General connective tissue is either loose, or dense
, depending on the arrangement of the fibres. The cells sit in a matrix made up of glycoproteins, fibrous proteins and glycosoaminoglycans, which have been secreted by the fibroblasts, and the major component of the matrix, is in fact, water.
How do loose and dense connective tissues differ?
Loose (areolar connective tissue) is the most abundant form of collagenous connective tissue. It occurs in small,
elongated bundles separated by regions that contain ground substance
. Dense connective tissue is enriched in collagen fibers with little ground substance.
What makes a connective tissue loose or dense?
Both tissues have a variety of cell types and protein fibers suspended in a viscous ground substance. Dense connective tissue
is reinforced by bundles of fibers that provide tensile strength, elasticity, and protection
. In loose connective tissue, the fibers are loosely organized, leaving large spaces in between.
What makes loose connective tissue?
Loose connective tissue consists of
a sparse extracellular matrix of hyaluronan and proteoglycans supported by a few collagen fibrils and elastic fibrils
. In addition to fibroblasts, the cell population is heterogeneous, including both indigenous and emigrant connective tissue cells (see Fig.
How do you identify loose connective tissue?
Loose connective tissue has some
fibroblasts
, although macrophages are present as well. Collagen fibers are relatively wide and stain a light pink, while elastic fibers are thin and stain dark blue to black. The space between the formed elements of the tissue is filled with the matrix.
What are the 3 types of loose connective tissue?
- Collagenous fibers are made of collagen and consist of bundles of fibrils that are coils of collagen molecules. …
- Elastic fibers are made of the protein elastin and are stretchable.
What are the similarities and differences between reticular and loose connective tissue?
6 pts Loose tissue Reticular tissue Both
Has elastic fibers Has reticular fibers Has fibroblasts Contains ground substance Regular
, mesh-like appearance under microscope Contains ground substance Has elastic fibers Has fibroblasts Has reticular fibers Variable appearance.
What are the 4 types of connective tissue?
There are four classes of connective tissues:
BLOOD, BONES, CARTILAGE and CONNECTIVE TISSUE PROPER
.
What is an example of loose connective tissue?
Examples of loose connective tissue include
areolar tissue and reticular connective tissue
.
What is the main function of dense connective tissue?
The main roles of dense CT are
to transmit forces over a distance and to connect different organs/muscles
. Collagen fibres are disposed along the direction of mechanical loads present in that specific tissue.
What are the 7 types of connective tissue?
- Cartilage. Cartilage is a type of supporting connective tissue. …
- Bone. Bone is another type of supporting connective tissue. …
- Adipose. Adipose is another type of supporting connective tissue that provides cushions and stores excess energy and fat. …
- Blood. …
- Hemapoetic/Lymphatic. …
- Elastic. …
- Fibrous.
Where can loose connective tissue be found?
Location. It may be found in
tissue sections from almost every part of the body
. It surrounds blood vessels and nerves and penetrates with them even into the small spaces of muscles, tendons, and other tissues. It may likewise be present in the mediastinal extremities.
Which of the following comes under loose connective tissue?
Areolar tissue
is a loose connective tissue that allows movements of parts connected by it. e.g., skin with muscles, internal organs.
What are the three general characteristics of connective tissues?
Connective tissue has three main components:
cells, fibers, and ground substance
. Together the ground substance and fibers make up the extracellular matrix.
What are the 3 main components of connective tissue?
Components of connective tissue
All forms of connective tissue are composed of
(1) extracellular fibres, (2) an amorphous matrix called ground substance, and (3) stationary and migrating cells
. The proportions of these components vary from one part of the body to another depending on the local structural requirements.
What are two factors that affect the consistency of connective tissue?
| What characteristics do all connective tissues share in common? They all develop from mesenchyme. | Identify at least 2 factors that affect the consistency of a connective tissue. Ground Substance (Water and Protein) and Fiber |
|---|
