Histology Pictures (Lumen & Jaydoc)

Front 1

Transitional epithelium -- diagnostic for urinary tract. The surface cells are characteristically dome-shaped and puffy.

Back 1

Name this tissue type & where it's found

Front 2

Transitional epithelium from a distended urinary bladder; compare with the contracted wall in the preceding slide. When stretched, the epithelium becomes very thin, with fewer layers of cells, and the surface cells tend to be flattened. There's only the one layer of flatter cells, however, which is quite different from the appearance of stratifi ed squamous epithelium

Back 2

what is this & where is it found?

Front 3

Stratified squamous epithelium (non-keratinized) for comparison. Note that there are many layers of flattened cells, and, in fact, the whole epithelium is quite thick. (from kidney???)

Back 3

what's this & where is it found?

Front 4

Papilla (right) projecting into calyx (left) lined with transitional epithelium. kidney/ureter

Back 4

what's this & where's it found?

Front 5

Junction of esophagus (left) and cardiac stomach (right). There is a sudden change in epithelium, from stratified squamous to simple columnar.

Back 5

what 2 things do you/where are they found/what's the sudden change/organs?

Front 6

Low power view of stomach through two folds in the wall. Dark pink represents mucosa, with many glands in it.

Back 6

what's this & where is it found?

Front 7

Trachea at higher magnification, showing pseudostratified ciliated columnar epithelium lining the lumen. A wide blood vessel lies in the lamina propria below. Hyaline cartilage is at the bottom of the picture.

Back 7

what's this & where is it found? what's tissue below?

Hint 7

THIS WILL BE ON EXAM!

Front 8

Detail of pseudostratified ciliated columnar epithelium lining the trachea. Note the presence of pale goblet cells. Foreign particles are trapped in mucus secreted by goblet cells and then moved up (and out of) the respiratory tract by the beating cilia. A pale and quite thick basement membrane underlies this epithelium.

Back 8

what's this & where is it found?

Front 9

The trachealis muscle (smooth muscle) is the bright pink band in the middle of the field. Notice how cellular the c.t. under the epithelial layer is. pseudostratified ciliated columnar. Respiratory Tract. Wandering blood cells, especially lymphocytes and eosinophils, are usually found here.

Back 9

what's this & where is it found?

Front 10

pseudo strat ciliated columnar. Also shown are: large chondrocytes of the cartilage. The epithelium lining the lumen looks pseudostratified still. A layer of pink smooth muscle lies between it and the cartilage. Considerable elastic tissue lies in the respiratory wall as well

Back 10

what's this & where is it found? what 's tissue below it?

Front 11

simple squamous, respiratory tract.

alveoli, capillary lumens. fine collagenous and elastic fibers also accompan y the capillaries. As you can see, especially in the capillaries, capillary endothelium = simple squamous alveolar epithelium separating blood from air, is extremely thin.

Back 11

what's thsi & where is it found?

Front 12

simple squamous epithelium lining blood vessels.
Endothelium = the simple squamous epithelium lining blood vessels.
-endothelial cells lining a small blood vessel cut in cross-section.

Back 12

what's this & where is it found?

Front 13

circumference = simple squamous epithelium
- endothelial nuclei lining the lumen
-yellowish cells filling each vessel's lumen are blood cells.

Back 13

what's in the circumference, what's the yellow circle?

Front 14

Simple cuboidal epithelium lining a tubule

Back 14

what's this & where can it be found?

Front 15

Simple cuboidal epithelium Underneath the epithelium lies a small blood vessel filled with orange-colored blood cells.

Back 15

what's this & where can it be found? what's the orange stuff underneath? (what kind of cells is it?0

Front 16

The smaller ones clustered in the center and upper left are lined by simple squamous epithelium. The larger pink tubules have simple cuboidal epithelium.

Back 16

Identify 2 types here & where they can be found.

Front 17

A tubule stained to show the pink basement membrane underlying the base of the simple cuboidal epithelium.

Back 17

what's the pink circumference called? where can this be found?

Front 18

A tubule stained to show the pink basement membrane underlying the base of the simple cuboidal epithelium.

Back 18

what's the pink circumference called? where can this be found?

Front 19

Simple columnar epithelium with very regular line-up of nuclei.

Back 19

what's this & where is this typically found? (bonus: what're tissues underneath?)

Front 20

simple columnar epithelium w/goblet cell secreting mucus. T

Back 20

what's this & where is it found? what's that round thing?

Front 21

Four rows of simple columnar epithelium facing each other in pairs (left and right) across a narrow lumen or channel that lies in the middle of each pair.
The goblet cells are filled with blue mucoid secretion which is being poured into the narrow lumens. Notice that in all four rows of epithelium there is a narrow band of striated border next to the lumen. Look at the right hand rows of epithelial cells. The central cavity (middle opening) is a blood vessel with endothelium, surrounded by a very cellular connective tissue. Separating this connective tissue from the epithelium is a thin blue layer of connective tissue fibers.

Back 21

what're 4 rows & where can this be found? where's the cell membrane? How the middle opening different from the L & R one?

Front 22

Pseudostratified ciliated columnar (Nuclei are at different levels. All cells touch the basement membrane, but only the taller cells reach the lumen).
Trachea.
NOtice: cilia are longer and less regular than the microvilli.

Back 22

what's this & where is it found?

Front 23

Pseudostratified ciliated columnar epithelium with pale goblet cells. The different levels of nuclei are clearer here. Again, notice the wavy-looking cilia.

respiratory tract

Back 23

what's this/where is it found?

Front 24

Transitional epithelium of the urinary bladder, low power view. It is a stratified epithelium with several layers of cells.

Back 24

what's this & where it's found? (hint: only 1 place!)

Front 25

Transitional epithelium, (bladder). Notice many layers of cells -- & typically puffy surface cells.
The bladder is contracted so the epithelium is thick. If the bladder were stretched, the epithelium would be thinner!!!!

Back 25

what's this & where can it be found?

Front 26

Non-K stratified squamous epithelium -- from esophagus, so the surface is moist and living!
Surface cells are squamous and still nucleated. Basal layer is very distinct; compare this with the less distinct basal layer of the preceding slide of transitional epithelium.

Back 26

what's this & where is it found?

Front 27

Kratinized STratified Squamous! . Obviously it's from skin-top layer is dead-not moist like esophagus!

Back 27

what's this & where is it found?

Front 28

GI wall - epithelim, Mesiner C, etc.

Back 28

Know this diagram w: see where epithelium is pointed to!! what's the whole structure called?

Front 29

Simple squamous epithelium
Kidney (Glomerulus)

Back 29

what's this & where can it be found?

Front 30

simple cuboidal epithelium.
Thyroid Gland

Back 30

name tissue type & where it can be found

Front 31

Collecting Duct (Kidney)
Simple cuboidal epithelium is found in several structures in the kidney, including the collecting duct.

Back 31

what's this & where is it found?

Front 32

Slide 5: Gall Bladder
Simple columnar epithelium lines the gall bladder. Note the underlying connective tissue with blood vessels.

Back 32

what's this & where can it be found?

Front 33

Uterine Gland
Simple columnar epithelium forms the glands which are surrounded by connective tissue.

Back 33

what's this /where can it be found?

Front 34

Male Urethra
A pseudostratified columnar epithelium lines most of the penile urethra.

Back 34

name this & where found

Front 35

Trachea
The pseudostratified columnar epithelium of the trachea is ciliated and has goblet cells.

Back 35

name this & where found

Front 36

Trachea
The pseudostratified columnar epithelium of the trachea is ciliated and has goblet cells.

Back 36

what's this /where found

Front 37

transitional epithelium.
Urinary Bladder
The expandible stratified epithelium of the bladder. transitional epithelium. Note that its surface cells are large rather than flattened as in stratified squamous epithelium.

Back 37

what's this & where found?

Front 38

Transitional
Urinary Bladder
-The expandible stratified epithelium of the bladder is referred to as transitional epithelium.
Surface cells of the bladder are sometimes binucleate (black arrow). Note the presence of occasional lymphocytes (blue arrows) in both connective tissue and epithelium.

Back 38

what's this & where found?

Front 39

Stratified squamous keratinizing epithelium covers the lip. Note the thin flat shape of surface cells. The keratin layer is very thin, and is not visible on this section.

Back 39

what's this & where found?

Front 40

Stratified squamous non-keratinizing epithelium lines the vagina. Note that the surface is to the upper right and that the underlying connective tissue is not visible in this field

Back 40

what's this & where found?

Front 41

e stratified squamous (keratinized) epithelium of thin skin has thin layers of keratin on the upper surface. Note that the epithelium rests on connective tissue below (light pink). Thin Skin

Back 41

name this & where found