Which of the following statement is correct in relation to the endocrine system?
Adenohypophysis is under direct neural regulation of the hypothalamus
Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones
Non- nutrient chemicals produced by the body in trace amount that act as intercellular messenger are known as hormones
Releasing and inhibitory hormones are produced by the pituitary gland
Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom
Endocrine gland | Hormone | Function/ deficiency symptoms |
Anterior pituitary | Oxytocin | Stimulates uterus contraction during child birth |
Posterior pituitary | Growth Hormone (GH) | Oversecretion stimulates abnormal growth |
Thyroid gland | Thyroxine | Lack of iodine in diet results in goitre |
Corpus luteum | Testosterone | Stimulates spermatogenesis |
Which of the following pituitary hormones is secreted without the involvement of a Releasing Hormone (RH)?
Thyroid Stimulating Hormone (TSH)
Follicle Stimulating Hormone (FSH)
Oxytocin
Prolactin
Which of the following hormones is a derivative of fatty acid?
Gastrin
Thyroxin
Estrogen
Prostaglandins
Cells die at the time of release of secretory materials in
holocrine gland
apocrine gland
merocrine gland
mixed or apocrine gland
Melatonin is produced from
pineal gland
adrenal gland
parathyroid gland
ovary
A.
pineal gland
Pineal gland secretes a hormone called melatonin. This hormone plays a very important role in the regulation of a 24 hour (diurnal) rhythm of our body. It also influences metabolism, pigmentation, the menstrual cycle as well as our defense capability.
Adrenal gland is composed of two types of tissues, adrenal medulla and adrenal cortex. Adrenal medulla, secretes hormones adrenaline or epinephrine and noradrenaline or norepinephrine. Adrenal cortex secretes many hormones called as corticoids.
The parathyroid glands secrete a peptide hormone called parathyroid hormone. This hormone increases the Ca2+ levels in the blood.
Ovary produces two groups of steroid hormones called oestrogen and progesterone.
Which one of the following is called intra-specific chemical messenger?
Pheromones
Prostaglandins
Corticotrophin
Catecholamines
Which one of the following secretes glucagon?
Beta () cells of islets of Langerhans
Alpha () cells of islets of Langerhans
Acidophilic cells of adenohypophysis
Basophilic cells of adenohypophysis
Which one of the following enzymes is responsible for the conversion of norepinephrine to epinephrine?
Catecholamine-O-methyltransferase
Phenylalanine-N-methyltransferase
DOPA decarboxylase
Monoamine oxidase