functions of epithelial tissue
-provides physical protection
-controls permeability
-provides sensation
-secretes
characteristics of epithelial tissue
cellularity, polarity, attachment, avascularity, regeneration, sheets/layers
(does not have to apply to all types of epithelia)
CPAARS
classifications of epithelia
simple, stratified, squamous, simple cuboidal, stratified cuboidal, transitional epithelia, columnar epithelia, glands
what are the three main components of connective tissue?
special cells, extracellular protein fibers, ground substance
what makes up the matrix?
extracellular protein fibers and ground substance
what is matrix?
component of any connective tissue
plasma is what kind of tissue?
connective
functions of connective tissue
-establish the structural framework of the body
-transport fluid and dissolved materials
-protects organs
-support, surround, and connect other tissues
-store energy
-defend the body from microorganisms
what are the three types of connective tissue?
connective tissue proper, fluid connective tissue, supporting connective tissue
what are the two main sections of connective tissue proper?
loose and dense
what are the two main sections for fluid connective tissue?
blood and lymph
what are the two main sections of supporting CT?
cartilage and bone
what is the most common and strongest fiber?
collagen
what is type 3 collagen?
reticular fibers
what % of skin does collagen make up?
75%
Functions of loose connective tissue proper
-packing material
-binding material
-forms fascia and sheaths
arrangement of fibers gives strength and flexibility
-insulation
functions of connective tissue proper dense
-densely packed collagenous fibers running parralel to direction of force
-offers strength and flexibility
-forms the tendons and ligaments of the body
-has a silvery, white appearance
what are aponeuroses?
delta-shape, broad fat-like tendons
blood fluid connective tissue functions
contains a matrix, called plasma and various types of cells
lymph fluid connective tissue
formed as an interstitial fluid collected into lymphatic vessels to be brought back to the blood vessels
supportive connective tissue contains?
-few cells
-high amounts of fiber
a ground substance that may contain insoluble calcium salts
hyaline cartilage
-supportive CT
-most abundant
-avascular
-homogenous matrix produced by chondroblasts
fibrocartilage
-supportive connective tissue
-matrix reinforced by fibers
-adapted to withstand tension and compression forces
-forms menisci of knee, IVD’s, symphysis pubis joint
elastic cartilage
-abundant elastic fibers in matrix
-yellowish appearance
-provides flexibility
-found in the outer ear, larynx, auditory canal
