·
A group of cells, usually similar, which share a
particular function.
·
Each organ is made up of tissues.
I.
MUSCLE TISSUE
II.
NERVOUS TISSUE
III.
EPITHELIUM
IV.
CONNECTIVE TISSUE
Epithelium
Connective tissue
Fibrous (proper) Connective Tissue
Special Connective tissue
- To separate one region from the other; i.g. skin, stomach lining, blood vessel lining, intestine, heart.
- Forms exocrine glands
- The epithelial cells are they type of tissue that protects the underlying structures
Epithelia, it’s made of protein
fibers and it connects to the epithelium
To attach the epithelium to the
connective tissue beneath it
From the blood vessels in the connective tissue beneath the basement membrane
Epithelium is always bipolar. The
2 sides are called Basal Side and Apical Side. Basal Side faces the basement
membrane and the Apical side faces the space (inside the heart, stomach, ext.)
- Simple Epithelium
- Stratified Epithelium
- Transitional Epithelium
Simple Epithelium
Simple Squamous Epithelium
Found in the lungs
Simple Cuboidal Epithelium
Found in the
intestines and kidney
Simple Columnar Epithelium
When differentiated, they are
called GOBLET CELLS
They produce mucus
Pseudo-Stratified Epithelium
Found in the respiratory Tract. This epithelium needs goblet
cells nearby to produce mucus that contains the material to be swept. The
mucous catches the debris you inhale and the cilia sweeps the material up to
your throat where you cough it up and swallow it.
Stratified Epithelium
The type of epithelium is named by the apical layer
For example, if the basal layer is cuboidal shaped, but the
apical layer is squamous shaped, it is stratified squamous epithelium.
Stratified Squamous Epithelium
Keratinized Stratified Squamous Epithelium
Non-Keratinized Epithelium
Keratinized Stratified Squamous Epithelium
Non-Keratinized Stratified Squamous Epithelium
Stratified Cuboidal Epithelium
Stratified Columnar Epithelium
Transitional Epithelium
Transitional epithelium
By whether it is moist of dry
Mucosa and Serosa
Mucosa
Example: pseudo-stratified epithelium
Serosa
Found in parts of the body that needs lubrication
Keratinized stratified squamous epithelium
Collagen is a type of
fiber is found in all connective tissues (other than blood).
Collagen
has very
little blood supply so it does not regenerate well
Collagen
Provides support for connective tissue
Exocrine Glands
Endocrine Glands
Exocrine Glands
Endocrine Glands
- Serous Glands
- Mucous Glands
- Mixed Glands
- Oil Glands
- Sweat
- Mucous
- Wax and oil
- Sweat and mucous
Goblet cells are unicellular
glands
1. Merocrine Glands
- Apocrine Glands
- Holocrine Glands
Merocrine Glands
Exocytosis is when a secretion vesicle moves
to the plasma membrane, where it fuses and the material is released outside the
cell.
1) Apocrine
Glands
2) Example:
Mammary gland
3) Apocrine
glands secrete a protein
Holocrine Glands
Example: sebaceous glands
1) Apocrine
2) sebaceous and eccrine
Unicellular Glands and Multicellular Glands
Respiratory tract
Multicellular Gland
Simple
glands (sweat glands are simple tubular)
Compound
glands (mammary glands are compound alveolar)
ALVEOLAR TUBULAR
1. Loose connective tissue
2. Adipose connective tissue
3. Dense Irregular connective tissue
4. Dense Regular connective tissue
Loose connective tissue
Adipose Tissue
Fat is stored inside
1. Cushions organs
- Food storage
- Insulation
Dense Irregular Connective tissue
Dense Irregular Connective Tissue
Dense Regular connective tissue
Dense Regular connective tissue
Dense regular connective
tissue
They are not muscle tissues.
- Cartilage
- Bone
- Blood
Chondrocytes
Cartilage
- Hyaline Cartilage
- Elastic Cartilage
- Fibrocartilage
Bone
The main cell typo is Osteocyte
Blood
The main cell type is Erythrocyte
