CHAPTER 5: CONNECTIVE TISSUE Flashcards
provides a matrix that supports and physically
connects other tissues and cells together to form the
organs of the body
Connective Tissue
major constituent is the extracellular matrix (ECM)
which consist of protein fibers and ground
substance
Connective Tissue
originate from embryonic mesenchyme,
o Structure components consist of: Cells, Fibers,
Ground substance
Connective Tissue
What are the major constituent of connective tissue?
extracellular matrix (ECM)
Connective tissue structure components?
: Cells, Fibers,
Ground substance
a tissue developing mainly from the middle layer of the embryo
Mesenchyme
the most common cells in connective tissue proper
Fibroblast
produce and maintain most of the tissue’s
extracellular components
- Fibroblast
the key cells in connective tissue proper
- Fibroblast
originate locally from mesenchymal cells and are
permanent residents of connective tissue.
- Fibroblast
Synthesize and secrete collagen
Fibroblast
What are the type cells that is found from hematopoietic stem cells?
macrophages, plasma cells, and mast cells
“fibroblast”
o abundant and irregularly branched cytoplasm,
Active Fibroblast
Ovoid nucleus, large and pale staining w/ fine
chromatin
o Larger cell
o Euchromatic nucleus
Active Fibroblast
“fibrocyte”
o smaller than the active fibroblast
Quiescent Cell
acidophilic cytoplasm
o a darker, elongated, more heterochromatic nucleus
o smaller spindle shape
Quiescent Cell
Active Chromatin
* Pale Stain
EUCHROMATIN
Inactive Chromatin
* Darker Stain
HETEROCHROMATIN
Give the growth factors list
A family of protein
o Targets fibroblast
o influence cell growth and differentiation
involved in wound healing
o have a well-developed contractile function
and are enriched with a form of actin also
found in smooth muscle cells.
Myofibroblast
Also from Mesenchymal
o “fat cell”
o found in the connective tissue of many organs
- Adipocyte
specialized for cytoplasmic storage of lipid as
neutral fats, or for the production of heat.
Adipocyte
Nucleus pushed to the side
o White and Brown adipocyte
Adipocyte
Tissue with a large population of
adipocytes
o serves to cushion and insulate the
skin and other organs
Adipose Connective Tissue
have highly developed phagocytic ability and
specialize in turnover of protein fibers and removal
of apoptotic cells, tissue debris, or other particulate
material, being especially abundant at sites of
inflammation.
- Macrophages
Derived from Monocyte
o Also called “Histiocyte”
Macrophages
Perform phagocytosis
o Many Lysosomes, over developed golgi
o Irregular edge or protrusions
o Distinct nucleus
Macrophages
Another name for macrophages?
Histiocyte
MAJOR LOCATION: MONOCYTE
BLOOD
MAJOR LOCATION: MACROPHAGE
CONNECTIVE TISSUE
MAJOR LOCATION: KUPFFER CELL
LIVER (PERISINUSOIDAL)
MAJOR LOCATION: OSTEOCLAST
BONE
MAJOR LOCATION: MICROGLIAL CELL
CENTRAL NERVOUS SYSTEM
MAJOR LOCATION: LANGERHANS CELL
EPIDERMIS OF SKIN
MAJOR LOCATION: DENDRITIC CELL
LYMPH NODES
MAJOR LOCATION: MULTINUCLEAR GIANT CELL
CONNECTIVE TISSUE UNDER A PATHOLOGICAL CONDITIONS
are large oval or irregularly shaped cells of
connective tissue
Mast Cell
Blue color due to many basophilic granules which
contains heparin
Mast Cell
Function for inflammatory and tissue repair
o Release bioactive substances
Mast Cell
What type cell does undergo metachromasia?
Mast Cell
means that they can change the color of some basic
dyes from blue to purple or red.
metachromasia
a sulfated GAG that acts locally as an anticoagulant
Heparin
promotes increased vascular permeability and
smooth muscle contraction
Histamine