(Pt.2) Connective Tissue Types Flashcards
(53 cards)
What is the major difference with the types of connective tissue
- major difference reflect cell types, types and relative amounts of fiber
What is Mesenchyme
- fluid ground substance with fine sparse fibers and star shaped mesenchymal cells
What are the types of Connective tissue
Connective tissue proper
Bone
Cartilage
Blood
What are the subclasses of Connective tissue proper
Loose:
- Areolar
- Adipose
- Reticular
Dense:
- dense regular
- dense irregular
- elastic
What is areolar connective tissue (ct proper)
- most widely distributed in body
- Universal packing material btw tissues
- CT, epithelia rest upon
- present in all mucous, mem as lamina propia
What are the functions of areolar ct
• Supporting/ binding other tissues (Job of tibers)
• holding body Fluids (grnd sub role)
- defend against infection (Via activity of WBC’s/macrophages)
• Storing nutrients as Fat in adipocytes (fat Cells)
What does adipose ct structural appearance look like and what does it’s appearance allow it to do
Struct ft, loose arrangement of fibers & because loose nature:
- Provide reservoir of water/Salts for surrounding body tissues
- hold more fluid than entire blood Stream
- where, all body Cells retain nutrients/release waste
What are the cells of Areolar CT
Cells:
- fibroblast (Predominant)
- Macrophages (many)
- adipocytes (Singly)
- Mast Cells (sometimes)
What is the Ground Substance like of Areolar CT
- Viscous like molasses (be ,high conc. of hyaluronic acid)
- hinder movemntofCellS
- wbes secrete enzyme (hyaluronidase) to liquify
What is Adipose CT (CT Proper)
- Similar to are Areolar CT
- nutrient Storing, greater
- richly Vascularized (high metabolic activity)
- Shock absorber, energy Storage site and Usually in SubCutaneous tissue
What is the matrix like of Adipose Tissue
- matrix, Scanty and cells packed close together
What does fat do, and it’s a poor what (about Adipose tissue)
stop heat loss from body fat is a poor Conductor
What are the other sites, fat build (Adipose tissue)
- Kidney, abdomen, hips, behind eyeballs
- Small amounts serve local nutrient needs of highly active organs
(heart, lymph nodes, within muscles)
What is White fat, and what does it do (adipose tissue)
white fat white (adipose tissue)
- store nutrients mainly for Other cells
What is brown fat, and it’s location
Brown Fat (Brown adipose tissue) - richly Vascular, mainly on baby’s back
Where is the location of brown fat for adults (adipose tissue)
- collar bone, neck, spine, abdomen
What is Reticular Connective Tissue (CT proper)
- resemble Areolar CT
- Fibers widely distributed in body
- limited in certain sites
What kind of fibers does Reticular CT have what are they doing in the matrix
- only reticular fibers in matrix that form a delicate
network which fibroblasts
called reticular cells are scattered
What does Reticular CT form
labyrinth like Stroma/internal
frame work that can support many free blood cells, Spleen, lymph nodes and bone marrow
What do all Connective Tissue- Proper Dense CT have
- all have Fibers tht are prominent element, so
called fibrous CT
What is Dense Regular Connective Tissue and what fibers does it have
- Closely Packed abundant of collagen fiber that are parallel and running
in the same direction - great resistance to tension
- Few cells other than Fibroblast and poorly
vascularized
Can Dense Regular CT stretch
- Collagen fibers are
Slightly wavy, it can
stretch a little but once Straighten out theres
no further give
What does Dense Regular CT form with its enormous tensile strength
With enormous tensile strength, it forms:
- tendons: cords that attach muscle to bone
- ligaments: bind bones together at Joints, more stretchy and elastic fibers
- aponeuroses: flat sheet like tendons tht attach other
muscles to muscle or to bones
What is Dense irregular CT (CT proper)
-Same Struct as regular variety, but collagen fibers are much thicker/ arranged
irregularly, meaning run in
all directions
