introduction to the endocrine system

Question 1

Where is the pituitary gland and what are its functions

Answer 1

Situated below the brain, encased in the skull “ master gland”, hormones secreted from PG to control growth, metabolism, aspects of preggo e.g. childbirth and breastfeeding, water n salt, temp reg n pain relief.

Question 2

Where are the thyroid and parathyroid glands located and why are they important

Answer 2

They are situated in the neck and they are important for metabolic rate and calcium homeostasis

Question 3

Where is the pancreas located and what are its functions

Answer 3

Located in the abdomen- behind the stomach

endo&exocrine function produces insulin and, glucagon

Question 4

Where are the adrenal glands located and what are their functions

Answer 4

• Lie on top of kidneys
• divided into an outer cortex and an inner medulla
• medulla is concerned with stress response, cortex with stress, sodium and glucose homeostasis.

Question 5

What is the role of the gonads

Answer 5

Secrete reproductive hormones and responsible for the development of secondary sexual characteristics and reproduction

Question 6

Describe the structure and properties of the peptide hormones

Answer 6

Water-soluble, susceptible to protease attack as they are a chain of AA, unable to cross the plasma membrane and acts on plasma membrane receptors.