Connective Tissue Flashcards
4 main types of connective tissue?
Connective Tissue Proper (loose + dense)
Cartilage
Bone
Liquid
7 functions of connective tissue?
- Enclosing + Separating Tissue
- Connecting tissues
- Supporting / moving body parts
- Storing compounds
- Cushioning / insulating
- Transporting
- Protecting
3 aspects of extracellular matrix?
Ground substance
Fibres: Collagen / Elastic / Reticular
Fluid
Examples of ‘blast’ cells + What they do?
Osteoblasts
Chondroblasts
Fibroblasts
Hematopoietic stem cells
They produce fibres and the ECM
Enclosing + separating tissue examples?
muscles - arteries - veins - nerves
remember blood is connective tissue, ^ enclose
Connecting tissues examples?
Tendons (muscles to bones)
Ligaments (Bone to bone)
Supporting / moving body parts example?
Cartilage (supports joint movement)
Storing compounds examples?
Bone (stores calcium + phosphate) Adipose tissue (high energy molecules)
Cushioning / insulating example?
Adipose tissue (cushions tissues & organs)
Transporting example?
Blood (nutrients, minerals, enzymes, hormones, gases, immune system cells)
Protecting example?
Bone (protect structure) Immune cells (pathogens + toxins)
3 types of loose proper CT
Areolar - Adipose - Reticular
What connective tissue has a lack of collagen?
Reticular loose tissue
Adipose loose tissue
Elastic dense tissue
Hyalin cartilage
3 types of dense proper CT
Regular - Irregular - Elastic
Describe areolar loose tissue?
Function: strength, elasticity + support
Structure: lots of collagen, elastin + reticular fibres
Location: skin - around blood vessels - mucous membranes
Describe adipose loose tissue?
Function: protection - insulation - energy store
Structure: mainly adipocytes
Location: around organs - beneath skin (insulation)
Describe reticular loose tissue?
Function: The fibers form a soft skeleton (stroma) to support the lymphoid organs (lymph node stromal cells, red bone marrow, and spleen)
Structure: reticular fibres - lack of collagen
Location: gut - liver - spleen - bone marrow
Examples of ‘cyte’ cells + What they do?
Osteocytes - Chondrocytes - Fibrocytes - erythrocytes - leukocytes - thrombocytes
Maintain the matrix that the blasts (themselves in their immature state) have produced
Describe regular dense tissue?
Function: Strength + support (single direction)
Structure: Lots of collagen (uniform) & fibroblasts
Location: ligaments, tendons
Describe irregular dense tissue?
Function: Strength + support (all directions)
Structure: Lots of collagen (random assortment) & fibroblasts
Location: Between organs, dermis of skin, periosteum of bone
Describe elastic dense tissue?
Function: Strength + recoil
Structure: Lots of elastin + fibroblasts
Location: Heart + lungs (consider the function)
3 types of cartilage?
Fibro - Hyalin - Elastic
Describe Fibro cartilage?
Function: Support + fusion (connect bones)
Structure: Chondrocytes within collagen fibres
Location: Skull sutures (fibrous joint)
Describe Hyalin cartilage?
Function: Shock absorption
Structure: Chondrocytes with few collagen fibres
Location: Bone, trachea
