tissue

tissue

1. Science Project Topic - Animal tissues

2. Flow chart of animal tissues…

3. Types of ANIMAL TISSUES … TYPES ORIGIN FUNCTIONS Epithelial Tissues : Ectoderm, Endoderm,Mesoderm . Secretion , Protection , Absorption etc.. Connective Tissues : Mesoderm . Support , Binding , Storage , Protection , Circulation . Muscular Tissues : Mesoderm . Locomotion and Movement . Nervous Tissues : Ectoderm . Control , Coordination and Conduction of impulse .

4. EPITHELIAL TISSUES …. Word epithelial is composed of two words Epi – upon , thelio – grows .[ Means- A tissue which grows upon another tissue is called EPITHELIAL] . Nature : It is the simplest tissue. It is the protective tissue of animal ’s body. It covers most organs and cavities within the body. It also form a barrier to keep different body systems separate . It always rest upon underlying connective tissues.

5. EPEHTELIAL TISSUES continue .. 5. Epithelial cells are closely packed, so there is very little inter-cellular space between the cells. Due to less of intercellular space blood vessels, lymph vessels and capallaries are unable to pierce this tissue, so blood circulation is absent in epithelium. Hence cells depend for their nutrients up on the underlying connective tissue. At the junction of the [Epithelial tissue and connective tissue] layer is present which is called of basement membrane, which is formed of mucopolysaccharides and collagen fibrils.

6. Different types of Epithelial tissues

7. Epithelial tissues … STRUCTURE LOCATION FUNCTION Simple Squamous : Simple layer of flatened & polygonal cells, large centrally located nucleus. Alveoli, blood vessels heart wall Filtration, absorption and secretion Simple Cuboidal : Single layer of cube-shaped cells, centrally located nucleus . Testes , Ovary, kidney tubules, salivary duct and pancreatic ducts Excretion, Secretion and absorption Simple Columnar :[non ciliated] Single layer of pillar shaped cells. Lining of stomach, small and large intestine, digestive glands and gall bladder . Secretion and absorption Simple Columnar :[ciliated Simple layer of ciliated rectangular pillar shaped cells Oviduct, Vas deferens, few portions of upper respiratory tract. Movement of gametes, and mucus by cili ary action

8. Connective tissue Areolar C onnective Tissue . Dense regular Connective Tissue . Adipose Connective Tissue . Skeletal Connective Tissue . Fluid Connective Tissue .

9. Areolar Connective Tissue I t is a loose and cellular Connective Tissue. It is the most abundant of all types of connective tissues. It has large amount of matrix. Its matrix consists of two kinds of fibres : White collagen fibres . yellow elastic fibres or elastin .

10. Dense Regular Connective Tissues It is a fibres connective tissue which c haracterized by systematically and densely packed fibres and cells …

11. Dense Regular Function …. Characters Tendons Ligaments Nature Tough and non-elastic . Strong and elastic . 2. Structure Made up of white collagen fibrous tissues . Made up of yellow fibrous tissue and white collagen fibrous tissue . 3. Arrangement of fibroblasts Present in rows between fibres . Scattered in matrix in between the bundles of white fibres . 4. Function Join muscle to bone . Join bone to bone .

12. Adipose Connective Tissue It consists of large number of oval and rounded adipose cells filled with fat globules . Adipose cells may contain single large fat droplet or several tiny droplets. Besides adipocytes, adipose tissue also contains fibroblast, macrophages .

13. Skeletal tissue Skeletal tissue forms the rigid skeleton which supports the vertebrate body , helps in locomotion and provides protection to many vital organs. It is mesodermal in origin. There are two types of skeletal tissue : Cartilage Bone

14. C artilage .. Cartilage is a special type of connective tissue which forms the soft endoskeleton of the body. It consists of extensive ground substance called chondrin . Types of cartilage : Hyaline cartilage White fibrous cartilage Yellow elastic cartilage Calcified cartilage

15. Bones .. Bone is the hardest tissue of the body. It forms endoskeleton to give firm support to the muscles. Its functions are : Bones form hard endoskeleton which give shape and support to the body . Bones protect vital organs of the body, such as brain, spinal cord, lungs, etc. Bones provide skeletal support to body and attaches the muscles. Bone marrow is the centre of blood cell formation in vertabrates .

16. Fluid Connective Tissue : I t is a special type of connective tissue which maintains link among different parts of the body. It receives materials from certain parts of the body and transports them to the other parts . It constitutes the transport system of the animals . It consists of two basic components Blood Lymph

17. Muscle tissue ..

18. Muscular system in our body …

19. Nervous tissue ..

20. Made by - Bhavya Patel Roll no - 906 Class - 9