Animal tissues. Histology: is the science that study animal tissues.

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Presentation transcript:

Animal tissues

Histology: is the science that study animal tissues

Types of animal tissues: 1.Epithelial tissues. 2.Connective tissues 3.Muscular tissues 4.Nervous tissues

Epithelial tissues: Characteristics: 1.Lining surfaces. 2.Closely aggregated cells. 3.Very little amounts of intercellular substances. 4.Basement membrane below epithelial tissue

Shapes of epithelial tissues 1. irregular: squamous 2. cube-shaped: cuboidal 3. column-shaped: columnar

Number of layers 1.simple. 2.Stratified 3.Pseudostratified.

Cilia on epithelial tissue 1.Ciliated 2.Non-ciliated

Simple squamous epithelium

Simple cuboidal epithelium Kidney tubules

Simple columnar epithelium Villi of small intestine

Pseudostratified columnar ciliated ep.

Connective tissues 1.Connect between two parts of the body 2.High amounts of inter cellular substances 3.Fibers in matrix

Connective tissues 1.Loose connective tissues a.Connect between skin and underlining tissues. b.Visceral 1.Dens connective tissues Dens fibers

Loose connective tissue Areolar connective tissue

Adipose tissue

Dens connective tissue 1.Tendon: connect between muscles and bone 2.Ligament: connect between bones

tendon

Cartilage Chondrocyte ( cartilage cell) Types: 1.Hyaline cartilage. 2.Elastic cartilage 3.Fibro cartilage

Hyaline cartilage

Elastic cartilage

Bones 1.Solid connective tissue. 2.Solid matrix (ossien) Types: - Spongy bone - Combact bone

Spongy bone and combact bone 1.Spongy bone: bar-like extensions called trabaculae 2.Combact bone: haversian systems

Combact bone (haversian system)

Blood Components of blood: 1.White blood cells (leukocytes). 2.Red blood cells (erythrocytes). 3.Platelets. 4.plasma

Leukocytes

Muscular tissue

Skeletal muscle 1.Responsible for voluntary movement 2.Striated 3.Locate beside bones

Cardiac muscles 1.Responsible for involuntary movement. 2.Striated 3.Located in heart

Smooth muscles 1.Responsible for involuntary movement. 2.Non striated. 3.Located in digestive system.

Nervous tissue Nerve cell ( neuron)

Spinal cord

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