Endocrine systems

Question 1

What is the definition of a hormone?

Answer 1

A chemical messenger produced an secreted by a gland or cell that is transported in the bloodstream to a target organ or tissue to elicit a physiological response

Question 2

Name the THREE classes of hormone

Answer 2

Protein/peptide
Cholesterol derivatives
Modified amino acids

Question 3

What is ectopic hormone secretion?

Answer 3

Hormone made outside the normal endocrine gland

Question 4

What does prolactin do?

Answer 4

Causes lactation

Question 5

What does the H-P-Gonad axis result in the production of?

Answer 5

Testosterone

Question 6

What does the H-P-Ovary axis result in the production of?

Answer 6

GnRH stimulating FSH and LH

Question 7

Name the THREE disorders associated with growth hormone secretion

Answer 7

Growth hormone deficiency in childhood - Dwarfism
Over secretion of growth hormone in children - Giantism
Over secretion of growth hormone in adult - Acromegaly

Question 8

What causes Cushing syndrome?

Answer 8

Over production of cortisol

Question 9

What causes Addison’s disease?

Answer 9

Lack of adrenal function