Endocrine System

Question 1

which hormone is produced by the adrenal gland, when is it produced and what are its effects?

Answer 1

adrenaline - fight or flight situations - increases heart rate and gets our blood pumping faster

Question 2

where is the hormone thyroxine produced, what is its role and how is the level controlled?

Answer 2

thyroid gland - controls metabolism, growth and development - pituitary gland releases TSH if levels are too low to stimulate thyroid (negative feedback)

Question 3

how does the endocrine system produce a response to a stimulus?

Answer 3

-rely on hormones which are secreted by the glands and transported into the blood
-they spread slowly but effects last longer
-more general as they interact with many different cells

Question 4

compare the hormonal effects with the response of the nervous system

Answer 4

-rely on electrical impulses that are transferred along nerve cells
-very fast so effects don’t last as long
-are classed as precise

Question 5

identify the main glands from head to toe in the human body

Answer 5

-pituitary gland (brain)
-thyroid gland (neck)
-adrenal gland
-pancreas
-ovaries/testies