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Transcript 
Endocrine System Histology
and Models
ENDOCRINE SYSTEM
Dry Lab Questions
• Function of the endocrine system:
to maintain homeostasis
•
•
•
•
•
Thymus gland (site of maturation of white blood cells)
Thyroid gland (secretes thyroid hormone and calcitonin)
Parathyroid gland (secretes parathyroid hormone)
Adrenal gland (secretes aldosterone)
Pituitary gland (secretes FSH, etc. The neurohypophysis
stores and releases hormones produced in the
hypothalamus)
• Ovary (also an endocrine gland; secretes estrogen)
• Testes (secretes testosterone)
• Pancreas (secretes insulin; lack= diabetes mellitus)
ENDOCRINE MODELS
•
•
•
•
•
•
•
Thyroid gland
Adrenal gland
Thymus gland
Pituitary gland
Pineal gland
Ovary/Testes
Pancreas
Adrenal and Thyroid glands
Thyroid Gland
Thymus Gland
Pituitary gland
Pineal gland
Ovary
Testes
Pancreas
Adrenal
gland
Kidney
Thyroid Gland
Secretes
calcitonin and
thyroid hormone
Thyroid Gland
Parathyroid Gland
Pituitary Gland
Pituitary Gland
Posterior pituitary
(pars nervosa)
Anterior pituitary
(Pars distalis)
Pineal Gland:
Secretes melatonin
2) Pineal sand
1) Pinealocytes
Pineal Gland
Pancreas
Islet of
Langerhans
(secretes
insulin and
glucagon)
Pancreas
Acinar cells
(secrete
enzymes)
Islet of
Langerhans
(secretes
insulin and
glucagon)
Thymus
Gland
• A) Cortex
• B) Medulla
Adrenal Gland
Adrenal Gland
Cortex
Adrenal
Gland
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