____ secretion
Holocrine
___ cell in a merocrine gland
function?
mucuous cell
secretes mucous
___ is at the apical portion of a serosu cell
secretory vesicles
what is 7?
last step. sebacyte
1?
stem cell, eventually becomes sebacyte (7)
a ____ producing cell. why? (3)
steroid producing
Lipid droplets in the cytoplasm.
• Abundant smooth ER for cholesterol synthesis.
• Spherical mitochondria with characteris
what is this
basophill
have dark purple cytoplasms
acidophils
cells with bright red or pink cytoplasm are acidophils.
what are these cells? what are they made of?
cells with clear cytoplasm are chromophobes
stem cells
degranulated chromophils
function?
herring body
in posterior pituitary
where neuropeptides from hypothalamus end up following axonal transport
identify.
Glial cells (pituicytes).
adrenal medulla
produces catecholamines
what hormones does this produce?
adrenal cortex
steroid hormones
zone glomerulosa
zona fasciulata
zona reticularis
Cells of the_____ appear foamy due to the presence of lipid droplets
zona fasciculata
secreted here?
secreted here?
identify by the secretory granules
adrenal medulla
Electron-dense secretory granules that react with chromium or silver salts (hence the name chromaffin or argentaffin).
what is missing in the right?
hypophysis
Islets of Langerhans
parafollicular cell
what is produced here? what is its function
calcitonin
inhbiits bone resorption
promotes calcification of bone
chief cell
produces parathyroid hormone
what is this? how do you know?
Oxyphil cells: • Highly acidophilic (=oxyphilic).
Large cells. • Highly acidophilic. • Less abundant.
___ cell in an eccrine sweat gland. what is its function?
pale cell.
secretes FLUID
___ cell in an eccrine gland. function?
dark cell
secretes protein
___ cell in an eccrine cell. function?
myoepithelium cell
contracile units push secretory product out
___ in an eccrine cell. what is it made of?
myoepithelium cell
made of Contractile actin- myosin bundles
what are 4 features of this cell in an eccrine gland?
pale cell
- tight junctions
- abundant mitocondria
- membrane infoldings
- intercellular canaliculi
what are 2 features of this cell in an eccrine gland?
dark cell
- RER
- Golgi Secretory granules
what gland is this?
what stimulates its secretion?
aprocrine sweat gland
Stimulated by adrenergic nerve fibers
what gland is this?
what controls its secretion?
eccrine gland
secretion controlled by cholinergic impulses
this is a ___ gland
compound
CT stroma contains:
- Capillary plexus
- Nerves
- Lymphocytes and plasma cells
Parenchyma contains:
- Secretory acini or tubules
- Intercalated ducts - Intralobular ducts
what is this in a salivary gland?
myoepithlial cell process
looks like smooth muscle?
identify
Striated intralobular ducts in salivary glands
what gland is this?
parotid
note the adippocyte
what gland is this? what tissue is it mostly made out of?
submandibular
serous tissue
what gland is this? what tissue is it mostly made out of?
sublingula gland
mostly mucous
cell type?
where is this found?
INTRAlobular
this is found in submandibular, where it is mostly striated
cell type?
INTERLOBULAR
submandibular gland
what is this?
intercalated duct
what is this? what is it from?
serous demilunes
fixation artifact
what is this? what does it mean
Islets of Langerhans – diagnostic feature of pancreas
what is this gland? how do you know?
A compound acinar gland can be quite accurately modelled as a bunch of grapes embedded in Jello™. The grapes are the acini, the branching stems are the ducts, and the Jello
how do you know this is epithelium of the esophagus?s
stratified squamous
muscle type? where is this found in the esopahgus
skeletal muscle
upper and middle lauyers
muscle type? where is this found in the esopahgus
smooth muscle
found in middle and lower layer of esophagus
has centrall placed nucleus
what is this? what layer is it found?
esophageal cardiac gland
found in the mucosa
what is this layer? what is found here?
mucosa
cardiac glands
stratified squamous epithelium
what is this layer? what is found here?
submucosa
esophageal gland proper
what is this layer in the esophagus? what is the upper/lower/middle segments of this made of?
upper - skeletal
middle - mixed
lower - smooth muscle
what are the 3 histological regions of the stomach?
cardia, fundus/body, and pylorus
region of the stomach?
pyrlous
region of the stomach?
fundus/body
what glands are these? what do these produce?
cardiac glands
short coiled glands
most produce mucous, some produce lysozome and hcl
what glands are these? what cells are present here?
gastric/fundus glands
- mucous neck cell
- pareital cells
- cheif cells
- enteronedocrine cells
gland in the stomach?
pylroic
what is the top cell? what does it secrete?
gastric surface mucous cell
secretes alkaline solution high in bicarbondte that protects the stomach
what is this cell? what does it secrete?
mucous neck cell
secretes soluble and modle mucous
what is this cell? what does it secrete?
parietal cell
secretes intrinsic factor and HCL
what is this cell?
what stimulates secretion from this cell (3)?
parietal cell
histamine, acetylcholine, gastrin
what is this cell? what does it secrete?
chief cell
synthesize and secrete pepsinogens and lipases
what cell is this? what does it secrete?
gastrin, somatostatin, ghrelin
what cell is this?
what disease is it involved in?
paneth cell
chrons disease
what are cells at bottom of CRYPT OF LIEBERKUHN
how often are they replaced?
paneth cells
replaced every 30 days
what is this cell
how do you know
M cell
discontinuous basement membrane
what is this?
where is it found most commonly?
plicae circularis
found in the jejunum
what are these cells in the small intestine? what do they signify?
peyers patches
signify you are in the ileum
what part of the small intestine is this? 3 identifying features are?
ileum
flatter circular folds
shorter villi
peyers patches
what is this?
submucosa in plicae semiluniares
what is this slide of? what are the arrows pointing to?
appendix
what is this?
taenia coli
what organ is this?
appendix
what is this in the liver?
portal venule
what is this in the liver?
centrale venule
what is this cell in the liver?
sinusoid
what is this? name 2 features
classic hepatic lobule
Hexagonal cylinder
Terminal hepatic venule (central vein) at center
what is this?
classic hepatic lobule
what is this? what are 3 identifying features
portal
- triangualr in shape
portal canl in center
emphasis on exocrine function of bile secretion
what is this?
liver acinus
what is this cell in the hepatic sinuoids?
kupffer cell
what are these cells?
kuppfer cells
what is this cell?
what does it store?
Ito cells
stores vitamin A
what is this space?
what occurs here?
perisnusoidal space
where exchange between blood and liver cells occurs
what is this space?
what cells are here?
perisinusoidal space
have Ito cells (store vit. A)
what are these? how do you know?
hepatocytes
Large, spherical, central nuclei with prominent nucleoli
Binucleate and polyploid nuclei
Mostly tetraploid in adult liver
what is this?
what is it formed by?
bile caniculi
formed by adjacent hepatocytes
what is this in the liver
intrahepatic ductile
the picture of the right is the ___ during active fluid transport
gallbladder
what is this? where is it located?
rokinasky aschoff sinus
in the gallbladder
