TissueTissue

An aggregation of cells and cell An aggregation of cells and cell products of similar structure and products of similar structure and embryonic origin that perform a embryonic origin that perform a

common functioncommon function

Basic Tissue TypesBasic Tissue Types

EpithelialEpithelial ConnectiveConnective MuscleMuscle NervousNervous

OrganOrgan

An aggregation of tissues An aggregation of tissues organized into a functional unitorganized into a functional unit

Epithelial TissueEpithelial Tissue

Sheet-like layer of cellsSheet-like layer of cells Cover surfaces or line cavitiesCover surfaces or line cavities Often has glandular cells for fluid Often has glandular cells for fluid

secretionsecretion EndotheliumEndothelium

Epithelium that lines heart, blood Epithelium that lines heart, blood vessels and lymphatic vesselsvessels and lymphatic vessels

Epithelial TissueEpithelial Tissue

Connective TissueConnective Tissue

Tissue that connects Tissue that connects Loose connective tissue Loose connective tissue

adipose (fat)adipose (fat) Dense connective tissue Dense connective tissue

cartilage cartilage BoneBone

Vascular tissueVascular tissue Erythrocytes: Red Blood Cells – carry oxygenErythrocytes: Red Blood Cells – carry oxygen Leucocytes: White Blood Cells – part of the immune Leucocytes: White Blood Cells – part of the immune

systemsystem Platelets - clottingPlatelets - clotting

CNNECTIVE TISSUECNNECTIVE TISSUE

Erythrocytes:Red Blood Cells

Muscle Tissue TypesMuscle Tissue Types

Smooth Muscle (=Involuntary Smooth Muscle (=Involuntary Muscle)Muscle) Ex. Small intestineEx. Small intestine

Skeletal Muscel (=Voluntary Muscle)Skeletal Muscel (=Voluntary Muscle) Ex. Large muscles of bodyEx. Large muscles of body

Cardiac Muscle Cardiac Muscle

Skeletal Smooth

Cardiac

Nervous TissueNervous Tissue

Includes Nerves, Spinal Cord, BrainIncludes Nerves, Spinal Cord, Brain Cells are called neuronsCells are called neurons

NeuronNeuron