Chemically hormones are:
1. Proteins, steroids & biogenic amines
2. Proteins only
3. Steroids only
4. Biogenic amines only
MSH is secreted by:
1. Anteria lobe of the pituitary
2. Middle lobe of the pituitary
3. Posterior lobe of the pituitary
4. Endostyle
Adrenaline has a direct effect on:
1. S.A. Node
2. β-cells of Langerhans
3. Dorsal root of spinal cord
4. Epithelial cells of the stomach
Function of thyrocalcitonin:
1. To reduce the calcium level in blood
2. To increase the calcium level in blood
3. Oppose the action of thyroxine
4. Maturation of gonads
Contraction in gall is bladder is stimulated by:
1. CCK
2. PZ
3. Secretin
4. Enterogastrone
Erythropoietin, hormone which stimulates R.B.C. formation, is produced by:
1. | The cells of bone marrow |
2. | Juxtaglomerular cells of the kidney |
3. | Alpha cells of the pancreas |
4. | The cells of the rostral adenohypophysis |
Select the correct matching of a hormone, its source and its function:
Hormone | Source | Function | |
1. | Norepineph rine |
Adrenal medulla | Increases heartbeat, rate of respiration and alertness |
2. | Glucagon | Beta-cells of Islets of Langerhans |
Stimulates glycogenolysis |
3. | Prolactin | Posterior pituitary |
Regulates growth of mammary glands and milk formation in females |
4. | Vasopressin | Posterior pituitary |
Increases loss of water through urine |
A rise in a heartbeat, increase in the cardiac output, blood pressure and blood sugar occurs during an emergency, by the hormone
1. Aldosterone
2. Antidiuretic hormone
3. Epinephrine
4. Oxytocin
(a) | Stimulates the process of bone resorption. |
(b) | Decreases Ca2+ level in blood. |
(c) | Reabsorption of Ca2+ by renal tubules. |
(d) | Decreases the absorption of Ca2+ from digested food. |
(e) | Increases metabolism of carbohydrates. |
Normal sleep-wake cycle in a human body is maintained by the secretion of:
1. Thyroid gland
2. Thymus gland
3. Pineal gland
4. Pituitary gland