Connective Tissuie Review

Name/Type Description Picture Function/Location

Areolar / Description: Gel-like matrix with all three fiber types; cells: fibroblasts, macrophages, mast cells, and some white blood cells / / Location: Widely distributed under epithelia of body, e.g., forms lamina propria of mucous membranes (basement membrane); packages organs; surrounds capillaries.
Binds, connects, and provides support for tissues and organs throughout the body. Packing Peanuts of the body!
Adipose / Matrix as in areolar, but very sparse; closely packed adipocytes, or fat cells, have nucleus pushed to the side by large fat droplet. / / Provides reserve food fuel; insulates against heat loss; supports and protects organs
White Fat more common in adults.
Brown Fat in babies to provide warmth, cannot shiver to generate heat.
Under skin, around heart, kidneys, in abdomen.
Reticular / Network of reticular fibers in a typical loose ground substance; reticular cells lie on the network.
Reticular cells are fibroblasts that make, you guessed it, reticular fibers. / / Fibers form a soft internal skeleton (stroma) that supports other cell types including white blood cells, mast cells, and macrophages.
Lymphoid organs (lymph nodes, bone marrow, and spleen).

Name/Type Description Picture Function/Locations

Dense Regular / Primarily parallel
collagen fibers; a few elastic fibers;
major cell type is the fibroblast. Mostly cells, poorly vascularized.
Great Tensile strength, when pulling force is applied in one direction.
Paper Towel Fiber Demo / / Attaches muscles to
bones or to muscles; attaches
bones to bones;
Tendons
Most Ligaments
Aponeuroses
.
Dense Irregular / Primarily irregularly
arranged collagen fibers; some
elastic fibers; fibroblast is the
major cell type. / / Withstands tension
exerted in many directions;
provides structural strength.
Fibrous capsules of
organs and of joints; dermis of theskin; submucosa of digestive tract
Elastic CT
Hyaline Cartilage / Dense regular
connective tissue containing a
high proportion of elastic fiber
Elastic Rubber Band demo
Amorphous but firm
matrix; collagen fibers form animperceptible network;chondroblasts produce the matrixand when mature (chondrocytes)lie in lacunae maintain the matrix.
Avascular Lack nerves
Tough yet flexible /
/ Walls of large arteries;
within certain ligaments associatedwith the vertebral column; withinthe walls of the bronchial tubesAllows tissue to recoik; bloodflow through arteries; aids in recoil of bronchial tubes
Supports and reinforces;
serves as resilient cushion; resistscompressive stress.
Forms embryonic skeleton
Nose Trachea Costal Cartilage of ribs
End of long bones at joints, most common type of cartilage.
Elastic Cartilage / Similar to hyaline
cartilage, but more elastic fibersin matrix.
In general more chondrocytes than hyaline. / / Maintains the shape of
a structure while allowing great
flexibility.
Ear Epiglottis
Fibrocartilage / Matrix similar to but
less firm than that in hyaline
cartilage; thick collagen fiberspredominate.
Sort of a cross between dense regular and hyaline cartilage. / Find something on the internet.
Google it.
Check the website later.
Bring in a picture for a bonus point. / Tensile strength allows
it to absorb compressive shock. The shock absorbers of the body and thus found in the intervertebral discs (between the backbones) in the knee joint, and the pubic symphysis joining the hip bones.

Connective Tissuie Review

Name/Type Description Picture Function/Locations

Bone / Hard, calcified
matrix containing many collagen
fibers; osteocytes lie in lacunae.
Very well vascularized. / / Support, protect, and work with muscles for movement. Produce red blood cells to in its marrow!
Well, bones! Throughout the skeletal system.
Blood / Red and white blood
cells in a fluid matrix (plasma).
Lacks fibers.
WBC’s (purple/blue cells)
RBC’s (well, red more numerous)
Special Type of CT
Fluid Group / / Transport respiratory
gases, nutrients, wastes, and othersubstances.
Found within blood vessels throughout the body.