18.5 control of hormone secretion

Question 1

The release of most hormones occurs in short or long bursts with lots or little secretion between bursts?

Answer 1

short bursts, little or no secretion

Question 2

When stimulated, an endocrine gland will release its hormone in more frequent bursts which does what to the concentration of hormone in the blood?

Answer 2

increase concentration

Question 3

In absence of stimulation does the blood level of the hormone increase or decrease?

Answer 3

decrease

Question 4

What does regulation of secretion prevent?

Answer 4

overproduction or underproduction of any given hormone (helps maintain homeostasis)

Question 5

How is hormone secretion regulated? (3 thing)

Answer 5

1. by signals from the nervous system
2. by chemical changes in the blood
3. other hormones

Question 6

Nerve impulses to the adrenal medullae regulate the release of what hormone?

Answer 6

epinephrine

Question 7

Blood Ca2+ level regulate the secretion of what hormone?

Answer 7

parathyroid hormone

Question 8

Most hormonal regulatory systems work via positive or negative feedback?

Answer 8

negative