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Endocrine Gland Histology

This document summarizes the key glands in the endocrine system, including the anterior pituitary gland, thyroid gland, parathyroid gland, pancreas, and adrenal gland. For each gland, it provides the names and functions of the main cell types or zones that make up the gland, along with an accompanying image to illustrate the gland structure and locations of the key cell types. The summary focuses on the main hormone-producing cells within each gland.

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chloe
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57 views2 pages

Endocrine Gland Histology

This document summarizes the key glands in the endocrine system, including the anterior pituitary gland, thyroid gland, parathyroid gland, pancreas, and adrenal gland. For each gland, it provides the names and functions of the main cell types or zones that make up the gland, along with an accompanying image to illustrate the gland structure and locations of the key cell types. The summary focuses on the main hormone-producing cells within each gland.

Uploaded by

chloe
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Nama : Ervinna Tantri (Angkatan 2019)

NIM : 01071190034

Types of Glands Image Explanation

Composed of :
• Chromophils stained
- Basophils [B]:
corticotrophs (ACTH,
A LPH), gonadotrophs
(FSH, LH, ICSH) and
Anterior Pituitary thyrotrophs (TSH)
B - Acidophils [A]:
C somatotrophs (GH)
and lactotrophs (PRL)

• Chromophrobes [C] stain

Thyroid Follicles:
• Follicular Cells [F] =
produce thyroid hormones
and TSH receptors
F C • Colloid/Thyroglobulins [T]
Thyroid
T = inactive storage for T4
and T3 hormones

Parafollicular Cells / C Cells [C] =


Secrete calcitonin

Composed of:
• Principal/Chief cells [P]
mainly densely packed.
Parathyroid O P • Clumping of acidophilic
degenerated derivatives of
principal cells called
oxyphil cells [O].

Islets of Langerhans composed of:


• α cell produces glucagon
• β cell produces insulin
Pancreas • δ or D cell produces
somatostatin
• PP cell produces
pancreatic polypeptide
Nama : Ervinna Tantri (Angkatan 2019)
NIM : 01071190034

Inside the capsule [C] of adrenal


gland is an adrenal cortex, which
has 3 concentric zones:

• Zona glomerulosa [G], 15%


of cortex, produced
mineralocorticoids, its
principal product is
aldosterone, the major
regulator of salt balance.

G • Zona Fasciculata [F], 65-


80% of cortex, filled with
lipid droplets and appear
vacuolated, produced
glucocorticoid, especially
Adrenal
F cortisol, which stimulates
gluconeogenesis in many
cells and glycogen
synthesis in the liver.
R
• Zona Reticularis [R], 10%
of cortex, contains fewer
M lipid droplets and more
lipofuscin ligament,
produced cortisol and
primarily weak androgens,
including
dehydroepiandrosterone
(DHEA).

Last inner part is the adrenal


medulla [M]/chromaffin cells, that
is functioned for storage and
secretion of catecholamines, such
as epinephrine or norepinephrine.

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