Histology Practical Study Guide

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Simple squamous epithelium Location here (What is this organ?) Name the cavities in this view that are lined by this epithelium General function of this epithelium Name two other locations where this epithelium could be found Lung Alveolus Rapid diffusion of gases + transport of substances through membrane Inner lining of heart & blood vessels, serous membranes of stomach, intestines Simple cuboidal epithelium Location here (What is this organ?) Name one other location this type could be found List two specific functions of this epithelium 3 types of active transport that could be included in this epithelium's function Kidney Liver, thyroid, bronchioles Secretion, absorption (and reabsorption) Uniport, antiport, symport Simple columnar epithelium, non-ciliated Name three possible locations this epithelium could be found Two functions of this epithelium: What is the opaque, lighter appearing cell in this epithelium? How is the apical surface of this epithelium modified (name and function) What type of protein is incorporated in the above structure? Stomach, small intestine, large intestine, gallbladder, uterus Absorption of nutrients, secretion of enzymes & mucus Goblet cells Microvilli (brush border) - helps increase surface area Microfilaments (actin) Pseudostratified epithelium Name two possible locations this epithelium could be found Structures at apical surface of this epithelium Type of protein incorporated in the above structures. Two functions of this epithelium How can this be distinguished from other simple epithelium Trachea, nasal cavity, epididymis, male urethra Cilia Tubulin Secretes mucus, propels mucus Nuclei appear at different levels and not in a row Histology Practical Study Guide 1

description

anatomy

Transcript of Histology Practical Study Guide

Page 1: Histology Practical Study Guide

Simple squamous epithelium Location here (What is this organ?)

Name the cavities in this view that are lined by this epitheliumGeneral function of this epithelium

Name two other locations where this epithelium could be found

LungAlveolusRapid diffusion of gases + transport of substances through membraneInner lining of heart & blood vessels, serous membranes of stomach, intestines

Simple cuboidal epitheliumLocation here (What is this organ?)

Name one other location this type could be foundList two specific functions of this epithelium

3 types of active transport that could be included in this epithelium's function

KidneyLiver, thyroid, bronchiolesSecretion, absorption (and reabsorption)Uniport, antiport, symport

Simple columnar epithelium, non-ciliatedName three possible locations this epithelium could be found

Two functions of this epithelium:What is the opaque, lighter appearing cell in this epithelium?

How is the apical surface of this epithelium modified (name and function)What type of protein is incorporated in the above structure?

Stomach, small intestine, large intestine, gallbladder, uterusAbsorption of nutrients, secretion of enzymes & mucusGoblet cellsMicrovilli (brush border) - helps increase surface areaMicrofilaments (actin)

Pseudostratified epitheliumName two possible locations this epithelium could be found

Structures at apical surface of this epitheliumType of protein incorporated in the above structures.

Two functions of this epitheliumHow can this be distinguished from other simple epithelium

Trachea, nasal cavity, epididymis, male urethraCiliaTubulinSecretes mucus, propels mucusNuclei appear at different levels and not in a row

TransitionalIs this epithelium simple or stratified?

List two possible locations this epithelium could be foundFunction of this epithelium

Type of junctions between cells and function of these junctionsHow can this be distinguished from other multilayered epithelia?

Stratifiedbladder, ureters, and part of umbilical cordPermits distension(stretches to allow shape change as in filling of bladder)Tight junction, to be waterproof.Cells can change shape (layers of round cells > very thin layers)

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Stratified squamous epithelium, non-keratinizedName two possible locations for the epithelium shown here.

Type of membrane at base of all epitheliumFunction of this epithelium

Is this epithelium water tight? How do you know?

Mouth, tongue, oral mucosa, anal cavity, vaginaBasement membraneResists abrasion and resists penetration from pathogenic organismsNo, no layer of keratinized cells

Stratified squamous epithelium, keratinizedBottom layer of cells in the epithelium

What cellular junction accounts for the spiny looking cells in the second layer?Protein that makes this epithelium water tight?

Clear area between living and dead cellsTop layer of dead cellsLast layer of living cells

Pigment cells in bottom layerName of the individual cells in this epithelium

Stratum basaleDesmosomesKeratinStratum lucidumStratum corneumStratum granulosumMelanocytesKeratinocytes

Simple columnar epithelium, ciliatedName a location where this could be found

Specific function of this epitheliumGeneral term for a cavity or opening against the apical surface

Fallopian tubeSweeping movement of oocyteLumen

MesenchymeType of protein fibers in this tissueFunction of this connective tissue.

Name the three embryonic germ layers

Reticular fibers & collagenGives rise to all other connective tissueMesoderm, endoderm, ectoderm

Areolar or loose connective tissueMain cell type

Two types of protein found in this tissueFunction of this tissue

Two locations this tissue could be found

FibroblastElastic and collagenLoose Binding. Holds nerves and blood vessels in placeSubcutaneous layers and fascia between muscles

AdiposeType of cell

Name two locations this tissue could be foundTwo functions of this tissue

AdipocyteSubcutaneous fat, breasts, heart surfaceEnergy storage, thermal insulation, protection for some organs

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Reticular connective tissueType of protein fibers

Function of this type of connective tissueCells that produce fibers

Name two locations this connective tissue could be found

Reticular fibersSupportive stroma (framework) for lymphatic organsReticular cellsLymph nodes, spleen, thymus, bone marrow

Dense regular connective tissueCell type

Type of protein in this connective tissueFunction of this tissue

Name two locations

FibroblastsCollagenProvides strong attachment points and gives high tensile strengthLigaments and tendons

Dense irregular connective tissueMajor protein

Cell typeLocation

General function of this connective tissue.

CollagenFibroblastsDeeper portion of dermisMulti-directional strength

Hyaline cartilageCell type

Term for material making up matrixFunction

Two locations this tissue could be found

ChondrocyteGround substanceNon rigid support. Eases joint movements, holds airway open for respiration, moves vocal chords for speechNose, ends of bones and movable joints, fetal skeleton

FibrocartilageHow is this distinguished from dense connective tissue?

Cell typeSignificant protein in matrix

FunctionCavities the cells are located in

Two locations this tissue could be found

Have round lacunae in the fibersChondrocyteCollagenWithstands high pressureLacunaeIntervertebral discs, knees

Elastic cartilageUnique protein to this connective tissueTwo locations this tissue could be found

Function

ElastinExternal ear, epiglottisFlexible support

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Bone (osseus tissue) Cell type

Cavities cells are located inDark area in center

Two structures found in the dark center areaTiny, crack-like lines radiating outward from center

Function of the above structuresGeneral function of this tissue

OsteocytesLacunaeHaversian canalBlood vessels and nervesCanaliculiDiffusion of nutrients and wasteRigid support, production of red blood cells, mineral storage

BloodMain cell type

Function of these cellsCells that pick up darker stain and are fewer in number

General function of these darker staining cells

ErythrocyteTransportation (of nutrients, wastes, gases, chemical signals, heat)LeukocytesDefense and immunity against infection and other pathogens

Skeletal Muscle Location this tissue could be found

Voluntary or involuntaryMultinucleate or uninucleate?

Around boneVoluntaryMultinucleate

Cardiac MuscleLocation of tissue

Name the structure separating individual cellsName the two types of junctions in the above structure

Voluntary or involuntary?Multinucleate or uninucleate?

HeartIntercalated disksGap junction and desmosomesInvoluntaryUninucleate

Smooth MuscleName the type of junction between cells

Voluntary or involuntary?Multinucleate or uninucleate?

Gap junctionInvoluntaryUninucleate

Nerve TissueSpecific cell type

Function of this cell typeExtensions of cell that conduct impulses into soma

Extensions of cell that conduct impulses away from soma

Multi-polar neuronConducts impulses, internal communicationDendriteAxon

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