L11 Flashcards
____ common tissue of origin
Mesenchyme
Most abundant tissue type
Connective tissue
T/F: connective tissues have Varying degrees of vascularity 
T
Nonliving extracellular part of the connective tissue consists of
Ground substance and fibers
Why does the connective tissue have no contact with the environment
Because epithelial tissues is a barrier between them
Mention the four functions of connective tissues
Connects epithelium to the rest of the body
provides structure
stores energy
transports material
What are the three elements of the connective tissues
Ground substance, fibers, cells
What are the three types of fibers
Collagen, elastic, reticular
Are the most abundant cell type in all proper connective tissues
Fibroblasts
Secretes protein and hyaluronic acid
Fibroblasts
Large amoeba like cells of the immune system, eat pathogens and damage cells
Macrophages
Adipocytes cells, each cell stores how many fat dropped it
One large fat droplet
Stem cells that respond to injury or infection
Mesenchymal Cells
Differentiate into fibroblasts, macrophages and others
Mesenchymal Cells
Stimulates inflammation after injury or infection
Mast cells
Release histamine and heparin
Mast cells
Secretes plasma cells and antibodies
Lymphocytes
Phagocytic blood cells, respond to macrophages and mast cells
Microphages
Include neutrophils and eosinophils
microphages
What are the primary connective tissues
Connective tissue proper,
supportive CT cartilage and bone,
fluid CT blood
What type of connective tissue fibers is thick
[Collagenous, Elastic, reticularis]
C
What type of connective tissue fibers Has great tensile strength
[Collagenous, Elastic, reticularis]
C
What type of connective tissue fibers is Abundant and dense connective tissue
[Collagenous, Elastic, reticularis]
C
What type of connective tissue fibers holds structures together
[Collagenous, Elastic, reticularis]
What type of connective tissue holds structures together
[Collagenous, Elastic, reticularis]
C
R
What type of connective tissue fibers is Wonders of microfibrils embedded in elastin
[Collagenous, Elastic, reticularis]
E
What type of connective tissue fibers is branched
[Collagenous, Elastic, reticularis]
En is less branched the R
What type of connective tissue fibers is elastic
[Collagenous, Elastic, reticularis]
E
What type of connective tissue fibers is very thin collagenous fibers
[Collagenous, Elastic, reticularis]
R is thinner that E
What type of connective tissue fibers is highly branched
[Collagenous, Elastic, reticularis]
R
What type of connective tissue fibers forms supportive Network
[Collagenous, Elastic, reticularis]
R
What type of connective tissue fibers Acts as a supporting mesh and soft tissues
[Collagenous, Elastic, reticularis]
R
What type of connective tissue fibers is found in Tendons and ligaments
[Collagenous, Elastic, reticularis]
C
What type of connective tissue fibers is found in Vocal cords and air passage
[Collagenous, Elastic, reticularis]
E
What type of connective tissue fibers is found in Liver, bone marrow, in lymphatic system
[Collagenous, Elastic, reticularis]
R
What is the difference between multiocular adipocyte and uniocular adipocyte ?
1- has small fat droplets and mainly in infants
2-has one big fat droplet, usually in adults 
When will Mesenchyme have a prominent nuclei
Why is the cell is dividing, active
Found only in the umbilical cord
Mucous ct
Ground substance of mucus tissue is composed of
Hyaluronic acid
Mention the differences between fibroblast and fibrocyte
Blast:
Abundant, branched cytoplasm
prominent nucleus
rich in ER and Golgi and mitochondria
Cyte:
The opposite
What are the two types of adipose tissue
Unilocular (White Fat)
• Multilocular (Brown)
What is the function of white adipose
Energy storage, insulation, cushioning of vital organs
What type of adipose tissue is found in Hypodermis, buttocks, abdomen, thighs, omentum, miss entry
White adipose
Multiocular adipose tissue make up % of the body weight
2-5
___ produce heat, while ___insulate heat 
Brown adipose
White adipose
What are the two types of connective tissue proper
Loose and dense
Loose connective tissue has
Less Fibers
More cells and GS
Where is the loose connective tissue found
Riticular adipose areolar
Where is the regular dense connective tissue found
Tendons 
Dense connective tissue has
More fibers
less cells and ground space
What are the subcategories of loose connective tissues
areolar, reticular /adipose
What are the sub categories of dense connective tissues
regular , irregular, elastic
This type of subcategory of CT is The least specialized
Areolar
This type of subcategory of CT is Contains all the cell types and fibers
Areolar
This type of subcategory of CT holds blood vessels and capillaries
Areolar
Most common, stores fat, slows heat loss/insulation
White fat
Most common, stores fat, slows heat loss/insulation
White part
More vascularized, breaks down fat and produces heat
Brown fat
Support to fibers/stroma
– Reticular Tissue
Found in the spleen, liver, lymph nodes, and bone marrow
– Reticular Tissue
Gelatinous GS
Areolar
Has All three types of fibers present
Areolar CT
Cell types in areolar (5)
Fibroblast
Plasma cells
Wbcs
Macrophages
Mast cells
What is responsible for heat generation in adipose tissues
Mitochondria
Network of fibers and cells that produce framework of organs
Reticular ct
Who is organs together
Reticular ct
What are the 3 types of dense ct
Reg
Irreg.
”elastic
Collagen fibers are in parallel with fibroblasts
Regular dense connective tissue
Collagen fibers are irregularly arranged
Irregular dense connective tissue
Aka white fibrous connective tissue
Dense regular connective tissue
Tissue can resist tension from any direction
Irregular dense connective tissue
Very tough tissue, is it irregular or regular dense connective tissue
Irregular
Elastin and collagen is in Irregular, regular, or elastic dense connective tissue?
Elastic
In elastic dense connective tissue, elastin is for while collagen is for
Elasticity, strength
Which is richer in collagen irregular or elastic dense connective tissue
Irregular
Most common, white or brown fat
White
