Chemical Coordination and Integration

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

Zymogenic cells of gastric gland secrete

• pepsinogen

• trypsin

• pepsin

• chymotrypsin

Which one of the following is called intra-specific chemical messenger?

• Pheromones

• Prostaglandins

• Corticotrophin

• Catecholamines

Which one of the following secretes glucagon?

• Beta ($\mathrm{\beta }$) cells of islets of Langerhans

• Alpha ($\mathrm{\alpha }$) 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