Introduction to Anatomy Flashcards
What are the 4 main types of tissue?
Connective tissue
Muscular tissue
Epithelial tissue- lines hollow organs and body cavities
Nervous tissue
What is connective tissue?
The most abundant and widely distributed tissue e.g bone, ligament, fat, blood
What is the function of connective tissue?
- Bind and support other tissues e.g ligament and bone
- Protect and insulate organs e.g fat
- Transport nutrients e.g blood
What are the features of connective tissue?
Cells
Matrix
Connective tissue are made up of cells
There are two types of cell: Immature class of cell (BLAST) e.g osteoblast produce matrix
Mature class of cell (CYTE) e,g osteocyte Maintain the matrix
What is the matrix?
make up of the matrix gives each type of connective tissue unique properties
There are protein fibres in the ground substance
What is ground substance?
composed of proteoglycons:
- core protein chain
- polysaccharide side- chains
Amorphous: No specific shape
what is the purpose of ground substance in the matrix of connective tissue?
-support cells in the matrix
-bind cells together
act as a medium for substance exchange between blood and cells
Protein fibres in the matrix of connective tissue consist of
elastic fibres-flexibility
collagen fibres- strength
collagen fibres features
consist of a protein called collagen
very tough and resistant to tension
often arranged in bundles, increase strength
allow some flexibility
elastic fibres features
consists of protein -elastin
can be stretched 150% of relaxed length without breaking