Tissues Distinguish the four tissue types. - epithelial, connective, nervous and muscle.
Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal...
-
Upload
abner-owen -
Category
Documents
-
view
222 -
download
2
Transcript of Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal...
![Page 1: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/1.jpg)
Tissues
Histology- the study of tissues
![Page 2: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/2.jpg)
4 tissue types
1. Epithelial Tissue– Covers both internal and external surfaces
2. Muscle Tissue– Highly specialized tissue designed to contract
3. Nervous Tissue– 2 types of cells neurons (carry signal) and neuroglia
(care for and support neurons).
4. Connective Tissue– Connects, protects, supports, insulated, energy
storage, blood formation, & body tissue repair (Scars)
![Page 3: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/3.jpg)
Epithelial Tissue
• # of layers– Simple one– Stratified >1
• Cell shape– Cuboidal- Cube shaped– Columnar – column
shaped– Sqamous- squished like a
pancake.
![Page 4: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/4.jpg)
Epithelial Tissue- SimpleSquamous Cuboidal
Columnar
![Page 5: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/5.jpg)
Simple Squamous
Nucleus
Cell MembraneSin
gle la
yer o
f
Flatten
ed ce
lls
![Page 6: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/6.jpg)
Simple Cuboidal
Nucleus
Cell Membrane
Basement Membrane
Single
laye
r
Cube
shap
edce
lls
![Page 7: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/7.jpg)
Simple Columnar
NucleusCell Membrane
Basement Membrane
Single layerColumn shaped
cells
![Page 8: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/8.jpg)
Epithelial Tissue- Stratified
Squamous Cuboidal Columnar
![Page 9: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/9.jpg)
Stratified Squamous
NucleusCell Membrane
Basement Membrane
![Page 10: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/10.jpg)
Stratified Cuboidal-Not on practical
• Found:– Sweat gland ducts– Ovarian follicular cells– Salivary gland ducts
• Function:– Secretion– Absorption– Protection against
infection
![Page 11: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/11.jpg)
Stratified Columnar- Not on practical
• Found:– Mammary gland ducts– Larynx– Portions of the male
urethra
• Function– Protection– secretion
![Page 12: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/12.jpg)
ExceptionsPseudostratified Ciliated columnar
Transitional Epithelium
Collapsed Distended
![Page 13: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/13.jpg)
Pseudostratified Ciliated columnar
NucleusCell Membrane
Basement Membrane
Cilia
Free surface
![Page 14: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/14.jpg)
Transitional Epithelium
Cell Membrane
Nucleus
Basement membrane
![Page 15: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/15.jpg)
Muscle TissueHighly specialized tissue designed to contract
• 3 types:
Skeletal Muscle Cardiac Muscle Smooth Muscle
![Page 16: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/16.jpg)
Skeletal Muscle
Multiple Nuclei
Striations
MuscleFibers
![Page 17: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/17.jpg)
Cardiac Muscle
NucleusStriations
IntercalatedDisk
![Page 18: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/18.jpg)
Smooth Muscle
NucleusMuscle cell
![Page 19: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/19.jpg)
Nervous Tissue
• Two major cell populations1. Neurons- specialized cells that receive stimuli
and conduct impulses all over the body2. Neuroglia- special cells that protect, support,
and insulate the more delicate neurons
![Page 20: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/20.jpg)
Mot
or N
euro
n
![Page 21: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/21.jpg)
Multipolar neuron/ Motor neuron
Axon
Glial Cells
Nucleus
Nucleolus
Dendrite
Axon Hillock
Cell body
![Page 22: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/22.jpg)
Connective Tissue• Usually have a rich blood supply• Composed of many cell types• Great deal of non-cellular, nonliving material
between cells (Matrix)
Jelly Fibers
•Interstial fluid, cell adhesion proteins, & proteoglycans•Dependent on combo is can be liquid, semisolid, gel-like or very hard
•Collagen fibers: very strong and flexible but not elastic•Elastic fibers- can be stretched but return to their original shape•Reticular fibers- fine collagen fibers, not strong but fill spaces
![Page 23: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/23.jpg)
Connective Tissues (CT)- all derived from mesenchyme
1. CT proper– Areolar CT– Dense CT
A. RegularB. Irregular
– Adipose– Reticular
2. CartilageA. Hyaline CartilageB. FibrocartilageC. Elastic cartilage
3. Bone4. Blood
![Page 24: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/24.jpg)
Loose (Areolar) Connective tissue
Collagen Fiber
Reticular Fiber
Elastic fiber
Nucleus
![Page 25: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/25.jpg)
Loose connective tissueAdipose Tissue Reticular tissue
Adipocyte
Nucleus
Cell membrane Reticular fiber
Cell of organ being supported by the fibers
![Page 26: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/26.jpg)
Dense connective tissue
Dense Regular CT Dense Irregular CT
Nucleus
Collagen Fiber
Collagen Fiber
Nucleus
![Page 27: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/27.jpg)
CT-Cartilage
Hyaline Cartilage fibrocartilage Elastic Cartilage
![Page 28: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/28.jpg)
Hyaline Cartilage
ChondrocyteLacuna
Perichondrium
![Page 29: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/29.jpg)
Fibrocartilage
Chondrocyte
Collagen fibers
![Page 30: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/30.jpg)
Elastic Cartilage
Chondrocyte
Lacuna
Elastic Fibers
![Page 31: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/31.jpg)
Bone
ConcentricLamella
Lacuna
Central canal
Osteon
![Page 32: Tissues Histology- the study of tissues. 4 tissue types 1.Epithelial Tissue – Covers both internal and external surfaces 2.Muscle Tissue – Highly specialized.](https://reader035.fdocuments.net/reader035/viewer/2022062321/56649f285503460f94c417dc/html5/thumbnails/32.jpg)
BloodRed Blood Cell
White Blood Cell
Plasma
Platelet