histo
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39 questions
| 🇬🇧 | 🇬🇧 |
| Structure | Oesophagus stratified squamous non-keratinised LPM has smooth muscle tissue Skeletal muscle tissue in tunica muscular externa (also has auerbachs plexus) stellate shaped lumen tunica submucosa has meissners plexus |
| NA | NA |
| Structure | Stomach Tunica mucosa has gastric pits No goblet cells 3 layers of smooth muscle in TME + auerbachs plexus proper gastric glands (have parietal cells) in LPM and two layers of smooth muscle simple columnar w pale cytoplasm submucosa has meissners plexus |
| NA | NA |
| ? | Duodenum absorptive epithelium with absorptive area (microvilli, valves) crypts of lieberkuhn Brunners glands in submucosa LPM has 2 thin layers of smooth muscle tissue KERCKERINGS VALVES!!! |
| Identify | Jejunum: Absorptive epithelium, numerous kerckerings valves, deep crypts of lieberkuhn has paneth cells. absence of glands in tunica submucosa |
| Identify | Colon, rectum 4 basic tunicae in the wall typical intestinal ep. with numerous goblet cells no intestinal villi long crypts of lieberkuhn |
| Identify | Appendix thick walled but a small lumen 4 basic tunicae present in the wall prominent aggregation of lymphatic tissue abundant goblet cells present in epithelium rare and short crypts of lieberkuhn |
| Identify | Anal canal 3 covering epithelia present columnar zone-simple columnar epithelium with abundant goblet cells (associated with crypts of leiberkuhn) intermediate zone- stratified squamous non keratinized which is followed by epidermis has internal hemorrhoidal plexus and internal sphincter muscles of the anus skeletal muscle fibers Skin zone: stratified squamous keratinized has hair follicles and sebaceous glands |
| Identify | Liver hepatocytes (principal cells of the liver parenchyma) form hepatic plates around CENTRAL VEIN!! triangular portal spaces (peri portal spaces) seen with interlobular artery, interlobular vein and interlobular bile duct |
| Identify | Gall bladder mucosa forms irregular,thin folds which are covered by high columnar epithelium. glands of gall bladder only present in neck region. T. muscular mucosa and the submucosa are absent |
| Identify | Pancreas very similar to parotid presence of islets of langerhans absence of striated ducts but has intercalated ducts and interlobular ducts existence of centroacinar cells inside the acini |
| Identify | Pituitary gland 2 parts : neurohypophysis: has unmyelinated nerve fibres and pituicytes with large pale nuclei and distinct nucleoli Adenohypophysis: 3 parts Pars Distalis -Chromophils, Acidophils, Basophils Chromophobes(smallest) Pars Intermedia - cells arranged in cords or follicles lumen of follicles filled with colloid. cells are basophilic pars tuberalis- can't be seen |
| Identify | Suprarenal gland cortex has 3 zones Zona Glomerulosa - round shaped cords of light epithelial cells Zona Fasciculata -composed of straight parallel cords of light cells with cytpolasm "spongiocytes" Zona Reticularis -anastomosing cords formed by dark stained cells medulla Chromaffin Cells Stroma: Capsule - enclosed by a thin layer of connective tissue. |
| Identify | Thyroid gland composed of follicles filled with colloid follicular cells, basophilic parafollicular cells: pale nucleus and distinct nucleolus. |
| Identify | Parathyroid gland Parenchyma- Chief Cells are the majority of cells in the parathyroid. small and contain large nucleus Oxyphil Cells- larger cells with dark nuclei and strongly eosinophilic cytoplasm because of numerous mitochondria. |
| Identify | Kidneys!! medulla has loop of henle straight proximal and distal tubule collecting ducts cortex Bowmans capsule proximal and distal convoluted tubule medullary rays |
| Identify | Ureter: stellate lumen tunica adventitia 2 layers of smooth muscle: inner - longitudinal outer-circular lined with urothelium. LPM forms core of mucosal folds |
| Identify | Urinary bladder T.M= transitional epithelium (urothelium) inner= longitudinal middle= circular (sphincter) outer= longitudinal T.A: LCT by serosa |
| Identity | Corpus penis Tunica Albuginea - sheath of dense irregular connective tissue & deep artery of penis Corpora Cavernosum also has deep artery of penis Corpus Spongiosum - urethra lined with stratified columnar ep. paraurethral glands small cavernous sinuses and trabecular of erectile tissue are between urethra and TA |
| IDENTIFY | Glans penis corpus spongiosum- erectile tissue made of cavernous sinuses and fibromuscular tissue trabeculi outlined by thin epidermis and CT of dermis connected to DCT. of tunica albuginea fossa navicuralis lined with stratified squamous non keratinized ep. thin hair, modified free sebaceous glands |
| Identify | OVARY large cortex and inconspicuous medulla ovarian follicles 4 layers: granulosa membrane basal lamina of follicular cells theca interna theca externa spinocellular LCT of the cortex |
| Identify | Ovary corpus luteum corpus luteum corpora lutea and & corpora albicantia cortex contains ovarian follicles ovarian CT theca-lutein cells |
| Identify | Oviduct T.M extends to branched anastomosing folds forming a labyrinth that fills the lumen simple columnar epithelium with ciliated & secretory cells and LPM T M.externa is relatively thin Tunica Serosa: thick layer of LCT with mesosalpinx |
| Identify | Uterus proliferative phase endometrium-simple columnar with ciliated and secretory cells simple tubular endometrial glands are straight and with narrow lumen LPM formed of spinocellular connective tissue Myometrium is very thick of smooth muscles Perimetrium on ant. and post. face of uterus or parametrium on lateral edges |
| Identify | Uterus - secretory phase same as proliferative glands become highly coiled, lumens enlarge stromal CT spindle shaped fibroblasts transform to decimal like cells- functional zone and basal zone |
| Identify | Vagina epithelium: stratified squamous non-keratinised very light stained - the cells look empty with a dark nucleus (characteristic feature) LPM is thick thin walled vein T. muscularis externa: 2 layers of smooth muscle tissue inner: circular is thicker outer: fibromuscular: longitudinal |
| Identify | Early placenta chorionic villi are large so a lot intervillous space syncytiotrophoblast & cytotrophoblast can be seen placental layer full of decidual cells very loose core mesenchymal CT |
| Identify | Late placenta small chorionic villi lesser intervillous space a lot of vessels only syncytiotrophoblast can be seen desidual basalis and decidual septa composed of darker stained decidual cells LCT becomes dct |
| Identify | Sympathetic ganglion large bodies of ganglic cells intermingled with unmyelinated nerve fibres contains densely packed Schwann cells |
| Identify | Cerebrospinal nerve nodes of ranvier light stained nerve dark flattened Schwann cells perineurium coverings epineurium endoneurium |
| Identify | Spinal cord white matter at periphery grey matter in central part central part has a central canal pia mater has LCT arachnoid has several flattened epithelia cells duramater- DCT avascular nissl substance in dendrites (rough endoplasmic reticulum) |
| Identify | Cerebral cortex LCT with blood vessels molecular layer: few neurons external granular layer: purkinje cells pyramidal layer : small granular cells also has glomeruli cells cerebellar glomeruli |
| Identify | Cerebellum 3 layers molecular layer: small cells granular layer: Golgi and small cells purkinje cells learn theory for this slide |
| Identify | Choroid plexus ramified folds and villous-like processes lined with simple cuboidal epithelium apical pole has microvilli epithelial cells at a tight junction and form CSF LPM consists of LCT with many vessels and capillaries |
| Identify | LIP mucosal side has vermillion border without cornfield layer, Submucosa has seromucous salivary glands stratified squamous non keratinized skeletal muscle tissue Skin side has epidermis, dermis, skin appendages and sebaceous glands except aromatic apocrine glands hair |
| Identify | Parotid salivary gland parenchyma has dark stained serous acini in lobules interlobular striated ducts plus fat cells large interlobular ducts |
| Identify | Submandibular gland mixed seromucous glands with predominant serous acini has mucous tubules grouped with serous demilunes |
| Identify | Sublingual gland formed of lighter stained mucous tubules, grouped with serous demilunes interlobular striated ducts less serous acini that are only in the form of serous demilunes |
| Identify | Tongue apex (dorsum) stratified squamous non-keratinised epithelium with fungiform papillae thick layer of skeletal muscle tissue serous mucous glands in tips of skeletal muscle in the tip of the tongue |
| Identify | Adenohypophysis pars distalis: has chromophobes, chromophils pars tuberalis: pars intermedia: cords of epithelial cells basophilic cells lumen of follicles contains colloid |