Endocrine System Part 1. Endocrine System The endocrine system is the “other” control system of…
Endocrine system
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Transcript of Endocrine system
![Page 1: Endocrine system](https://reader033.fdocuments.in/reader033/viewer/2022042813/548c87ddb4795961648b4640/html5/thumbnails/1.jpg)
ENDOCRINE SYSTEM
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HYPOTHALAMUS
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RED- PITUITARY
VIOLET-INFUNDIBULUM
ORANGE-
HYPOTHALAMUS
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PITUITARY GLAND
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PITUITARY GLAND
infundibular stalk (IS); pars nervosa (PN); pars distalis
(PD); pars intermediate (PI); and pars tuberalis (PT)
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THYMUS
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Each lobule of this gland has a darker staining cortex (left A) and a lighter staining medulla (left B). One outstanding feature of this organ is the presence of thymic roses/thymic corpuscles (C). This organ, large until adolescence, is important for the development of the immune system. The hormone produced by this gland is thymosin.
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THYROID GLAND
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The lumen (L) of each follicle is surrounded by a simple
epithelium in which the cell height ranges from squamous
to low columnar. Also present are large pale-staining
parafollicular or C cells (C).
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RED – Follicle
with colloid
BLUE – Follicular
cells
PINK -
Connective tissue
septa
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PARATHYROID GLAND
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RED - Chief Cells
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RED – Oxyphil cells
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ADRENAL GLAND
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CAPSULE
ZONA FASCICULATA
ZONA GLOMERULOSA
ZONA RETICULARIS
MEDULLA
CORTEX
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CORTEX
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RED – Cells of the
medulla
BLUE – Cells of the
zona reticularis
GREEN –
Sympathetic
ganglion cells
MEDULLA
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FEMALE REPRODUCTIVE
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EGG CELL
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EGG CELL
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MALE REPRODUCTIVE
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Arrows shows the location of the leydig cells
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1 Lumen of Tubulus
seminiferus contortus
2 spermatids
3 spermatocytes
4 spermatogonia
5 Sertoli cell
6 Myofibroblasts
7 Leydig cells
8 capillaries
TESTIS
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PINEAL GLAND
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EPIPHYSIS (PINEAL GLAND)
Stained with haematoxylin and eosin
1 - pinealocytes
2 - pineal sand (salts of calcium, magnesium and silicon
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ALIMENTARY
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STOMACH
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STOMACH
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DUODENUM
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LIVER
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PANCREAS
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PANCREAS