Hypothalamus-Pituitary Axis

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What is the primary way in which Growth Hormone (GH) exerts its effects on growth?

By stimulating the release of Somatomedins (IGF) (correct)

By increasing the synthesis of carbohydrates

By directly stimulating cell growth

By increasing the breakdown of proteins

What is the effect of GH on protein metabolism?

It decreases the transport of amino acids across the cell membrane

It has no effect on protein metabolism

It increases the breakdown of proteins

It increases the synthesis of proteins (correct)

What is the effect of GH on carbohydrate metabolism?

It increases the synthesis of glycogen

It increases the utilization of glucose for energy

It decreases the uptake of glucose by cells (correct)

It has no effect on carbohydrate metabolism

What is the correlation between GH and glucose/insulin?

GH fails to cause growth in the absence of glucose or insulin Signup and view all the answers

What is the characteristic of GH secretion during deep sleep?

It increases during the first 2 hours of deep sleep Signup and view all the answers

What is the effect of starvation on GH secretion?

It increases GH secretion Signup and view all the answers

What is the height of Chandra Bahadur Dangi, the shortest person from Nepal?

21 and a half inches Signup and view all the answers

Which hormone is responsible for causing delivery?

Oxytocin Signup and view all the answers

What is the effect of Antidiuretic Hormone on arterioles at higher concentrations?

Constricts them Signup and view all the answers

What is the primary function of Antidiuretic Hormone?

Conserving body water Signup and view all the answers

What is the effect of a decrease in blood volume on Antidiuretic Hormone secretion?

It increases Signup and view all the answers

What is the effect of hemorrhage on Antidiuretic Hormone release?

It stimulates it Signup and view all the answers

Which hormone is associated with diabetes mellitus?

Growth Hormone Signup and view all the answers

What is the chemical structure of Oxytocin?

Nonapeptide Signup and view all the answers

What percentage of the pituitary population is composed of somatotrophs?

40-50% Signup and view all the answers

Which hypothalamic hormone inhibits the secretion of Prolactin?

Prolactin inhibiting hormone Signup and view all the answers

What is the target tissue for Thyrotropin (TSH) secreted by thyrotrophs?

Thyroid gland Signup and view all the answers

What is the primary function of Growth Hormone (GH) secreted by somatotrophs?

Regulation of cell growth and division Signup and view all the answers

Which of the following hypothalamic hormones stimulates the secretion of Adrenocorticotropic Hormone (ACTH)?

Corticotropin releasing hormone (CRH) Signup and view all the answers

What is the percentage of pituitary population composed of corticotrophs?

15-20% Signup and view all the answers