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Chap. 3 Tissue Vocabulary 1.Histology 2.Tissue 3.Epithelial Tissue 4.Apical surface 5.Basal surface 6.Basement membrane 7.Goblet Cell 8.Gland 9.Secretion.

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Presentation on theme: "Chap. 3 Tissue Vocabulary 1.Histology 2.Tissue 3.Epithelial Tissue 4.Apical surface 5.Basal surface 6.Basement membrane 7.Goblet Cell 8.Gland 9.Secretion."— Presentation transcript:

1 Chap. 3 Tissue Vocabulary 1.Histology 2.Tissue 3.Epithelial Tissue 4.Apical surface 5.Basal surface 6.Basement membrane 7.Goblet Cell 8.Gland 9.Secretion 10.Hormone 11. Connective Tissue 12. Extracellular matrix 13. Ground substance 14. Muscle Tissue 15. Striations 16. Intercalated Disks 17. Nervous Tissue 18. Neuron

2 Tissue: groups of cells that are similar in structure and perform a common or related function Four primary tissue types: epithelial, connective, muscle, nervous Histology: the study of tissues

3 Tissues Foldable –FOUR TYPES OF TISSUES: Epithelial, Connective, Muscle, Nerve –SUMMARIZE THE FUNCTIONS/ROLE OF EACH –INCLUDE ANY SUBTYPES & LOCATIONS IN THE BODY –ORIGINAL PICTURES, WORDS, DIAGRAMS –COLORFUL –DESIGNED TO INSTRUCT ANATOMY STUDENTS –8.5 x 11 inch white, unlined paper; front & back if needed; one page for each tissue type.

4 CONNECTIVE TISSUE Use 2 separate sides of paper to include all of these embryonic tissue: mesenchyme connective tissue proper –loose areolar, adipose, reticular – show examples –dense (fibrous) regular, irregular – give an example of each of these cartilage –hyaline, elastic, fibrocartilage show examples bone blood

5 NERVOUS TISSUEMUSCLE TISSUE Use the book to find pictures and locations of these

6 FUNCTIONS OF EPITHELIUM PROTECTION ABSORPTION FILTRATION EXCRETION SECRETION

7 SPECIAL CHARACTERISTICS Cells fit closely together to form continuous sheets. Neighboring cells are bound by desmosomes and tight junctions. Always have one free surface, Apical Surface Exposed surface is either slick and smooth or ciliated. Lower surface of epithelium rests on top of a Basement Membrane. Avascular = No blood supply Regenerate easily if well nourished

8 Epithelial Tissue: Simplecomposed of one cell layer squamous cuboidal columnar psuedostratified columnar Stratifiedtwo or more cell layers squamous columnar transitional

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11 GLANDULAR EPITHELIA Glandone or more cells that make and secrete (export) a product Secretionan aqueous fluid that usually contains proteins; some are lipids or steroid-rich

12 Endocrine glandsinternal secretion ductless, secrete hormones: first into extracellular space then enter blood or lymphatic fluid structurally diverse examples: pituitary, thyroid, adrenal, gonads Exocrine glandsexternal and internal secretion more numerous, bound to ducts and secretions empty into ducts. examples: sweat, mucous (goblet cells), liver, pancreas, oil, salivary

13 simple columnar simple cuboidal simple squamous psuedostratified columnar

14 simple squamous simple cuboidal stratified squamous simple columnar psuedostratified columnar stratified cuboidal transitional epithelium

15 CONNECTIVE TISSUE Most abundant & widely distributed tissue

16 BINDING & SUPPORT PROTECTION INSULATION TRANSPORTATION CONNECTIVE TISSUE FUNCTIONS

17 Common Characteristics of Connective Tissue Arise from the mesenchyme (an embryonic tissue) Variations in blood supply: cartilage is avascular (no blood), Tendons and Ligaments (poor amounts of blood)other types have rich supply of blood Extracellular matrix: most connective tissue is nonliving and made up of different types of cells

18 structural elements of connective tissue ground substance: unstructured materials between cells; holds large amounts of fluid –interstitial fluid, cell adhesion proteins, proteoglycans –provides a medium for diffusion of nutrients between capillaries & connective tissue cells fibers –collagen, elastic, reticular fibers cells (-blast: forming cells –cyte: mature cells) –fibroblast, chondroblast, osteoblast, hematopoietic stem cell –other cell types (macrophage, mast)

19 Connective Tissue Types Embryonic Tissue: mesenchyme Loose Connective Tissue –areolar, adipose, reticular Dense (fibrous) Connective Tissue –regular, irregular Cartilage –hyaline, elastic, fibrocartilage Bone Blood

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31 Functions –cushions organs –inflammation –macrophage site –hold, convey tissue fluid Locations –under epithelia –lamina propria of mucous membranes –around organs –surround capillaries

32 Functions –muscles to bone –bone to bone –withstands tensile stress Locations –tendons –most ligaments –aponeuroses

33 Functions –supports, reinforces –resists compression –resilient cushioning Locations –end of long bones –ribs –nose –trachea, larynx

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35 Nervous Tissue neurons supporting cells Muscle Tissue skeletal smooth cardiac

36 Muscle Tissue Skeletal Muscle: Has obvious Striations

37 Muscle Tissue Cardiac Muscle Has Intercalated Discs

38 Muscle Tissue Smooth Muscle Cells are pointy on each end

39 Nerve Tissue


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