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Chapter 4: Tissues 1. 2.

3. 4.

I. Epithelial Tissue - covers 1. Adheres to each other and a 2. Does not have its own 3. May be 4. Epithelium

A. Simple squamous Single layer of Lines

B. Simple cuboidal Single layer of In bronchioles of

C. Simple columnar Single layer of Lines Function:

D. Pseudostratified columnar Appears to be layered – (All cells Lines parts of Cilia moves trapped dust. Goblet cells secrete mucus.

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E. Stratified squamous Many layers of Covers Covers skin – dries out and accumulates protein keratin.

F. Transitional epithelium Lines Function: Relaxed – up to 8 layers Stretched – 2–3 layers

G. Glandular Epithelium Tissue that secretes fluid products Examples – goblet cell – sweat gland intestinal gland sebaceous gland salivary gland -

II. Connective Tissue Located Designed to

Three categories Connective tissue proper

Supporting C.T.

Fluid C.T.

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Three basic components Cells –

Protein fibers Collagen – Elastic – Reticular Ground Substance – also called Consists of

1. (Loose) Areolar C.T. Thin, Supports

2. Dense C.T. Slow healing – Regular – Irregular –

3. Elastic C.T. Occurs

4. Reticular C.T. Supporting

5. Adipose Stores Functions:

6. Cartilage Chondrocytes - are in small chambers called ___________ surrounded by ____________

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(A) Hyaline cartilage – supports

Found at end of bones in growth plates (B) Fibrocartilage - found in (C) Elastic cartilage – found in

7. Bone Is called osseous tissue Minerals (calcium salts) are deposited onto collagen fibers.

8. Blood Blood plasma – (A) Erythrocytes (red blood cells) –

(B) Leukocytes (white blood cells) Granulocytes

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(C) Platelets Function:

III. Muscle Tissue (A) Skeletal – long, cylindrical multinucleated striated voluntary (B) Cardiac – shorter, branched cell one or two nuclei striations involuntary has intercalated discs (C) Smooth – muscles of internal organs tapered cells one nucleus lacks striations involuntary A muscle cell is called Cell membraneCytoplasm – Muscle fibers -

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