Question

Question 3 List the hormones secreted by the following:

(a) Hypothalamus (b) Pituitary (c) Thyroid

(d) Parathyroid (e) Adrenal (f) Pancreas

(g) Testis (h) Ovary (i) Thymus

(j) Atrium (k) Kidney (l) G-I Tract

Class - XI - Biology Chapter Chemical Coordination and Integration Page No. 341

Answer 1

(a) Hypothalamus
→ Thyrotropin Releasing Hormone (TRH)
→ Gonadotrophin releasing hormone (GnRH)
→ Somatotropin-releasing hormone
→ Adrenocorticotrophin-releasing hormone
→ Prolactin releasing Hormone
→ Growth-inhibiting hormone
→ Melanocyte-inhibiting hormone

(b) Pituitary
→ Growth Hormone (GH)
→ Prolactin (PRL)
→ Thyroid Stimulating Hormone (TSH)
→ Adrenocorticotrophic Hormone (ACTH)
→ Luteinizing Hormone (LH)
→ Follicle Stimulating Hormone (FSH)
→ Melanocyte Stimulating hormone (MSH)
• Neurohypophysis also known as posterior pituitary
→ Oxytocin
→ Vasopressin

(c) Thyroid
→ Thyroxin
→ Triiodothyronin
→ Calcitonin

(d) Parathyroid
→ Parathyroid Hormone

(e) Adrenal
→ Mineralocorticoids (mainly aldosterone)
→ Glucocorticoids (mainly cortisol)
→ Adrenaline
→ Nor-adrenaline

(f) Pancreas
→ Insulin
→ Glucagon

(g) Testis
→ Testosterone

(h) Ovary
→ Estrogen
→ Progesterone

(i) Thymus
→ Thymosins

(j) Atrium
→ Atrial Natriuretic factor

(k) Kidney
→ Erythropoietin

(l) G-I Tract
→ Gastrin
→ Secretin
→ Cholecystokinin (CCK)
→ Gastric inhibitory peptide (GIP)