Connective Tissue

adult tissue

irregularly arranged CT

dense irregular

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muscle attachments, fascia lata, and tendons

areolar (loose irregular)

CT cells

fiber and ground substance producers

fibroblasts

chondroblasts

osteoblasts

odontoblast

immunologic

plasma cell

eosinophil

macrophage

neutrophil

mast cell

basophil

special

regularly arranged dense CT

adipose

reticular

CT fibers

collagen

elastic

type I

type II

type III

type IV

matrix

supportive

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cartiledge

bone

joints

may be residents or wanderers

create extracellular fibers and ground substance

can remain quiescent

can de-differentiate to become other cell types

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resident cell

common in loose CT (skin, intestine, around blood vessels)

rich in histamine and heparin

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resident or immigrant

derive from blood monocytes

vacuolated

phagocytic, go where there is a mess

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immigrant

derived from B-lymphos in blood

often located in intestinal mucosa, uterus, lymphoid organs, sites of inflammation

wagon wheel appearance

produce antibodies

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most common in body

locations

dermis

fascia

bones

ligaments

tendons

organized into regular or irregular bundles

high tensile strength

reticular fibers

coated by proteoglycans and glycoproteins

needs silver stain

locations

beneath basal lamina

surrounds muscles

capillaries

nerves

adipose tissue

supports and binds cells

integral part of basement membrane

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locations

vocal cords

epiglottis

lungs

aorta

dermis

contains elastin

stretch up to 1.5-2.5x and return to original length

usually requires special stain

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ground substance

contain proteoglycans and glycoproteins

can retain a large amount of tissue fluid

makes up basement membrane, which is beneath all epithelia

does not organize into fibrils

colorless semi-fluid filling spaces between cells and fibers

basal laminae

type IV collagen

reticular lamina (type III collagen)

unilocular

multilocular (brown fat)

hibernating animals

neonates

multiple lipid droplets

multiple mitochondria for heat generation

central nucleus

peripheral nucleus

mostly composed of one large lipid droplet

most common adipose

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tendons

ligaments