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
(a) Hypothalamus: Hormones secreted with the aid of using the hypothalamus consist of: (1) Releasing hormones: These hormones stimulate the secretions of the pituitary hormone. Examples of those hormones are: (i) Gonadotrophin-freeing hormone (ii) Thyrotrophin-freeing hormone (iii) Somatotropin-freeing hormone (iv) Adrenocorticotrophin-freeing hormone (2) Inhibiting hormones: These hormones inhibit the secretions of the pituitary hormone. Examples of those hormones are: (i) Somatostatin (ii) Growth-inhibiting hormone (iii) Melanocyte-inhibiting hormone (b) Pituitary: The pituitary gland has additives i.e., adenohypophysis and neurohypophysis. Hormones secreted via way of means of the adenohypophysis are: (i) Growth hormone (GH) (ii) Prolactin (iii) Thyroid-stimulating hormone (TSH) (iv) Adrenocorticotrophic hormone (ACTH) (v) Luteinizing hormone (LH) (vi) Follicle-stimulating hormone (FSH) (vii) Melanocyte-stimulating hormone (MSH) Hormones secreted via way of means of the neurohypophysis are: (i) Oxytocin (ii) Vasopressin (c) Thyroid: The thyroid gland secretes 3 hormones namely, thyroxin, triiodothyronin, and calcitonin.(d) Parathyroid: The parathyroid gland secretes a hormone called the parathyroid hormone. (e) Adrenal: The adrenal gland is split into parts, the outer adrenal cortex and the internal adrenal medulla. Hormones of adrenal cortex consist of the following: (i) Mineralocorticoids: The hormone secreted is referred to as aldosterone. (ii) Glucocorticoids: The hormone secreted is cortisol. Hormones of adrenal medulla are adrenaline and nor-adrenalin. (f) Pancreas: Hormones secreted with the aid of using the pancreas are insulin and glucagon. (g) Testis: The hormone secreted with the aid of using the testis is testosterone. (h) Ovary: The hormone secreted via way of means of the ovary consists of estrogen and progesterone. (i) Thymus: Hormones secreted through the thymus are thymosins. (j) Atrium: The partitions of the atrium secrete atrial natriuretic factor. (k) Kidney: The hormone secreted through kidney is erythropoietin. (l) G-I tract: The hormones secreted with the aid of using the G-I tract are Gastrin, secretin, cholecystokinin (CCK), and gastric inhibitory peptide (GIP).
