Summary
Summary Connctive Tissue
- Course
- Institution
this documes has a very well detailed explenation out the conective tissue , types and features, include diagramas, images among othe things
[Show more]
Seller
Follow
laupeb
Content preview
Week 4TissueConnective CTL
Tissue Histology I.
(Epithelia & Connective, Muscle, Nervous)
#2. Connective Tissue:
- Found everywhere in the body
- Most abundant primary tissue
- 4 Classes of Connective Tissue: (see latter pages)
o Connective tissue proper
o Cartilage
o Bone
o Blood
- 4 Major Functions:
o Binding / Support
o Protection
o Insulation
o Transportation (blood)
- Common Characteristics:
o Common Origin
§ All arise from mesenchyme (embryonic tissue)
o Degrees of vascularity
§ Avascular (cartilage)
§ Poorly vascular (dense connective tissue)
§ Rich blood supply.
o Largely nonliving:
§ Connective tissue is made up largely of non-living extracellular matrix.
§ Some sparse living cells.
§ Can therefore bear weight, withstand tension, trauma & abrasion.
www.MedStudentNotes.com
, - Structural Elements:
o Extracellular matrix
§ Ground Substance
• Unstructured interstitial (tissue) fluid.
• Cell adhesion proteins (laminin & fibronectin) – allows connective tissue cells
to attach to matrix elements.
• Proteoglycans – trap water, making it more viscous (varying degrees.)
• Functions as a molecular sieve – nutrients diffuse between blood capillaries
and cells.
§ Fibres
• Collagen Fibres (white fibres)
o Constructed of the fibrous protein “Collagen”
o Found in all connective tissues
o Small cross-linked fibrils bundle together into thick collagen fibres.
o Are extremely tough – high tensile strength
• Elastic
o Long, thin fibres forming branching networks
§ Contain a rubberlike protein, elastin.
o Allow for stretch and recoil (skin, lungs, blood-vessels)
• Reticular
o Collagenous fibres that form delicate networks
o Surround blood vessels & support soft tissue of organs.
o Particularly common where connective tissues meet other tissue
types. (basement membrane of epithelial cells)
o Cells
§ Make up connective tissue once matured (blasts = immature, cytes = mature)
§ Fibroblasts – Connective tissue proper
§ Chondroblasts – Cartilage tissue
§ Osteoblast – Bone
§ Hematopoietic Stem cells – Blood
§ White blood cells, plasma cells, macrophages, mast cells.
www.MedStudentNotes.com
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller laupeb. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75323 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now