HORMONES ONE

Question 1

Differentiate between hypothalamus and pituitary hormones:

Answer 1

• hypothalamus is the master switchboard

- pituitary gland is the master gland

Question 2

What hormones are part of the posterior pituitary gland?

Answer 2

ADH and oxytoxin

Question 3

Explain the function of the thyroid hormone

Answer 3

• acted upon by TSH
• produces T4 (thyroxine) and T3
• then regulates metabolism

Question 4

What are the functions are the parathyroid hormones?

Answer 4

• regulate the calcium balance

- increase calcium blood levels

Question 5

What are the names of the hormones that are produced by the renal cortex and renal medulla and what are the names of them?

Answer 5

• ACTH- acts on adrenal glands
• Released in response to stress (triggers production of cortisol and epinephrine)
• Adrenal medulla- part of the autonomic nervous system and secretes adrenaline and norepinephrine in a ratio of 4:1
• Adrenal cortex- secretes mineralocorticoids, glucocorticoids, sex steroids

Question 6

What is the function of growth hormones?

Answer 6

• make you bigger

- mediated by the effects of IGF-1

Question 7

What are the effects of the sex hormones that are produced by the gonads?

Answer 7

• LH men, FSH women stimulates the gonads stimulating sperm and egg development

Question 8

Explain the principles of blood glucose regulation by pancreatic hormones:

Answer 8

• Alpha cells- secrete glucagon
• Beta cells- secrete insulin
• Delta cells- somatoserin

Question 9

What are the actions of melatonin?

Answer 9

• pineal gland
• decreases motor activity and increases fatigue
• can have an effect upon the breeding season