Question

In: Anatomy and Physiology

Prolactin is secreted by the: A. Pancreas B. Adrenal Glands C. Adenohypophysis D. Neurohypophysis E. Parathyroid...

Prolactin is secreted by the:

A. Pancreas

B. Adrenal Glands

C. Adenohypophysis

D. Neurohypophysis

E. Parathyroid Glands

F. Mammary Glands

G. Liver

H. Muscles

Solutions

Expert Solution

Answer is option C. Adenohypophysis

Prolactin is a hormone secreted by lactotrophs in the anterior pituitary.
Pituitary gland is mainly divided into anterior pituitary(adenohypophysis) and posterior pituitary(neurohypophysis)

Anterior pituitary secretes mainly 7 hormones. They are

growth hormone(GH)
thyroid-stimulating hormone (TSH)
adrenocorticotropic hormone (ACTH)
follicle-stimulating hormone (FSH)
luteinizing hormone (LH)
beta endorphin
prolactin.

Posterior pituitary does not produce any hormones. It only store and releases hormones secreted by hypothalamus.

Pancreas

Endocrine pancreas produces certain hormones which are insulin, glucagon, somatostatin and gastrin.

Exocrine pancreas secretes digestive enzymes, water and bicarbonate to help with digestion.

Adrenal glands

Adrenal gland is mainly divided into 2 parts

Cortex and medulla

Adrenal cortex is further divided into 3

1. Zona glomerulosa: secretes mineralocorticoids

2. Zona fasciculata: secretes glucocorticoids

3. Zona reticularis: secretes sex corticoids

Adrenal medulla secretes mainly catecholamines. That is adrenaline and nor adrenaline

Parathyroid glands

It produces parathyroid hormone which plays an important role in Ca2+ metabolism.

Mammary glands

They produce progesterone and prolactin during pregnancy and only milk produced after childbirth.

Liver

It produces some hormones which are

Insulin-like Growth Factor-1 (IGF-1)
Angiotensinogen.
Thrombopoietin.
Betatrophin.
hepcidin

Muscles

It produces an unidentified hormone named musculin.

Sydney Mullin answered 10 months ago

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