Basic Histology Flashcards
Type of tissue for LINING and COVERING
Epithelial Tissue
Type of tissue for MOVEMENT
Muscle tissue
Type of tissue for SUPPORT
Connective tissue
Group of functionally related cells that work together
Tissues
Special characteristics of epithelia wherein epithelial tissues always have an APICAL and BASAL surfaces
Polarity
Type of tissue that forms most glands
Epithelial tissue
Enumerate the Special characteristics of epithelia
Cellularity Specialized contacts Polarity Support by connective tissue Avascular Inmervated Regeneration
Special characteristics of epithelia that may have junctions for both ATTACHMENT and COMMUNICATION
Specialized contacts
Type fo tissue for CONTROL
Nervous tissue
Enumerate the types of tissues
Epithelial
Connective
Muscle
Nervous
Type of tissue that COVERS a body surface and LINES a body cavity
Epithelial tissue
Special characteristics of epithelia wherein at the basal surface, both epithelial tissue and connective tissue contribute to the basement membrane
Support by connective tissue
Special characteristics of epithelia wherein the CELLS ARE IN CLOSE CONTACT WITH EACH OTHER with little or no intercellular spaces between them.
Cellularity
This type of tissue functions as protection, for absorption secretion and ion transport, filtration and forms slippery surfaces.
Epithelial tissue
Special characteristics of epithelia
Innervated
Enumerate the factors holding epithelial cells together
ADHESION PROTEINS link plasma membranes of adjacent cells
CONTOURS of adjacent cell membranes
Enumerate the functions of Epithelial tissue
protection
absorption secretion and ion transport
filtration
forms slippery surfaces.
Enumerate special cell junctions
Tight junctions
Adherens junctions
Desmosomes
Lateral surface feature
Cell junction
Special characteristics of epithelia wherein NUTRIENTS MUST DIFFUSE
Avascular
Also known as ZONA OCCLUDENS
Tight junctions
This cell junction close off INTERCELLULAR SPACE
Tight junctions (zona occludens)
This cell junctions are found at the APICAL region of most epithelial types
Tight junctions
In this cell junction, some proteins in plasma membrane of adjacent cells are FUSED
Zona occludens
This type of cell junction along with tight junctions, form tge TIGHT JUNCTIONAL COMPLEX around the apical lateral borders of epithelial tissues
Adherens junctions
This cell junctions preven molecules from passing between cells of epithelial tissue
Tight junctions
In this cell junction, the transmembrane linker proteins attach to actin microfilaments of the cytoskeleton and BIND ADJACENT CELLS
Adherens junctions
Cell junctions also known as ZONULA ADHERENS
Adherens junctions
Are two disc-like plaques connected across intercellular space
Desmosomes
Proteins that join the plaques of adjoining cells
Cadherins
This is the ANCHORING JUNCTION
Adherens junctions
In this cell junction the intermediate filament insert into plaques from cytoplasmic side
Desmosome
This is the passageway between two adjacent cells
Gap junctions
This cell junction let small molecules move directly between neighboring cells
Gap junctions
Basal feature
Basal lamina
In this cell junction the cells are connected by HOLLOW CYLINDERS of protein
Gap junctions
In this cell junction the PROTEINS INTERDIGITATE into extra cellular space
Desmosomes
Is a non cellular SUPPORTING SHEET between epithelium and the connective tissue deep to it
Basal lamina
This indicates the number of layers
First name
One layer of cells
Simple
First name indicates the ________
Number of layers
More than one layer of cells
Stratified
This consists of proteins secreted by epithelial cells
Basal lamina
Cells are WIDER than tall
Squamous
Acts as a SCAFFOLDING along which regenerating epithelial cells can migrate
Basal lamina
Plate of scale like cells
Squamous
This describes the SHAPE of cells
Last name
This acts as a SELECTIVE FILTER, determining which molecules from capillaries enter the epithelium
Basal lamina
Cells are TALLER than they are wide
Columnar
Slick lining of HOLLOW ORGANS
Endothelium
Column -like cells
Columnar
Cells are AS WIDE as they are TALL
Cuboidal
Special epithelial tissues that don’t follow naming convention
Pseudo stratified
Transitional
Single layer of FLAT cells with DISC SHAPED nuclei
Stratified squamous epithelium
Cells as in cubes
Cuboidal
Enumerate the accessory structures of tissues
Goblet cells
Cilia
Keratin
Special types of simple squamous epithelium
Endothelium
Mesothelium
Covers the visceral organs of the peritoneal, pleural, and pericardial cavities
Mesothelium
Inner covering
Endothelium
Secretes lubricating substances in the serosae
Simple squamous epithelium
Found in the renal corpuscles, alveoli of lungs, lining of heart, blood and lymphatic vessels, and lining of ventral body cavity (serosae)
Simple squamous epithelium
What forms the basement membrane
Basal lamina and reticular fibers found on the connective tissue
Lines the peritoneal, pleural, and pericardial cavities
Mesothelium
Middle cover
Mesothelium
Functions in absorption, secretion of mucus, enzymes, and other substances
Simple columnar epithelium
This act as the passage of materials by PASSIVE DIFFUSION and FILTRATION
Simple squamous epithelium
Enumerate the locations where simple squamous epithelium can be found
renal corpuscles
alveoli of lungs
lining of heart, blood and lymphatic vessels
lining of ventral body cavity (serosae)
Non ciliated form of this epithelium lines the digestive tract, gallbladder, and ducts of some glands
Simple columnar epithelium
This epithelium is located in the kidney tubules, secretory portions of small glands, ovary, and thyroid follicles
Simple cuboidal epithelium
SINGLE layer of COLUMN SHAPED (rectangular) cellss with OVAL nuclei
Simple columnar epithelium
Cilitiated type of this epithelium PROPELS MUCUS or reproductive cells by ciliary action
Simple columnar epithelium
Functions in the SECRETION of MUCUS and PROPULSION OF MUCUS by cilia
Pseudostratified Columnar epithelium
Regenerate from below
Stratified epithelia
SINGLE layer of CUBE LIKE cells with LARGE, SPHERICAL CENTRAL NUCLEI
Simple cuboidal epithelium
All cells originate from the basement membrane
Pseudostratified Columnar epithelium
This epithelium functions for secretion and absorption
Simple cuboidal epithelium
Names according to the SHAPE of cells in the APICAL layer
Stratified epithelia
Non ciliated type of this epithelium is located in the ducts of male reproductive tubes and ducts of large glands
Pseudostratified Columnar epithelium
Ciliated form of this epithelium lines the small bronchi, uterine tubes and uterus
Simple columnar epithelium
Only tall cells reach the apical surface
Pseudostratified Columnar epithelium
Deeper layers of cells appear cuboidal or columnar
Stratified squamous epithelium
Major role is for PROTECTION
Stratified epithelia
Forms moist lining of body openings
Non keratinized
Protects underlying tissues in areas subject to abrasion
Stratified squamous epithelium
Nuclei lie at varying heights and within cells that gives false impression of stratification
Pseudostratified Columnar epithelium
Contains the protective protein keratin
Keratinized
Contains two or more layers of cells
Stratified epithelia
Thickest epithelial tissue (adapted for protection)
Stratified squamous epithelium
Are dead and full of keratin
Surface cells
Basal cells that are usually cuboidal or columnar
Transitional epithelium
Enumerate the specific types of Stratified squamous epithelium
Keratinized
Non keratinized
Enumerate the diverse glands of glandular epithelium
Mucus secreting Sweat and oil Salivary Liver and pancreas Mammary
This specific type of Stratified squamous epithelium forms the epidermis
Keratinized
Ciliated variety of this epithelium lines the trachea and most of the upper respiratory tract
Pseudostratified Columnar epithelium
May contain goblet cells and bear cilia
Pseudostratified Columnar epithelium
This specific type of Stratified squamous epithelium forms the lining of ESOPHAGUS, MOUTH, and VAGINA
Stratified squamous epithelium