Chemical Coordination and Integration

Which one of the following statements is correct?

1. Endocrine glands regulate neural activity, but not vice versa.
2. Neurons regulate endocrine activity, but not vice versa.
3. Endocrine glands regulate neural activity, and nervous system regulates endocrine glands.
4. Neither hormones control neural activity nor the neurons control endocrine activity.

Which one of the following hormones is modified amino acid?

1. Epinephrine
2. Progesterone
3. Prostaglandin
4. Estrogen

Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

1. Luteinizing hormone – Failure of ovulation
2. Insulin – Diabetes insipidus
3. Thyroxine – Tetany
4. Parathyroid – Diabetes mellitus

Chemically hormones are

1. biogenic amines only
2. proteins, steroids and biogenic amines
3. proteins only
4. steroids only

Duodenum, which has characteristic Brunner's glands, secretes two hormones called

1. kinase, estrogen
2. secretin, cholecystokinin
3. prolactin, parathormone
4. estradiol, progesterone.

Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

1. Relaxin – Gigantism
2. Prolactin – Cretinism
3. Parathyroid hormone – Tetany
4. Insulin – Diabetes insipidus

Acromegaly is caused by

1. excess of STH
2. excess of thyroxine
3. deficiency of thyroxine
4. excess of adrenaline

Adrenaline directly affects

1. S.A. node
2. -cells of Langerhans
3. dorsal root of spinal nerve
4. epithelial cells of stomach

When both ovaries are removed from rat then which hormone is decreased in blood?

1. Oxytocin
2. Prolactin
3. Estrogen
4. Gonadotropin releasing factor

Melatonin is secreted by

1. pineal body
2. skin
3. pituitary gland
4. thyroid