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The Human Body in Health and Illness, 4 th edition Barbara Herlihy Chapter 6: Tissues and Membranes.

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Presentation on theme: "The Human Body in Health and Illness, 4 th edition Barbara Herlihy Chapter 6: Tissues and Membranes."— Presentation transcript:

1 The Human Body in Health and Illness, 4 th edition Barbara Herlihy Chapter 6: Tissues and Membranes

2 Lesson 6-1 Objectives List the four basic types of tissues. Describe the functions of epithelial tissue. Explain how epithelial tissue is classified. Differentiate between endocrine and exocrine glands. Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 2

3 Types of Tissues Tissues: Groups of cells that are similar to one another in structure and function Histology: Study of tissues Four major types of tissues – Epithelial – Connective – Nervous – Muscular Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 3

4 Epithelial Tissue Functions Protection Absorption Filtration Secretion Transportation Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 4

5 Traits of Epithelial Tissue Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 5 Forms continuous sheets, like floor tiles Outer surface unattached Undersurface attached to basement membrane Avascular Well-nourished, regenerates quickly Forms continuous sheets, like floor tiles Outer surface unattached Undersurface attached to basement membrane Avascular Well-nourished, regenerates quickly

6 Types of Epithelial Tissue Classification according to shape – Squamous – Cuboidal – Columnar Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 6

7 Layers of Epithelial Tissue Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved.. 7 Classified according to number of layers –Simple epithelium –Stratified epithelium Classified according to number of layers –Simple epithelium –Stratified epithelium

8 Location of Epithelial Tissues Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 8

9 Glandular Epithelia Exocrine glands Endocrine glands Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 9

10 Lesson 6-2 Objectives Describe the functions of connective, muscle, and nervous tissue. List the types of epithelial and connective tissue membranes. Differentiate between mucous and serous membranes. Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 10

11 Functions of Connective Tissue Connection Support Protection Fat storage Transportation Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 11

12 Characteristics of Connective Tissue Intercellular matrix – Abundant – Varies from liquid to hard Most is well vascularized. – Exceptions: Tendons, ligaments, and cartilage Presence and amount of protein fibers vary. – Collagen – Elastin – Reticular fibers (fine collagen) Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 12

13 Types of Connective Tissue Loose – Areolar, adipose, reticular Dense fibrous Cartilage – Hyaline, fibrocartilage, elastic Bone Blood and lymph Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 13

14 Locations of Connective Tissue Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 14

15 Nervous Tissue Makes up the brain, spinal cord, and nerves Two types of cells – Neurons – Neuroglia Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 15

16 Muscle Tissue Composed of cells (fibers) that contract to cause movement of a body part. Three types of muscle – Skeletal muscle – Smooth muscle – Cardiac muscle Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 16

17 Locations of Muscle Tissue Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved.. 17

18 Tissue Repair Regeneration: Replacement of tissue via mitosis Fibrosis: Replacement of injured tissue with fibrous connective tissue (scar tissue) Keloid scarring: Excessive fibrosis Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 18

19 Steps in Tissue Repair 1.Wound 2.Clot and scab 3.Tissue repair begins 4.Scar tissue forms 5.Epithelial cells multiply 6.Scab detaches Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 19

20 Membranes Thin sheets of tissue that – Cover surfaces – Line body cavities – Surround organs Classification of membranes – Epithelial – Connective Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 20

21 Cutaneous Membrane: Skin Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 21

22 Connective Tissue Membranes Synovial (lines joints) Periosteum (lines bones) Perichondrium (lines cartilage) Meninges (lines central nervous system) Fascia (found throughout the body) Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 22

23 Mucous Membranes Line all body cavities that open to the exterior of the body – Respiratory – Digestive – Urinary – Reproductive Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 23

24 Serous Membranes Line ventral body cavities that do not open to the exterior Pleura – Parietal and visceral Pericardium Peritoneum – Parietal and visceral Copyright © 2011, 2007 by Saunders, an imprint of Elsevier Inc. All rights reserved. 24


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