Adipose Elastic Cartilage Elastic Cartilage 2 Adipose 2 Blood Blood 2 Dense Regular Connective Tissue Dense.
Connective tissue Structure Function.
It connects between the different types of tissues and organs, carrying their blood and nerve supply. It is derived mainly from the mesoderm. It has connective.
CONNECTIVE TISSUE Connective tissue is responsible for providing structural support for the tissues and organs of the body. Connective tissue is composed.
4 Tissue: The Living Fabric Part B. Modes of Secretion  Merocrine – products are secreted by exocytosis (e.g., pancreas, sweat, and salivary glands)
Organization of Tissue Connective Tissue. Definition of Connective Tissue Used to connect…. Examples include basement membrane, bone, fat and blood Uses.
Classification of Tissues
Connective Tissue Fayez A. Elmabhouh Department of Biology.
CT. Connective Tissue Is... Cells Trichrome: Blue = Collagen Fibroblasts.
Connective Tissue 9/14/2009. #29 Small Intestine.
Connective Tissue. 1. General characteristics Features: 1. Small number cells and a large amount of matrix 2. No polarity and filled with blood and vessels.
Connective 1.Loose (areolar, adipose, reticular) 2. Dense (dense irregular, white fibrous) 3. Cartilage (hyaline, elastic, fibrocartilage) 4. Bone 5. Blood.
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Connective Tissue  Found throughout the body; most abundant and widely distributed.
Skin and Its Appendages. melanocyte L/M: lies between basal cells, with thin and long processes which present amongst with thin and long.
CONNECTIVE TISSUE The Major Structural Constituents of The Body.
DEVELOPMENT OF CONNECTIVE TISSUE Mesenchyme Loose Connective Tissue Mesenchymal Cells Fibroblasts Fibers.
SECTION 4-3 Connective Tissues
Connective Tissues. General Components Connective Tissues General Components – Specialized cells.
Four basic types of tissue  Epithelium  Connective tissue Connective tissue proper (examples: fat tissue, fibrous tissue of ligaments) Cartilage Bone.
Dr Abukakr H Mossa Anatomy instructor MBBS, 22-25/9/2011 Histology lab Connective tissue.
Connective Tissue Found everywhere in the body. Most abundant and widely distributed. Never exposed to the outside environment.
بسم الله الرحمن الرحيم. CONNECTIVE TISSUE ( C.T. ) Objectives: By the end of this lecture, the student should be able to: 1- Enumerate the general characteristics.
CONNECTIVE TISSUE Department of histology, cytology and embryology 2013 medical students Kharkov National Medical University.
Connective Tissue.
Connective Tissues.
Connective Tissue Slides. Adipose Tissue nucleus.
TISSUES CH. 4: THE FABRIC OF LIFE. TISSUE TYPES Epithelial tissue Covers Connective tissue Supports Muscle tissue Moves Nervous tissue Controls.
Tissues 1. Tissues are:  Group of cells similar in structure an function  Tissues are organized into organs  Histology = study of tissues The four.
CONNECTIVE TISSUE. Origin of connective tissue cells.
Physiology Behrouz Mahmoudi Connective Tissue 1.
LAB OUTLINE Lab will consist of 2 sections 1.Section 1 – Tissues (2 ½ weeks) 2.Section 2 – Bone + Muscle (6 ½ weeks) 2 lab practicals – practical end of.
Connective Tissue.
Connective Tissue.
Connective Tissue.
LAB. EXERCISE NO. 4 DR. ANSARI CONNECTIVE TISSUE PRELAB.4. BY PROF. DR.ANSARI 1 Sunday, November 22, 2015.
Review: Epithelial Tissue 1 “There are 2 basic kinds of epithelial tissues.” What could that mean? You are looking at epithelial cells from the intestine.
Connective tissue (1) 1.Loose connective tissue (No.4, No.1 )
Connective Tissue, Specialized Tissue and Repair
Specialized Cells Extracellular protein fibers Ground substance=fluid
Connective Tissue Chapter 4 (cont.). I. General Characteristics A. Three components: 1. Specialized cells 2. Extracellular protein fibers 3. Ground substance.
Essentials of light microscopy
CONNECTIVE TISSUE ( C.T. ) Objectives: By the end of this lecture, the student should be able to: 1.Enumerate the general characteristics of C.T. 2.Classify.
Connective tissue TYPES: 1-CT. proper. 2.Specialized CT (cartilage, bone and blood).
CONNECTIVE TISSUE. Connective Tissue Most abundant and widely distributed Types –Connective tissue proper –Cartilage –Blood –Bone.
D. Connective tissues 1. General features a. Most abundant tissue in the body b. Has three basic elements: cells, ground substances, and fibers c. Do.
Connective tissue.
A&P TISSUE QUIZ #2 CONNECTIVE. 1.List 3 functions of connective tissue A. Support B. protection C. insulation D. Transportation E. hold things together.
Tissues II Ch. 4. Connective Tissue Matrix Extracellular substances in which connective tissue cells are imbedded. – Support, strength, elasticity Hyaluronic.
Connective Tissue includes things like bone, fat, & blood. All connective tissues include: 1. specialized cells 2.extracellular protein fibers } matrix.
Modes of Secretion 1. Merocrine – secretion by exocytosis (pancreas, sweat, and salivary glands) 2. Holocrine – secretion by rupture of cells (sebaceous.
153 Connective Tissues Connective tissue proper and Cartilage -our second tissue type- Text readings: chapter 5.
Adipose Tissue (Loose Connective Tissue)
CONNECTIVE TISSUE Second lecture By Dr. Wahda A. M. Kharofa
CONNECTIVE TISSUES 1 - MESENCHYMAL CONNECTIVE TISSUE - MUCOUS CONNECTIVE TISSUE - LOOSE CONNECTIVE TISSUE - DENSE CONNECTIVE TISSUE - ELASTIC CONNECTIVE.
Connective tissue The cells; are two types
Connective Tissue Found throughout the body; most abundant and widely distributed in primary tissues Connective tissue proper Cartilage Bone Blood.
CONNECTIVE TISSUE abundant and widely distributed
Ch. 4 Part 3 Connective tissues.
Chapter 3 Connective tissue
Connective Tissue Features Cells far apart with matrix between Matrix
List 3 functions of connective tissue A. Support B. protection C
CONNECTIVE TISSUE Dr Iram Tassaduq. CONNECTIVE TISSUE Dr Iram Tassaduq.
Biology lab 8 Connective tissue part-2 assistant lecturer Farah Essa.
Skin and Its Appendages
Connective Tissue.
Connective Tissue Slides
Advanced Biology Connective Tissue.
Presentation transcript:

Connective tissues 1. Structural peculiarities and classification 2. Loose connective tissue a. cells b. fibers 3. Dense connective tissue 4. Adipose tissue 5. Reticular tissue 6. Mucous tissue 7. Pigmental tissue

Structural peculiarities 1. Intercellular substance well developed 2. Different cells (principal, … and temporary) 3. Vessels Functions 1.Trophic 2.Protective (mechanical, immune) 3.Supportive 4.Plastic (adaptation, regeneration) 5.Morphogenetic (capsules, trabecules, regulation…)

Classification Proper connective tissues 1.Fibrous CT: 1. Loose 2. Dense ( regular, irregular ) 2.Special: 1. Adipose 2. Reticular 3. Mucous 4. Pigmental Skeletal connective tissues 1.Cartilages (hyaline, elastic, fibrous) 2.Bones: 1. Fibrous 2. Lamellar: compact and spongy)

Loose connective tissue

GROUPS OF CELLS A. Differon – obligatory cells 1. Stem cell 2. Hemistem cell 3. Fibroblasts immature and mature 4. Fibrocyte, myofibroblast, fibroclast B. Unobligatory cells - histiocytes, basophils, plasma cells, lymphocytes, adipocytes C. Temporary cells - neutrophils, eosinophils…

Section of an inflamed intestinal lamina propria

Fibroblast and fibrocyte

Fibroblasts in dense connective tissue

Macrophages=histiocytes Originate in red bone marrow Present everywhere Macrophagic system (Mechnikow) Protective functions 1.Engulfing and destruction 2.Decontamination in contact 3.Information transmit to immune cells 4.Stimulation of other protective mechanisms

Macrophages and eosiniphils

Mast cell ( basophil from blood) =labrocyte=Erlich cell

Mast cell

Plasma cells in connective tissue

Plasma cell ( B-lymphocyte)

Plasma cell

Fibers ( collagen, elastic and reticular )

Collagen fiber

Elastic fiber

Dense irregular connective tissue Loose connective tissue

Types of adipocytes

White and brown adipose tissue

Brown adipocyte Nerve ending nucleus liposome mitochondria GA

Reticular tissue ( reticular cells, reticular fibers ) in hematopoietic organs

Embryonal Connective Tissue—Gelatinous or Mucous Tissue 1e 2m5y 6al 4a 3v

. Wharton’s jelly from a mature human umbilical cord contains connective tissue cells (fibroblasts, fibrocytes) and a homogeneous gelatinous or gel-like ground substance, which holds the collagen fibers which run in all directions. The prevailing ground substances predominantly contains nonsulfatized glycosaminoglycans

Pigmental tissue melanocyte (melanin producing cell)

Melanogenesis 1.Tyrosinase is synthesized in the rough endoplasmic reticulum 2. Tyrosinase is accumulated in vesicles of the Golgi complex 3. The free vesicles are now called melanosomes. 4. Melanin synthesis begins in the stage II melanosomes, where melanin is accumulated 5. Stage III melanosomes. 6. III melanosome loses its tyrosinase activity and becomes a melanin granule. 7. Melanin granules migrate to the tips of the melanocyte’s processes and are then transferred to the keratinocytes of the malpighian layer.

Section of the stratum spinosum Melanin protects the DNA from the UV radiation of the sun.