what slide is this?
cuboidal follicular cell
What is this? What kind of gland is it (how do you know)?
simple tubular coiled gland
A simple gland has an unbranched duct (or no duct at all). There is only a single secretory unit
What is this? What cells are found here?
1. dark cells - near lumen in the center
2. pale cells - periphery, clear
3. myoepithlial cells - lines periphery, with triangular shaped nuclei
What are these cells (how do you know)? Where are they found?
1) in sweat gland
line the periphery and have triangular shaped nucleus
2) also found in intralobular ducts
What is top portion of this picture (how do you know)
Sweat gland DUCT
know: b/c has stratified cuboidal epithelium, meanders through dermis to terminate on skin surface
What are the bottom arrows? What type of gland is this?
round or pear shaped, clear or lavender
SIMPLE BRANCHED ACINAR GLAND
What is this? What type of muscle?
Erector pili in scalp slide, between hair follicles
What muscle can be found between hair follicles?
Erecti pili - smooth muscle
What are thse cells in a sebaceous gland?
stem cells - basophillic
What are these cells? What does this signifify?
Pyknotic cells in sebaceous gland
pyknotic means condensed nucleus
these cells are dying and will soon lyse. Ultimately, cells lyse and their lipid-filled cytoplasm becomes sebum
What is this? what does its presence indicate? what type of gland is it?
Islet of langerhans
indicates you are in the pancreas
what is this? What is secreted here?
Islet of langerhans
a cell -> glucagon
b cell -> insulin
∂ cell -> somatostatin
F or PP cell -> pancreas polypeptide
what is the gland around the "island" in the middle? what type of gland is this?
exocrine pancreas around the islet of langerhans
acini cells are stained bright red
compound acinar gland
what cell is this in the pancreas? (how do you know)
where does its product go?
serous acini cell
product enters into intercalated duct
what is this in the pancreas (how do you know)? what does it secrete?
Low columnar epithelium
Also secrete bicarbonate-rich fluid.
Located between lobules, within the thin connective tissue septa that separate lobules.
what is this in the pancreas? waht does it secrete?
looks collapsed on itself
produces bicarbonate, stimulated by secretin
what cell is this in the pancreas? what stimulates it?
what does this cell lack?
stim. by secretin
lacks secretory granules
what is red? blue (in the pancreas)
red -- centroacinar cell -- pale staining
blue -- serous acinus cell
what is this in the panceas
pale staining little round ducts
What is this? what type of gland is it?
predominance of the serous acini
compound tubuloacinar gland. By definition, as in all compound glands, the conducting portion is branched
What is this? What type of acni does it have
mostly serous acni (so look for redish color), but also has mucoous acni and mixed acni
both mucous and serous cells that secrete into a common lumen.
what is this? what is it lined by?
intralobular duct of submandibular has striations at the basal surface of their cells.
lined by simple columnar epithelium
2 Notable features of Intralobular ducts (in the submandibular)
1. when you close condense, appears striated due to the parallel arrays of the mitochondria within the infolds of the plasma membrane at the basal surface of the cells.
2. myoepithlial cells
what is this tissue? (how do you know)
papillae on one surface (absent on ventral)
skeletal muscle in middle
have von ebners glands
what is this(how do you know)? what tissue is it found?
circumvallate papillae in the tongue
1. has taste buds (pale ovals)
type of epithelium on the tongue?
stratified squamous surface epithelium