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1st year. Histology revision slides. 2013.

PALATINE TONSIL
1. crypts lined by stratified squamous non keratinized epithelium
2. no lypmph sinuses 
3. lymph nodules arranged in rows

SIMPLE COLUMNAR EPITHELIUM
1. single layer of tall cells
2. cells: height is more than width
3. elongated basal nucleus





CEREBRUM

1. outer grey matter with 6 layers of cells
2. characteristic pyramidal cells




PERIPHERAL NERVE

1. bundles of nerve fibres
2. endo and perineurium present
3. myelin sheath as unstained area




VEIN

1. thin walled large irregular lumen
2. adventitia thicker than media




SIMPLE SQUAMOUS EPITHELIUM

1. single layer of fusiform cells
2. long axis of nuclei is parallel to the long axis of cell



ADIPOSE TISSUE

1. central unstained area representing fat vacuole
2. polygonal closely packed cells with signet ring appearance (a rim of cytoplasm with peripheral nucleus)



Smooth muscle in endometrium



STRATIFIED SQUAMOUS NON KERATINIZED EPITHELIUM

1. multiple layers of cells
2. basal - low columnar, middle - polygonal, surface- fusiform
3. keratin layer absent





PSEUDO STRATIFIED COLUMNAR EPITHELIUM (EPIDYDIMIS)

1. nuclei at different levels
2. tall columnar with cilia, short basal pyramidal




SPLEEN

1. red and white pulp
2. no differentitaion of cortex and medulla
3. splenic nodules with central arterioles


PSEUDO STRATIFIED COLUMNAR EPITHELIUM with cilia and goblet cells (TRACHEA)

MUSCULAR ARTERY

1. patent lumen
2. EEL and IEL visible
3. thick media



LYMPH NODE

1. cortex and medulla differentiated
2. nodules only in cortex
3. no central arterioles
4. afferent lymphatics and medullary cords and sinuses present



STRATIFIED CUBOIDAL EPITHELIUM 

1. 2-3 layers of cube like cells
2. cells have rounded central nucleus


TENDON (boys  )

1. dense regular CT- densely packed parallel collagen fibres
2. nuclei of fibroblasts btw bundles of collagen 



ELASTIC ARTERY
1. elastic fibres in media
2. EEL not well marked
3 less abundant smooth muscle in media

CARDIAC MUSCLE

1. intercalated discs
2. branched fibres
3. uninucleated cells with oval central nuclei
4. cross striations

HYALINE CARTILAGE (articular  )

1. fibres not visible
2. characteristic arrangement of chondrocytes in lacunae (layers)

SPONGY BONE 

1. trabeculae
2. hematopoetic tissue
3. few haversion systems

ELASTIC CARTILAGE:

1. perichondrium present
2. branching elastic fibres
3. scattered chondrocytes

FIBROCARTILAGE

1. thick type 1 fibres
2. rows of chondrocytes in lacunae btw bundles of collagen fibres


MUCUS ACINI

1. relatively larger lumen
2. empty apices representing washed away mucus
3. flat basal nuclei


SIMPLE CUBOIDAL EPITHELIUM (THYROID FOLLICLE)


SPINAL CORD

1. central canal 
2. inner butterfly shaped grey mater
3. outer white matter


THYMUS

1. characteristic lobules
2. hassals corpuscles
3. no lymph sinuses or afferents
4. cortex and medulla

STRATIFIED SQUAMOUS KERATINIZED EPITHELIUM

1. multiple layers of cells
2. keratin layer on surface
3. surface layer cells lack nuclei


CEREBELLUM

1. outer grey matter (three layers)
2. inner white matter
3. characteristic convolutions

UROTHELIUM (TRANSITIONAL EPITHELIUM)

1. multiple layers of cells
2. pear shaped in middle, dome shaped on surface


TENDON (girls  )


SKELETAL MUSCLE

1. mutinuclear, 
2.peripheral sub sarcolemmal flat nuclei
3. cross striations
4. non branching cylindrical fibres

SEROUS ACINI

1. relatively smaller lumen
2. round nuclei
3. basal half baso, upper half eosino



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