Connective Tissue 2 Flashcards
1
Q
What are the 4 types of connective tissue?
A
Areolar
Adipose
Fibrous
Elastic
2
Q
Loose areolar connective tissue
A
- Most generalised of all connective tissue
- Semi-solid structure ie.holds organs in place
- Contains many fibroblasts
- Widely separated by elastic and collagen fibres
- Connects and supports other tissues
3
Q
Location of loose areolar tissue?
A
- Under skin
- Between muscles
- Supporting blood vessels and nerves
- Within alimentary canal
- Within glands supporting secretory cells
- Pulp
4
Q
Function of loose areolar tissue?
A
- Insulation/storage
- Binding & structural support
- Protection
- Transport
- Support
- Repair/defense
5
Q
Adipose tissue?
A
- Consists of fat cells which contain large fat globules in a matrix of areolar tissue
- Two types, brown and white
- Storage for energy in form of fat
6
Q
White adipose tissue?
A
- contributes to approx. 20 -25 % body weight
(Bulk of body fat) - Found:- supporting kidneys and eyes
- Between muscle fibre and under the skin
where it acts as a thermal insulator
7
Q
Brown adipose tissue
A
- Present in small quantities in adults (more predominant in newborn)
- Metabolised produces more heat than energy
- Contributes to maintenance of body temperature
8
Q
Fibrous tissue?
A
- Dense/Rigid connective tissue
- Closely packed bundles of collagen
fibres with very little matrix - Fibroblasts – collagen – bone
- Forms ligaments – binds bones
- Outer protective covering for bone (PERIOSTEUM)
- Outer protective covering for some organs e.g. kidneys, lymph nodes and brain
- Forms muscle sheaths forming tendons which attach muscle to bone
9
Q
Elastic tissue
A
- Capable of extension and recoil
- Matrix consists of masses of elastic
fibres secreted by fibroblasts - Few cells present
- Found in organs where alteration
of shape is required e.g. blood
vessel walls, epiglottis and the
periodontal ligmament
