Endocrine System Histology and Models

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Presentation transcript:

Endocrine System Histology and Models

ENDOCRINE SYSTEM Questions Function of the endocrine system: to maintain homeostasis Thymus gland: cortex and medulla (site of maturation of white blood cells) Thyroid gland (secretes thyroid hormone and calcitonin) Parathyroid gland (secretes parathyroid hormone, which increases blood calcium) Adrenal gland: Capsule, cortex (secretes aldosterone to increase salt reabsorption which raises blood pressure, androgens and estrogens, and cortisol); medulla (secretes epinephrine) Pituitary gland: Posterior pituitary (AKA neurohypophysis or pars nervosa) secretes oxytocin and ADH Anterior pituitary (AKA adenohypophysis or pars distalis) secretes MSH, GH, ACTH, PRL, TSH, LH, FSH. (melons grow and produce through late fall) Pineal Gland: Pinealocytes, pineal sand (secretes melatonin)

ENDOCRINE MODELS Thyroid gland Adrenal gland Thymus gland Pituitary gland Pineal gland Ovary/Testes Pancreas

Adrenal and Thyroid glands

Thyroid Gland

Parathyroid Glands

Thymus Gland

Pituitary gland Pineal gland

Ovary

Testes

Pancreas

Adrenal gland Kidney

Thyroid Gland Secretes calcitonin and thyroid hormone

Thyroid Gland

SKIP

SKIP

SKIP

SKIP

SKIP

Parathyroid Gland

Pineal Gland: Secretes melatonin 2) Pineal sand 1) Pinealocytes

Pineal Gland

Pituitary Gland

Pituitary Gland Anterior pituitary (Pars distalis) Posterior pituitary (pars nervosa) Anterior pituitary (Pars distalis)

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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