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TISSUES NOTES PART 3. List the body organization terms in the correct order. The correct order of body organization is: atoms – molecules – cells – tissues.

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Presentation on theme: "TISSUES NOTES PART 3. List the body organization terms in the correct order. The correct order of body organization is: atoms – molecules – cells – tissues."— Presentation transcript:

1 TISSUES NOTES PART 3

2 List the body organization terms in the correct order. The correct order of body organization is: atoms – molecules – cells – tissues – organs – organ systems – organism. Define the term “tissue”. A tissue is similar cells with the same function. Which tissue functions to cover or line organs? Epithelial tissue functions to cover or line organs.

3 What is the function of stratified squamous epithelium? The function of stratified squamos epithelium is protection from injury. What are columnar epithelium? Columnar epithelium are long rectangular cells, packed close together. Which type of tissue moves mucus or eggs? Ciliated epithelium (aka: psuedostratified epithelium) moves mucus or eggs. Where is ciliated epithelium located? Ciliated epithelium is located in the trachea and fallopian tubes (oviducts)

4 What is a matrix? A matrix is an intracellular substance in which tissue is housed or embedded. Where is loose connective tissue located? Loose connective tissue is located in the dermis of the skin and the subcutaneous layer of the skin. How are dense connective tissue fibers arranged? Dense connective tissue fibers are parallel. Where is dense connective tissue located? Dense connective tissue is located in tendons and ligaments.

5 What is an osteocyte? An osteocyte is a living bone cell. What are the 3 types of cartilage? Hyaline: connects ribs to sternum, ends of bones Elastic: outer ear or vocal cords Fibrocartilage: between vertebrae and other joints Where are the 3 types of cartilage located? The three types of cartilage are: hyaline – elastic – fibrocartilage.

6 What is the function of adipose tissue? The function of adipose tissue is: stored energy – food – padding – insulation.

7 Tissue:Stratified squamous epithelium How do you know? Cells are round on the bottom and begin to flatten out on top Location:skin

8 Tissue:Ciliated Epithelium (aka: psuedostratified epithelium) How do you know?Cells have cilia on them Location:Trachea & fallopian tubes (oviducts)

9 Tissue:Columnar Epithelium How do you know?Cells are shaped like columns Location:Lining of the digestive tract

10 Tissue:Loose connective tissue (aka: areolar tissue) How do you know? Collagen & elastin with water Location: Dermis of skin – subcutaneous layer

11 Tissue:Dense connective tissue How do you know?Parallel collagen fibers Location:Ligaments and tendons

12 Tissue:Hyaline cartilage How do you know?Osteocytes (bone cells) scattered in the matrix Location:Connects ribs to sternum – covers ends of bones

13 Tissue:Adipose tissue (fat) How do you know? Large cell - vacuole filled with fat droplet Location : Throughout the body – used for padding, insulation

14 III. Nervous Tissue made of neurons (nerve cells) Function: send - receive messages, communicate Location: brain, spinal cord, nerves

15 IV. Muscle Tissue Function: to contract (get shorter) 3 Types of Muscle Tissue: 1. Smooth Muscle involuntary, intestines, breathing

16 2. Cardiac Muscle involuntary, heart muscle contains INTERCALATED DISCS

17 3. Skeletal Muscle attached to bones - striated (striped), multiple nuclei

18 Tissue Repair Regeneration: new cells are same type & normal function is restored Fibrosis: replacement tissue develops (scar tissue) - some loss of function type of repair depends on: 1. how severe injury is 2. what kind of tissue it is

19 Tissues that Regenerate: epithelial tissue loose & dense connective tissue bone Tissues that DON’T Regenerate: skeletal & cardiac muscle nervous tissue

20 PATHOLOGY study of diseases – how they occur – changes caused by disease Cancer produced by cell mutation cancerous cells: reproduce quickly take away function of tissues can METASTASIZE (spread) to entire body can produce tumors: BENIGN - harmless MALIGNANT – harmful, spreading


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