Connective Tissue Flashcards
Matrix
a space in between cells made of ground substance and fibers
Functions of connective tissue
bind structures, provide protection, support, and framework, make blood, store fat, fight against infections and repair tissues
Cell types
Fibroblasts
Macrophages
Masts
Fibroblasts
cells that make fibers
Are most abundant
Large and star shaped
Fixed position
Macrophages
eat unwanted stuff in the cell
Mast cell
release heparin and histamine
Heparin
anti-coagulent
Histamine
inflammatory agent
Types of fibers
Collagenous
Elastic
Reticular
Collagenous
made of collagen and is very strong. found in ligaments and cartilage
Elastic
made of elastin and is very stretchy. Found in vocal cord and lungs
Reticular
made of thinner collagen. found in basement membrane and soft organs like kidneys and livers
Connective Tissue Proper
Loose connective tissue
Reticular connective tissue
Adipose
Dense connective tissue
Elastic connective tissue
Loose connective tissue
Forms thin membranes between organs
Is found beneath the skin, basement membrane, and muscles
Made of collagen and elastin but has a few fibers
Wrapped around organs
Reticular connective tissue
made of reticular fibers
supports soft internal organ walls (spleen, kidney, liver)
Holds blood in the organ
Adipose
stores fat
is a cushion and is underneath the heart, eyes, skin, and kidneys
insulates
Elastic connective tissue
Has a lot of elastic fibers
Around joints
Connects vertabrae
Has some collagenous fibers and fibroblasts
Walls of large arteries, hearts, and airways
Dense connective tissue
Made of strong collagen fibers
Found in tendons, ligaments, white portions of eyes, and deep layer of the skin
Avascular
Has a few fibroblasts
Bone
Very vascular
Makes blood cells
Made of calcified salt
Supports and protects the body
Provides attachment for tendons, muscles, and ligaments
Osteocytes located in lacunae
Lacunae
pockets in a matrix that contain chondrocytes (cartilage) or osteocytes (bone)
Blood
Carries oxygen, carbon dioxide, wastes, hormones, nutrients
Made up of cells
Matrix is plasma
Erythrocytes
red blood cells
Leukocytes
white blood cells
Thrombocytes
platelets
Cartilage
protects joints and bones and is a shock absorber
has no blood or nerves
Very tough
Rigid matrix
Avascular
Chondrocytes
cartilage cells
Hyaline cartilage
Most common type
Looks like glass
Has collagen fibers
Elastic cartilage
Made mostly of elastin
Strength and strechability
Example of elastic cartilage
lining of the ear
Example of hyaline cartilage
On the tip of nose
Connectes the rib to the sternum
Fibrocartilage
Is a shock absorber
Very tough
Example of fibrocartilage
Around joints and intertabrael discs
