P2 histo lab
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Transcript of P2 histo lab
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Lymphoid
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What organ? Palatine tonsil
cryptLined with?
Stratified squamousepithelium
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Secondary nodule
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What organ? Thymus
lobules
No hylus
Capsule
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cortex
medulla
What are the areas filled with?
Lymphocytes
No germinal centers
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Hassall Corpuscle- enveloped by reticular cells
T Lymphocytes
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What organ?Spleen Fibrous capsule
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White pulpSecondary nodule
Red pulp
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Central arteriole
PAL rich in T Lymphocytes
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Red pulp with splenic cords and venous sinuses
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capsuleWhite pulp
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What organ? Lymph node
Cortex
Medulla
paracortex
hilus
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Secondary nodule
Germinal center
All located in the outer cortex
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Subscapular sinus
Capsule
Cortex
Afferent lymphatic vessel
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Stomach
Primary lymphatic nodule
Unencapulated lymphoid tissue
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Skin and Appendages
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Thick Skin
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Stratum spinosum
melanocytes
Dermal papillae
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Thin Skin
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Thin skin No thicker then the rest of the epidermis
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Stratified SquamousEpithelia
Keratinized
What is it?Skin
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Keratinized Stratified SquamousEpithelium
Dermis-Solid EosinophilicTissue
Hypodermis=SubcutisEosinophilicIslands
Where are we? Thick Skin
What kind of tissue are the dermis & Hypodermis?
Dense Irregular Connective Tissue
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Adipose Tissue
What area of the skin? Hypodermis
Peripheral Nucleus
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Stratum Corneum
Stratum Granulosum
Stratum Spinosum
Stratum basale
Dermis
Where are we? Thick Skin
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Dermis
Hypodermis
Dense IrregConnective Tissue
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What is it? Thin SkinBlue StainedElastic, Collagen,& Reticular Fibers
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ORAL REGION ESPHAGUS AND STOMACH
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tongue
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Serous Glands
MucousGlands
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Skeletal muscle
filiform
Hyper keratinizedNo tastebuds
Fungiform s mixed in
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tongue
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circumvallate Rich in taste bud
Von Ebners Glands - Secretes a watery fluid that dissolves food constituentsSerous glands
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foliate
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Lingual Salivary Glands - Exocrine glands because the secretion product Is released into a cavity (oral cavity).
Stratified Squamous Epithelium
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esophagus
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Stratified Squamous Epithelium
Muscularis Mucosa – has smooth muscle
sub mucosa
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stomach
mucosa
submusca
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stomach
Gastric pits
Lined by simple columnar epithelium
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Parietal cellsProduce HCL
Chief cellsProduce pepsinogen
Mucus secreting cells
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duodenum
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duodenum
Brunners glands
Goblet cells
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Muscularis mucosa
Brunners glands
submucosa
Circular smooth muscle
Longitudinal smooth muscle
Auerbach plexus
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jejunum
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mucosa
submucosa
Muscularis externa
serosa
plicae
villi
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Paneth cellsContain antibacterial cells
Goblet cells
Brush boarder
Crypts of lieberkuhn
Simple columnar
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Ileum
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Ileum
Payer patchA lot of lymphocyte
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colon
Crypts of lieberkuhn
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Lymphatic nodule
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myenteric plexus
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Teniae coli
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Stratified squamous
Simplecolumnar
Anorectal junction
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Keratinized squamous
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appendixSecondary lymphatic nodule
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DIGESTIVE GLANDS
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Submandibular Gland
Intralobular striated duct
serousmucus
demilune
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capsule
Submandibular Gland
Interlobular ductsPseudo stratified epitheliumExcretory gland
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Parotid Gland
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Intralobular striated duct
Interlobular ductsParotid Gland
Serous acini
septa
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Intralobular striated duct
Intercalated ductsLess cytoplasmSimple cuboidal
Parotid Gland
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pancreas
Islets of langerhand
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pancreas
Islets of langerhandWith Alpha and Beta cells
Zymogen granules
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pancreas
Interlobular ductSimple columnar
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pancreas
AciniZymogen granules
Centeroacinar cells
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liver
Central vein
sinusoid
Portal veinWith CT
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hepatocytes
Kupffer cellsThe macrophage
liver
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gallbladder
Smooth m
serosa
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gallbladder
Simple columnar
Lamina propira
Smooth m
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RESPIRATORY SYSTEM
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Trachea
thyroid
esophagus
Smooth mucles
Trachealis muscle
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Trachea
Ciliated pseudostatified columnar
Hyaline cartilage
Lamina propria
submucosa
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lungartery
BronchioleCiliated simple columnar
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alveoli
Alveoli duct
lung
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Type 2 pneumocyte (foamy)
Type 1 pneumocyte
Clara cell
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lungBronchus- has cartilage
Ciliated psuedostratifided columnar