One or more cells that secretes a particular product
Gland
2 major types of glands
Endocrine gland
Exocrine gland
Endocrine gland characteristics
- secretions are hormones
Exocrine gland characteristics
- includes sweat and oil glands
- includes the most abundant and widely distributed tissues
Connective tissue
Function of connective tissues
Characteristics of connective tissues
2 main elements of extracellular matrix
Ground substance
Fibers
What are ground substances?
It is mostly water along with adhesion proteins and polysaccharide molecules
What are fibers?
3 types of fibers
Collagen
Elastic
Reticular
What type of tissues are bones?
Osseous tissue
Bones are composed of:
Function of bones:
Used to protect and support the body
Most common cartilage
Hyaline cartilage
Hyaline cartilages are composd of:
- rubbery matrix
Example of hyaline cartilage
Entire fetal skeleton
Function of elastic cartilage:
Provides elasticity
Example of elastic cartilage
Supports the external ear
Fibrocartilage characteristics
Highly compressible
Example of fibrocartilage:
Forms cushion-like discs between vertebrae
Why is forming cushion-like discs between vertebrae important?
Because it allows you to absorb impact and maintain height
Characteristics of dense connective tissues:
- cells are fibroblasts
Examples of dense connective tissues
- ligaments (attach bone to bone)