Semester I Midterm Images Flashcards
simple columnar epithelium
(gall bladder, H-E)
zoomed OUT
pseudostratified columnar ciliated epithelium
(epidymis, HE)
zoomed out
pseudostratified columnar ciliated epithelium
(epidymis, HE)
zoomed IN
simple columnar epithelium (gall bladder, H-E)
stratified squamous non-keratinizing epithelium
(esophagus, H-E)
zoomed out
stratified squamous non-keratinizing epithelium
(esophagus, H-E)
Answer given, but there are other unidentified layers and components
Stratified Squamous Keratinizing Epithelium
palm skin HE
skin in general is keratinizing epithelium
layers, from outside:
1 keratinizing (dead cells) in corneal layer/stratum corneum
2 dying cells in lucidal layer/stratum lucidum
3 keratohyalin granules in the granular layer/stratum granulosum
4 spinous layer/ stratum spinosum
below is basal layer, dermis, hypodermis etc
Note the layers
Stratified Squamous Keratinizing Epithelium
palm skin HE
skin in general is keratinizing epithelium
layers, from outside:
1 keratinizing (dead cells) in corneal layer/stratum corneum
2 dying cells in lucidal layer/stratum lucidum
3 keratohyalin granules in the granular layer/stratum granulosum
4 spinous layer/ stratum spinosum
below is basal layer, dermis, hypodermis etc
Stratified Squamous Keratinizing Epithelium
palm skin HE
skin in general is keratinizing epithelium
layers, from outside:
1 keratinizing (dead cells) in corneal layer/stratum corneum
2 dying cells in lucidal layer/stratum lucidum
3 keratohyalin granules in the granular layer/stratum granulosum
4 spinous layer/ stratum spinosum
below is basal layer
dermis (MEISSNER BODIES in dermal border)
hypodermis (contains Vater Pacini bodies)
look for sweat glands
{body may be called corpuscles}
1
stratum corneum/corneal layer
contains dead skin cells (keratinizing epithelium)
2
stratum lucidum
contains dying skin cells
3
stratum granulosum
5
epidermis
-made of stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale
6
dermis
contains Meissner’s Corpuscles closer to border with epidermis
(in image below, Vater Pacini corpuscle should be more in the hypodermis)
2
stratum basale
1
stratum spinosum
stratified columnar epithelium
(penis - urethra, HE)
zoomed out
stratified columnar epithelium
(penis - urethra, HE)
zoomed in
transitional epithelium
urinary bladder (HE)
this is for STRETCHING
transitional epithelium
urinary bladder (HE)
this is for STRETCHING
note “umbrella” cells
goblet cells
colon, HE
colon HE
goblet cells
scalp HE
sebaceous gland (holocrine)
Holocrine glands are glands that secrete whole cells that have completely broken down for elimination from the body (no other types of secretion kill the entire cell). Sebaceous glands are the only type of holocrine glands.
They are located parallel to hair follicles and are usually between hair follicles and the arrector pili muscles that support the follicles, allowing them to contract and tighten around the hair. Before secretion, the whole cells of the sebaceous glands first swell with lipids and other moisturizing agents. Then they break down, die and ooze out to engulf the surface of the skin.
When sebaceous glands disintegrate, they are secreted as a substance called “sebum.” This sebum, though a form of waste, is beneficial since it provides lubrication for hair follicles, reducing hair breakage and giving moisture to dry scalp and dry skin all over the body.
scalp HE
sebaceous gland (holocrine)
Holocrine glands are glands that secrete whole cells that have completely broken down for elimination from the body (no other types of secretion kill the entire cell). Sebaceous glands are the only type of holocrine glands.
They are located parallel to hair follicles and are usually between hair follicles and the arrector pili muscles that support the follicles, allowing them to contract and tighten around the hair. Before secretion, the whole cells of the sebaceous glands first swell with lipids and other moisturizing agents. Then they break down, die and ooze out to engulf the surface of the skin.
When sebaceous glands disintegrate, they are secreted as a substance called “sebum.” This sebum, though a form of waste, is beneficial since it provides lubrication for hair follicles, reducing hair breakage and giving moisture to dry scalp and dry skin all over the body.
scalp HE
sebaceous gland (holocrine)
sebaceous glands lead to hair follicles through the sebaceous gland duct
Holocrine glands are glands that secrete whole cells that have completely broken down for elimination from the body (no other types of secretion kill the entire cell). Sebaceous glands are the only type of holocrine glands.
tubular-alveolar apocrine gland
prostate (HE)
corpora amylacea (prostate stones) are more frequent with age
contains transitional epithelium in parts of urethra
(note lumen)
if testosterone is high, cells may appear more columnar. if testosterone is low, cells may appear more cuboidal.
tubular-alveolar apocrine gland
prostate (HE)
corpora amylacea (prostate stones) are more frequent with age
contains transitional epithelium in parts of urethra
(note lumen)
if testosterone is high, cells may appear more columnar. if testosterone is low, cells may appear more cuboidal.
what is this and what are the sections with violet concentric circles?
tubular-alveolar apocrine gland
prostate (HE)
corpora amylacea (prostate stones) are the structures with concentric circles in the lumen, more frequent with aging. may appear more solid/calcified.
submandibular gland HE
merocrine gland
tubular-alveolar
submandibular gland HE
merocrine gland
tubular-alveolar
identify the type of gland this is and explain components
EXPLANATION OF
submandibular gland HE
merocrine gland
tubular-alveolar
_
Merocrine glands are a type of EXOCRINE gland.
Merocrine is the most common manner of secretion. The gland releases its product and no part of the gland is lost or damaged
Submandibular gland has serous cells that produce saliva and surround or at least are near mucus cells (mucus isn’t stained so it’s invisible)
in image below, cells to the right are mucus cells and cells to the left are serous cells
tendon HE
Tendon cells, or tenocytes, are elongated fibroblast type cells. The cytoplasm is stretched between the collagen fibres of the tendon.
elastin fibers/ elastic artery (RF resorcin-fuchsin staining)
-ability to stretch in response to huge difference in pressuring during pulse through artery
layers (from lumen):
1 tunica intima
2 tunica media
3 tunica adventitia
Elastic fibers (or yellow fibers) are bundles of proteins (elastin) found in extracellular matrix of connective tissue and produced by fibroblasts and smooth muscle cells in arteries. These fibers can stretch up to 1.5 times their length, and snap back to their original length when relaxed. Elastic fibers include elastin, elaunin and oxytalan.
elastin fibers/ elastic artery (RF resorcin-fuchsin staining)
-ability to stretch in response to huge difference in pressuring during pulse through artery
layers (from lumen):
1 tunica intima
2 tunica media
3 tunica adventitia
Elastic fibers (or yellow fibers) are bundles of proteins (elastin) found in extracellular matrix of connective tissue and produced by fibroblasts and smooth muscle cells in arteries. These fibers can stretch up to 1.5 times their length, and snap back to their original length when relaxed. Elastic fibers include elastin, elaunin and oxytalan.
reticuline fibers (argentophil fiber)
(liver, silver impregnation)
reticulin fibers (argentophil fiber)
(liver, silver impregnation AgNO3)
fibers of connective tissue
scalp skin (AZAN staning, includes mallory {anibin blue + methyl orange} and azocarmin)
blue - connective tissue
red - epithelia, glands, vessels (due to many nuclei)
stratified squamous keratinizing epithelium with sebaceous glands/hair follicles
fibers of connective tissue
scalp skin (AZAN staning, includes mallory {anibin blue + methyl orange} and azocarmin)
blue - connective tissue
red - epithelia, glands, vessels (due to many nuclei)
stratified squamous keratinizing epithelium with sebaceous glands/hair follicles
umbilical cord (H-E)
- wharton’s jelly
- simple cuboidal cells
- amniotic membrane
face image when look at slide outside of microscope or low magnification
-identify artery/vein
umbilical cord (H-E)
- wharton’s jelly
- simple cuboidal cells
- amniotic membrane
face image when look at slide outside of microscope or low magnification
-identify artery/vein
granulation tissue - stomach ulcer (HE)
healing wound, connective tissue
appears as 2dimensional depression from lumen
- fibroblast/fibrocyte
- plasma cells
- lymphocytes
granulation tissue - stomach ulcer (HE)
healing wound, connective tissue
appears as 2dimensional depression from lumen
- fibroblast/fibrocyte
- plasma cells
- lymphocytes
granulation tissue - stomach ulcer (HE)
healing wound, connective tissue
appears as 2dimensional depression from lumen
this is more zoomed in, reference area no longer visible
- fibroblast/fibrocyte
- plasma cells
- lymphocytes
Mast Cell - peritoneum (toluidine blue)
Mast Cell - peritoneum (toluidine blue)
white adipose tissue - tongue (Sudan III)
- lipids not removed with this section as they usually are
- nuclei are blue
- cells are stratified squamous non-keratinizing epithelium
white adipose tissue - tongue (Sudan III)
- lipids not removed with this section as they usually are
- nuclei are blue
- cells are stratified squamous non-keratinizing epithelium
neutrophil granulocyte
-blood smear slide
basophil granulocyte
-purple with darker purple dots
what are these 3 different granulocytes?
left: neutrophil
top-right: eosinophil (more pinkish and grainy)
bottom-right: basophil
M is
monocyte
