Tissues Chapter 5
Terms
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- 4 General types of Tissues?
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1 Epithelial
2 Connective
3 Muscle
4 Nervous - What is the lacation of Epithelal Tissue?
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Inner lining of body cavities
hollow organs
In glands - What are the Characteristics of Epithelial Tissue?
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One portion is conected to CT by the basement membrane.
No vascular supply recieve nutrients rid wastes by simple diffusion W/ CT. Go through cell cycle alot replaceing damaged tissue. - What are the functions of Epethelial tissue?
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Protection for underlying tissue from Physical, Chemical, and infection.
Used in Secretion
Used in excretion "Wastes"
Used in absorption -
Simple Squamous
Location & Function -
Found in Lungs
Lones blood vessels
Things travel through easly thin -
Stratified squamous
Location & Function -
Found in Skin, Mouth, Vagina
Provides protein to underlying tissues -
Simple cuboidal
Location & Function -
Found in pancreas Covers Ovaries.
Secretion forms tubes -
Stratified Cuboidal
Location & Function -
Found in Mammary glands Salivary Glands.
Secretion -
Simple Columnar
Location & Function -
Covers uterus and digestive tract.
secretion of enzymes and absorption of products. -
Pseudostratified Columnar
Location & Function -
Lines passage ways of respiratory systems.
Secrete mucus to trap materials or possess cilia to trap particles,cells. -
Stratified Columnar
Location
Function - Found in males, Urethra Van deferens
- Glandular
- Found embedded in Columnar or cuboidal epithelium and form glands
- What 2 glands are found in Glandular
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Exocrine Glands- secretes some products onto/into some internal or external surface.
Endocrine Glands-Secretes hormones into the blood -
Connective Tissue:
Characteristics1-5 -
1.Cells farther apart
2.Space filled with non-living material called matrix.
3. reproduce continuously
4.Vascular tissue embedded and typically well nourshed.
5.Contains variety of cells -
Connective Tissue:
Functions1-7 -
1.Bind structures together
2.provide support and protection
3.structural material
4.store fat
5.produce blood cells
6.protect against infection
7.repair some tissue damage - What is a fibroblasts and chondrocytes?
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1.Lagre star shaped cells that produce long thread like fibers that form matrix.
2.Mature cells of cartilage produce a non-living spongy matrix.Gives cartliage a spongy consistency shock absorber. - What is matrix?
- Space between cells that is made up of Collagen Fibers and Elastic fibers.
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Elastic fibers
Collagen Fibers -
1.Thin fibers Composed of protein elastin allows matrix to be stretchy.
2.thick fibers composed of protein collagen parrallel bundles flexible and strong. - Where are fibroblasts and chondrocytes found?
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1.any tissue with the name connective tissue.
2.only in Cartilage. -
DENSE CONNECTIVE TISSUE
Dense Regular CT:
Charcteristics
Location -
1.Large collagen fibers run parallel to one another.With stand continuous pulling in one direction.small amount of vascularization.
2.Tendons & Ligaments -
Dense Irregular CT:
Charcteristics
Location -
1.Large collagen fibers randomnly woven into matrix. Resists pulling in many directions.fibroblasts present few.
2.Heart valves & Dermis -
Elastic CT:
Charcteristics
Location -
1.Many long elastic fibers found parallel. allows tissue to stretch.
2.Lung tissue & Trachea -
LOOSE CONNECTIVE TISSUE
Charcteristics
Location -
1.Contains all fibers but few fibers. Provides strength, elasticity and support in all directions
2.Hypodermis and Mucous membranes -
Adipose Tissue:
Charcteristics
Location -
Specialized form of CT stores fat molecules in cytoplasm. Born with limited amount fat is stored cells get bigger.
2.Beneath the skin & between muscles - Cartilage
- No blood vessels or nerves found within cartilage heals slowly.
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KINDS OF CARTILAGE:
1-3 -
1.Hyaline Caqrtilage
2.Fibrocartilage
3.Elastic cartilage -
Hyaline cartilage:
Charcteristics
Location -
1.Most abundant of all cartilage very fine fiber cant see with microscope Many chondrocytes in lacunae.
2.Ends of long bones & nose -
Fibrocartilage:
Charcteristics
Location -
Chondrocytes are scattered among clearly visible bundles of collagen fibers.
2.intervertebral discs -
Elastic Cartilage:
Charcteristics
Location -
Chondrocytes located in between a network of elastic fibers cartilage is tuff yet flexible.
2.external ear - Bone Tissue:
- Osteocytes found in lacunae are in tough calicium and collagen based matrix
- Two types of bones?
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Compact bone
Spongy bone - What are lacunae?
- A hollow cavity with cells in them.
- Two types of tissue lacunae are found in?
- Bone and cartilage
- Blood
- A connective tissue with liquid matrix called plasma
- Three types of blood cells and functions?
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1.Red blood cells-Carry oxygen
2.White blood cells-fight disease
3.Platelets-cell fragments used in blood clotting - What does dense refer to?
- The density of fibers within the tissue.
- What does loose refer to?
- Tissue contains few fibers.
- What are the three types of muscle tissues?
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1.Skeletal muscle
2.smooth muscle
3.Cardiac muscle -
Skeletal muscle:
Location & Function -
1.Any muscle connected to the skeleton.
2.Move bone or skin moved consciously -
Smooth muscle:
Location & Function -
1.Walls of hollow organs & blood vessels
2.Move involuntarily used to constrict the lumen of tublar structures -
Cardiac muscle:
Location & Function -
1.Only in Heart
2.contract to pump blood - Nervous Tissue
- Neurons and Neuroglial
- Two types of cells found in Nervous Tissue?
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Neurons- Transmit, receive, and interpert messages.
Neuroglial cells-Support activities of neurons