4 main groups Epithelial,

Connective, Muscle, Nerve

Histology Similar in structure

and function

Connective Epithelial Muscular Nervous Credits

4 main types- Bone, Cartilage, Connective Proper, Blood

Most widely distibuted

Main functions- Protect, support, bind other tissues

Bone Cartilage Proper Blood Epithelial Previous

Rocklike hardness Protects body

structures Also known as

Osseous Tissue Supports and

protects the body

Cartilage Proper Blood Connective Previous

Tough but flexible Lacks nerve fibers Can become up to

80% water Provides a resilient

rigidity to the structures it supports

Bone Proper Blood Hyaline Fibrocartilage Elastic Connective Previous

Hyaline Cartilage

Most abundant cartilage in the body

Matrix appears amorphous and glassy

Provides firm support with pliability

Fibrocartilage Elastic

Cartilage Previous

Fibrocartilage Cartilage

Perfect structural intermediate between hyaline cartilage and connective tissue

Found where strong support and heavy pressure occur

Hyaline Elastic

Cartilage Previous

Elastic Cartilage

Nearly identical to hyaline cartilage

Found where strength and stretchability occur

Forms the ear and epiglottis

Hyaline Fibrocartilage

Cartilage Previous

2 main types – Loose, Dense

Contains majority of mature connective tissue

Bone Cartilage Blood Connective Dense Loose Previous

2 main types - Regular, Irregular

Dense Fibrous Tissue

Main matrix – Collagen Fibers

Loose Regular Proper Irregular Previous

Main element is fibers

Fibrous connective tissue

Contains closely packed bundles of collagen fibers

Irregular Loose Dense Previous

Bundles much thicker

Found in the skin Forms fibrous joint

capsules and the fibrous coverings that surround organs

Regular Loose Dense Previous

3 main types – Areolar, Adipose, Reticular

Holds organs and epithelial in place

Dense Areolar Adipose Reticular Proper Previous

Branching cells – spindle shaped

Loose arrangement of fibers

Provides reservoir of water and salts for the body

Adipose Reticular Loose Previous

Stores great amount of nutrients

Fat cells account for up t0 90% of the tissues mass

Richly vascularized

Areolar Reticular Loose Previous

Resembles areolar tissue

Widely distributed throughout the body

Supports free blood cells

Adipose Areolar Loose Previous

Most atypical connective tissue

Consists of blood cells

Surrounded by a nonliving fluid matrix called blood plasma

Bone Cartilage Proper Connective Previous

2 main groups- Simple, Stratified

Covers external body

Lines its cavities and tubules

Protection, absorption, filtration, excretion, secretion

Stratified Simple Muscular Previous

Consists of 2 or more cell layers

High abrasion areas Polyhedral shape Protection- more

durable

Cuboidal/Columnar Squamous Transitional Epithelial Previous

Boxlike/tall and column shaped

Nucleus spherical/elongated

Rare in the body

Transitional Squamous Simple Stratified Previous

Most widespread epithelial tissue

Several layers Thick for protection

Transitional Cuboidal/Columnar Stratified Previous

Forms lining of hollow urinary organs

Cells of basal layers are cuboidal or columnar

Apical cells vary in appearance

Cells have ability to change shape

Cuboidal/Columnar Squamous Stratified Previous

Single layer Absorption,

filtration, secretion Very thin

Cuboidal Pseudostratified Squamous Columnar Epithelial Previous

Single layer of cells Boxlike shape Spherical darkly

stained nuclei Resembles string of

beads Secretion and

absorption

Pseudostratified Squamous Columnar Simple Previous

Single layer Functions –

Secretion, propulsion of mucus by ciliary

Cells in basement membrane

False impression that there are several layers

Cuboidal Squamous Columnar Simple Previous

Single layer Flattened cells Cytoplasm is sparse Cells resemble tiled

floor Filtration, exchange

of substances by rapid diffusion

Cuboidal Pseudostratified Columnar Simple Previous

Single layer Tall column cells Lines the digestive

tract from stomach through the rectum

Absorption, secretion

Cuboidal Pseudostratified Squamous Simple Previous

3 types- Skeletal, Cardiac, Smooth

Highly cellular Well vascularized Responsible for

movement

Cardiac Smooth Skeletal Nervous Previous

Involuntary muscular tissue

Found in walls of heart

Propels blood through blood vessels

Cells are striated

Smooth Skeletal Muscular Previous

Involuntary muscular tissue

Cells have no visible striations

Spindle shaped w/ 1 central nucleus

Found in hollow walls or organs

Cardiac Skeletal Muscular Previous

Voluntary muscular tissue

Attached to bones of the skeleton

Muscles form flesh of the body

Has tissue sheets called Skeletal Muscles

Cardiac Smooth Muscular Previous

Main component of nervous system

Regulates and controls body functions

Contains neurons

Tissues Previous

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Sound: Jessica Rodriguez

Music: “Weird Science” Oingo Boingo

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