chapter 18: Endocrine System

Question 1

3 categories of lipid soluble hormones

Answer 1

1) Steroid Hormones
2) Thyroid Hormones
3) Nitric Oxide (NO)

Question 2

in regards to hormone activity what is down regulation ?

Answer 2

If lots of hormone is present the # of receptors will DECREASE

Question 3

Corticotrophs secrete what hormones?

Answer 3

Adrenocorticotrophic hormone (ACTH) which secretes cortisol and Melanocyte stimulating hormone (MSH)

Question 4

Name 5 types of ant pituitary cells

Answer 4

Somatotrophs
Thyrotrophs
Gonadotrophs
Lactotrophs
Corticotrophs

Question 5

What is the main function of human growth hormone?

Answer 5

Promote synthesis and secretion of insulin like growth factors (IGF’s)

Question 6

The posterior Pituitary releases what 2 hormones ?

Answer 6

Oxytocin and ADH (anti-diuretic hormone )

Question 7

Pineal gland secretes what?

Answer 7

Melatonin

Question 8

Damage to what type of pancreatic islet cells are associated with type 1 diabetes

Answer 8

beta cells (B cells) -> produce insulin

Question 9

What pancreatic islet cells secrete glucagon?

Answer 9

Alpha cells (A) cells

Question 10

What is the role of parathyroid hormone?

Answer 10

Increase bone reabsorption, release calcium in the blood

Question 11

Where is oxytocin produced ?

Answer 11

Hypothalamus