FINALS 40% Flashcards
LE of Oral cavity
Stratified squamous non-cornified (SSNCE)
- The only communication between the 2
subdivisions which are oral vestibule and the
oral cavity proper.
Retromolar space
LE of the skin (outer part of lips)
stratified squamous cornified epithelium
_____ have no hair follicles, sweat glands, and
sebaceous glands
lips
The Submucosaof the cheeks: Containing tubulo-alveolar small salivary glands called?
buccal glands
Mucosa of the cheeks is: Lined by
Stratified squamous non-cornified
epithelium (SSNCE)
Largest and contain taste buds
Circumvallate -
Leaf-like; rudimentary (common in
animals, not much in humans)
Foliate -
Constricted base, expanded surface
Fungiform -
most numerous papillae
filiform
hardest structure of the body secreted by
ameloblasts; upper portion (sa teeth toh)
Enamel
formed by odontoblasts
Dentin –
– covers the dentin of the root
* Secreted by cementocytes
Cementum
– serve to attach the root of
the tooth to the alveolar socket
Periodontal membrane
– contains blood vessels, nerves,
fibroblasts, histiocytes, and lymphatic vessels
Pulp cavity
– yellowish structure in
submucosal nerve plexus; its purpose is for secretion
Meissner’s plexus
– smooth muscle can be seen in
this layer; inner circular layer
Tunica Muscularis
Tunica Muscularis (3rd layer of esophagus)
* Inner circular and outer longitudinal layer
(ICOL)
* Upper 1/3: ?
* Middle 1/3: smooth and skeletal muscles
* Lower 1/3: smooth muscle
skeletal muscle
Lower 1/3: _____ muscle
smooth
- Most numerous cells in stomach
- Predominates at the lower regions of the
gastric glands - Show abundant rough endoplasmic reticulum
and secretory granules
CHIEF/PEPTIC/PRINCIPAL/ZYMOGENIC CELLS
- Secretes PEPSINOGEN
- Produces gastric lipases
- Pepsin – initiate the hydrolysis of ingested
protein in the stomach - Gastric Lipase – digests lipids
chief/peptic/principal/zymogenic cells
- Parenchyma of stomach
- Large round or pyramidal cells with one or
sometimes 2 central round nucleus - Eosinophilic cytoplasm
PARIETAL/OXYNTIC CELLS
- Simple tubular glands (some compound
tubular glands) - Terminal end is long and coiled
Cardiac Glands
- Simple tubular glands (some compound
tubular glands) - Terminal end is long and coiled
Cardiac Glands
- Gastric pits are short and shallow
- Mostly mucous secreting cells
- Parietal cells and argentaffin cells are few
cardiac glands
- Most numerous types of glands
- Simple branched tubular glands
Fundic Glands
- Terminal end is slightly coiled
- Gastric pits occupy 1⁄4 thickness of mucosa
- Lumen is narrow
- All 4 types of cells are present (!!)
fundic glands
- Simple branched tubular glands
- Terminal end is extensively coiled
Pyloric Glands
- Gastric pits are long and deep extending to
about 1⁄2 the thickness of mucosa - Lumen is wider
- No parietal cells except in the pyloric
sphincter
pyloric glands
Plicae circulares - Valves of Kerckring is a characteristic of?
small intestine
Plicae circulares - Valves of Kerckring is a characteristic of?
small intestine
- Shortest, widest, and the most fixed part
- Brunner’s glands or duodenal glands of
Brunner are found at the submucosa
DUODENUM
- LE: simple columnar with GC
- LP: dense and nodular lymphatic tissues
- MM: smooth muscles
appendix
- LE: simple columnar with goblet cells
- LP: transverse mucosal folds, plicae
transversalis recti - MM: smooth muscles
rectum
parenchyma of small intestines
enterocytes
➢ Branched, tubulo-alveolar glands that secrete saliva
into the oral cavity
SALIVARY GLANDS
secretion of parotid gland
purely serous
secretion of submandibular gland
mixed, mostly serous
secretion of sublingual gland
mixed, mostly mucous
duct of sublingual gland
bartholin rivinus
➢ Pear-shaped
➢ Temporary storage of bile
gallbladder
o LE: Simple columnar
o LP: LCT with mucosal folds called
Rokitansky-Aschoff sinuses (!!)
what organ ???????
gall bladder
➢ Largest glandular organ
➢ FUNCTIONS
* Bile secretion
* Food processing and storage
* Synthesis of fibrinogen, prothrombin, plasma
proteins, heparin
liver
- Detoxification
- Blood glucose concentration and
maintenance - Synthesis of cholesterol and production of
urea - Lipid metabolism
anong organ to
liver
➢ The anatomical unit of the liver
➢ A polygonal prism that appears hexagonal
hepatic lobule
- Center of the hepatic lobule
- Radiating are the hepatocytes that go
towards the periphery of the lobule
central vein
- Corners of the polygon
- Portal vein, hepatic artery, and bile duct
Portal area
➢ Polygonal or polyhedral in shape
➢ Mononucleated and binucleated
hepatocytes
➢ Nucleus is vesicular with one prominent nucleoli
➢ Cytoplasm is eosinophilic and shows a considerable
variation
hepatocytes
➢ Are intercellular channels between the hepatocytes
BILE CANALICULI
➢ Empty into the smallest bile duct lined by cuboidal
cells and called the canals of Herring
➢ Empty into the interlobular bile ducts and into large
ducts
bile canaliculi
- Flattened cells with small, elongated dark
staining nucleus and an attenuated
cytoplasm
Endothelial cells (non-phagocytic cells)
- Stellate shaped with processes containing
engulfed erythrocytes, pigments, and
granules rich in iron - They belong to the reticulo-endothelial
system of the body that originates from the
monocytes
Von-Kupffer cells (phagocytic cells)
- Contain lipid droplets
- Also known as interstitial cells or lipocytes
Fat storing cells (Ito cells)
➢ Perisinusoidal space
➢ Narrow space between the endothelium of the
sinusoids and the periphery of the hepatic cells
DISSE’S SPACE
➢ Smallest radicles of the hepatic veins
➢ Drain into the larger Sublobular vein
➢ Collecting veins
central vein
regulation of arterial blood pressure
renin
drainage of the blood from the kidney
renal vein
Renal cortex and renal medulla are protected by the??
renal capsule
first part of the urinary tract
pelvis
– imaginary boundary between renal
cortex and renal medulla
Arcuate artery
- Made of tuft capillaries
Glomerulus
Capillaries where the blood enters from the
circulation to the ________ arteriole away
from the heart
afferent
Vasa recta is only found in ??
renal medulla
➢ Functional unit of the kidney
NEPHRON
– filtered blood will go back to the
circulation through this efferent arteriole
Efferent arteriole
– first part of the renal tubule; longest
Proximal convoluted tubule
Components of filtration barrier:
o Slit pores/filtration slits of podocytes
o ____________
o Endothelium of a glomerular capillary
Basal lamina
Bowman’s capsule has 2 parts:
parietal and visceral layer
– also called as urinary pole
Tubular pole
- Where you can find the afferent and efferent
arterioles - Entry of the blood
- Where you can find the JG Apparatus
Vascular pole
– where the filtrate will pass through
Proximal convoluted tubule
➢ Intraglomerular mesangial cells
MESANGIUM
➢ Provide structural support
➢ Maintain the basal lamina
mesangium
➢ Disposal and removal of filtration residues
➢ Participate in the turnover of the deeper and older
parts of the basal lamina
mesangium
- Slightly basophilic cytoplasm with specific
granules - Secrete rennin - activates angiotensinogen into
angiotensin I
JG CELLSZ
Appears as palisade layer of columnar cells with
dark staining nuclei
MACULA DENSA
- Function is not clear
- May produce erythropoietin, a hormone that
stimulates erythropoiesis in the bone marrow
Laci’s cells/Extraglomerular mesangial
cells/Polar cushion/Polkissens cells
- Lined by simple cuboidal epithelium with brush borders
- Nuclei are round
- Cytoplasm is granular that stains deeply with eosin
- Acidophilic
PROXIMAL CONVOLUTED TUBULE
- Single layer of cuboidal cells without brush borders
- Wider lumen
- Round nuclei
- Pale staining cytoplasm
Ascending Loop of Henle
- Simple layer of cuboidal cells with few or without brush borders
- Wider lumen
- Pale staining cytoplasm
Distal Convoluted Tubules
- Single layer of cuboidal cells
- Spherical dark staining nucleus
- Clear non-granular slightly basophilic staining
cytoplasm - With distinct cell boundaries
Arched Collecting Tubule
____________Collecting Tubule
* Located at pars radiata
* Simple columnar with dark staining nuclei
STRAIGHT COLLECTING TUBULE
- Single layer of tall columnar cells
- Pale staining nuclei
Papillary Ducts of Bertini