Connective Tissue Flashcards
Cell types
fibroblasts, macrophages, plasma cells, mast cells, adipocytes
fibroblasts
secrete fibers and ground substance
macrophages
eat things
plasma cells
secrete antibodies
mast cells
produce histamines that dilate small blood vessels
adipocytes
fat cells, support, protect, insulate
Matrix fibers
collagen, elastic, reticular
collagen
large, most abundant, good for flexibility
elastic
medium, made of elastin, good for stretch and recoil
reticular
small, delicate, made of same protein as collagen, forms structural framework
Ground substances
hyaluronic acid, chondroitin sulfate
hyaluronic acid
elmer’s glue
chondroitin sulfate
rubber cement
true connective tissue
actually connects things together
supportive connective tissue
physically supports and holds your body up
liquid connective tissue
blood
true connective tissue types
loose and dense
Loose tissue types
areolar, adipose, reticular
areolar
all three fibers, found under every epithelium, good for strength, support, and elasticity
adipose
made of adipocytes, fat, looks like large bubbles, supports, protects, insulates,
reticular
reticular fibers, found in liver, spleen, and lymph nodes, rough out shape of organs
Dense connective tissue types
dense regular, dense irregular
Dense regular
collagen, all fibers in straight line
dense regular examples
tendons, ligaments
tendons
muscle to bone
ligaments
bone to bone
dense irregular
collagen, multiple directions
dense irregular examples
skin dermis, fascia, heart valves
supportive connective tissue
cartilage, bone
types of cartilage
hyaline, fibrocartilage, elastic
cartilage made of
chondroitin sulfate and fibers, looks like it has a lot of small bubbles (lacunae)
hyaline
most abundant, made of collagen
hyaline function
flexible, allows movement at joints
hyaline found in
embryonic skeleton, ends of long bones, nose and respiratory structures
hyaline identification
tiny bubbles, looks like no fibers
fibrocartilage
bundles of collagen
fibrocartilage function
support, absorb shocks
fibrocartilage found in
intervertebral discs, menisci of knee, pubic symphysis
fibrocartilage identification
bubbles, fibers you can see
elastic cartilage
network of elastic fibers, most rare
elastic cartilage function
give support, maintain shape, allow flexibility
elastic cartilage found in
external ear, auditory tubes, epiglottis
elastic cartilage identification
long black elastic fibers