Endocrine System Histology Laboratory Orientation.

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Presentation transcript:

Endocrine System Histology Laboratory Orientation

Hypothalamus and Hypophysis Hypothalamohypophyseal tract Infundibulum Median eminence Pars nervosa

Long and short hypophyseal portal veins Primary plexus of hyophyseal portal veins in median eminence Secondary plexus of hypophyseal portal veins Superior hypophyseal artery Inferior hypophyseal artery Drainage of the veins to cavernous sinus

Cross (transverse) section Frontal view #226 (H) xc trichrome (human) #226 (H) xc H&E (human)

#226 H (H&E) #226 (trichrome) S S

226 (H&E) Sinusoidal capillaries

Hypophysis (sagittal section) use for Pars nervosa and intermedia #227(H) sag Trichrome #226 (H) sag H&E

Pars nervosa Note capillaries and pituicyte nuclei #227 (H) sag trichrome #226 (H) sag HE

#227 (M) xc triC (also 227(M) xc HE)

#227 (M) xc Monkey Pars Intermedia #227 (M) xc Trichrome

#226 (H) sag HE and 227 (H) sag triC Pars intermedia (PI) and remnants of Rathke’s pouch (RP) PI RP PI

#229 Human, sagittal Infundibular Stalk Hypophyseal portal veins (system) Also, #229B Human, Infundibular Stalk

#217 Thyroid gland Parathyroid gland

#218 Rat Normal #218 Rat Hypoactive #218 Rat Hyperactive

#217 #220 #221 Parathyroid Oxyphil cells

Kidney and Suprarenal Glands in situ

#230 Human Adrenal (suprarenal) gland

#230 Human Adrenal gland

#230 Adrenal Cortex Z. Glomerulosa Z. Fasciculata Z. Reticularis

#230 Adrenal Medulla Branch of central vein

#231 Monkey adrenal gland

WebSlide 95: pancreas Islet of Langerhans – contrast with surrounding acinar cells and note the rich capillary bed.