Chapter 9 The Endocrine System Flashcards
Biology 2
What are the steps of direct gene activation?
Hormone binds to a receptor in the cytoplasm. 2) Hormone-receptor complex enters the nucleus. 3) Hormone-receptor complex binds to specific DNA sequences.
What are the steps of a second messanger system?
What is meant by a hormonal stimulus?
What is humoral stimuli?
Changing blood levels of certain ions and nutrients stimulate hormone release
What is meant by ductless gland?
Explain the difference between dwarfism and gigantism as far as the pituitary gland is concered.
What are tropic hormones
What causes a goiter to form
What is hyperthyroidism?
Why is iodine important for proper thyroid gland function?
What hormone is called the “sleep hormone”, and which endocrine organ produces it?
Melationin, produced by the Pineal gland
What hormone stimulates the kidneys to reabsorb more sodium ions?
Which 2 digestive system organs are important sources of hormone associated with digestion?
