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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
Images: Google, Yahoo, Jessica Rodriguez and Stephanie Meyer
Sound: Jessica Rodriguez
Music: “Weird Science” Oingo Boingo
Previous