Endocrine

Question 1

What organs make up the Endocrine System? (6)

Answer 1

1. Pituitary
2. Thyroid
3. Parathyroid
4. Adrenal
5. Pancreas
6. Gonads

Question 2

The endocrine system is a blood born messenger system which controls and integrates many body functions: (5)

Answer 2

1. Reproduction
2. Metabolism (organic + mineral)
3. Energy
4. Growth

Question 3

The endocrine system works quicker than the nervous system- true or false

Answer 3

false

it works slower

Question 4

Characteristics of the Endocrine System:

Answer 4

• Slow and General
• Blood Borne
• Receptors located inside (steroid hormone) and outside (cell membrane- protein/peptide hormones) of cell

HORMONES CAN’T WORK WITHOUT RECEPTORS!
(i.e.- type II diabetes b/c no insulin receptors

Question 5

Characteristic of the Nervous System:

Answer 5

• fast, precise, local
• action potentials
• receptors only at synapse

Question 6

True or False- Ever cell has a receptor for Insulin (Pancreas), but not every cell has a receptor for parathyroid hormones.

Answer 6

TRUE

Question 7

What is the relationship between the Hypothalamus and the posterior pituitary?

Answer 7

Neurohypophysis= Posterior Lobe

Hormones formed in the hypothalamus travel down axons and stored in axon terminals in posterior lobe (Neurohypophysis)

Question 8

What connects the Hypothalamus to the Pituitary?

Answer 8

the Infundibulum (Pituitary Stalk)

Question 9

How does the hypothalamus control activities of the Ant. Pituitary?

Answer 9

Hypothalamic secretions serve as RELEASING FACTORS and INHIBITING FACTORS for secretions of the ant. lobe

Question 10

what are releasing factors?

Answer 10

Releasing Factors= short chain fatty acids

Not quite hormones, but stimulate/inhibit the release of anterior pituitary hormones

Question 11

What are some examples of Releasing Factors?

Answer 11

GHRH, GHRF, Dopamine (Inhibit PRL), GnRH (stimulate FSH, LH), ACRH