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Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3) Muscular 4) Nervous

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Page 1: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Tissue = Groups of cells and cell products with similar structure and function.

There are four 1o tissues in the body:

1) Epithelium

2) Connective

3) Muscular

4) Nervous

Page 2: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Functions of Epithelial Tissue

1. Physical Protection

2. Regulate Exchange (permeability)

3. Provides Sensation

4. Produce Secretions

Page 3: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Characteristics of Epithelial Tissue

Page 4: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Characteristics of Epithelial Tissue

1. Cellularity – composed mostly of cells.

2. Polarity – sidenedness of tissue.

3. Attachments – physically connected to neighboring cells.

4. Avascular – has no blood supply of its own.

5. Highly Regenerative – replaces itself constantly.

Page 5: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Epithelial Tissue

Tight Junctions

Desmosomes

Specialized apical end

Page 6: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Classification of Epithelia

Cuboidal epithelium - Short cube-shaped hexagonal boxes.

1. Number of cell layers

2. Shape of Exposed (apical) cells

A) Single layer of cells = Simple Epithelium

B) Several layers of cells (more than one) = Stratified Epithelium

Squamous epithelium - Thin and flat.

Columnar epithelium - Taller than it is wide.

Transitional epithelium - Changes shapes (from squamous to cuboidal).

Page 7: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Simple (1 cell layer) Stratified (more than 1 cell layer)

1) Simple Squamous Epithelium

2) Simple Cuboidal Epithelium

3) Simple Columnar Epithelium

4) Pseudostratified Ciliated Columnar Epithelium

5) Stratified Squamous Epithelium

6) Stratified Cuboidal Epithelium

7) Stratified Columnar Epithelium

8) Transitional Epithelium

Classification of Epithelia

Glomerular capsule; Alveolus

Renal tubules; Thecal follicle (thyroid gland)

Stomach, Small and Large Intestines

Trachea, larynx, bronchi

Keratinized = EpidermisNon-keratinized = esophagus, cheek

Ducts of sweat glandsDucts of salivary glands

Male urethra

Urinary bladder, ureter

Page 8: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Simple Squamous Epithelium

Simple

Cuboidal

Epithelium

Page 9: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Simple Columnar Epithelium

Pseudostratified Ciliated Columnar Epithelium

Page 10: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Stratified Squamous Epithelium

Page 11: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Stratified Cuboidal Epithelium

Stratified Columnar Epithelium

Page 12: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Transitional Epithelium

Page 13: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Connective Tissue

Connective Tissue Proper

1) Blood 2) Lymph

Supporting Connective Tissue

Fluid Connective Tissue

1) Loose1) Areolar2) Adipose3) Reticular

2) Dense1) Regular2) Irregular3) Elastic

1) Bone1) Spongy2) Compact

1) Cartilage1) Hyaline2) Elastic3) Fibrocartilage

Page 14: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Areolar Tissue

Page 15: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Adipose Tissue

Reticular Tissue

Page 16: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Dense Regular Connective Tissue

Page 17: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Dense Irregular Connective Tissue

Elastic Tissue

Page 18: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Hyaline Cartilage

Page 19: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Elastic Cartilage

Fibrocartilage

Page 20: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Bone Tissue

Compact BoneSpongy Bone

Page 21: Tissue = Groups of cells and cell products with similar structure and function. There are four 1 o tissues in the body: 1) Epithelium 2) Connective 3)

Hematopoietic stem cells produce blood and lymph cells

Fluid Connective Tissue


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