Chapter 45 – The Endocrine System
45-1
Chapter 45
The Endocrine System
Check All That Apply Questions
1. Your general practitioner considers your unusual set of symptoms, and says, “You seem to
have a problem with maintaining homeostasis in your body.” Which type of specialist
might the doctor refer you to? (Check two.)
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about homeostasis? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
Multiple Choice Questions
2. A ______ is a regulatory molecule that is secreted into the blood by an endocrine gland.
3. A hormone is a regulatory molecule that is secreted into the blood by an endocrine gland.
What is wrong with this definition?
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about hormones? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
4. You are a professor supervising first year medical students. One student is examining the
adrenal gland of his cadaver. “Wow!” he exclaims, “This person must have had an endocrine
problem. Their adrenal gland lacks any kind of duct connecting it to the bloodstream. The
hormones could only have oozed out.” How do you respond?
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about adrenal gland? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
5. Some intercellular regulatory molecules that exert only very local effects are called
________ regulators.
6. What is a likely explanation for why nothing happened in your experiment?
Chapter 45 – The Endocrine System
45-7
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about hormones? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
7. How could you improve your experiment?
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about hormones? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
45–10
8. The ________ lobe of the pituitary gland appears fibrous because it contains axons
originating from hypothalamic neurons.
Check All That Apply Questions
9. The anterior pituitary gland is controlled by which three types of signals? (Check three.)
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about the anterior pituitary gland? What other information is
related to the question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Multiple Choice Questions
10. There is a molecule in black licorice that inhibits an enzyme which normally limits
activation of mineralocorticoid receptors. Thus, overconsumption of licorice can mimic the
effect of excess aldosterone. What would be the result?
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about the aldosterone? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
11. A novel disease causes destruction of the adrenal glands. If a patient with this disease
failed to receive aldosterone replacement therapy, what would result?
Chapter 45 – The Endocrine System
45–14
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about aldosterone? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
45–15
12. The islets of Langerhans located in the _______ secrete both insulin and glucagon.
13. Ecdysone and juvenile hormone regulate molting and ____________ in insects.
Yes / No Questions
14. Oxytocin is a peptide hormone that causes uterine contractions in childbirth and
stimulates milk secretion from nipples. Do men have oxytocin?
Chapter 45 – The Endocrine System
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about oxytocin? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
Multiple Choice Questions
15. Women often receive synthetic oxytocin to induce childbirth or augment contractions.
What is an important consideration about the use of synthetic oxytocin?
Chapter 45 – The Endocrine System
45–18
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about oxytocin? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 45 – The Endocrine System
45–19
16. A couple visits a fertility clinic to determine the basis of their difficulty in conceiving a
child. They are surprised to hear they will both be tested for levels of two of the same
hormones, which play roles in the ovarian cycle and sperm production. Which hormones are
they?
Chapter 45 – The Endocrine System
45–20
Clarify Question
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content
What do you already know about sex hormones? What other information is related to the
question?
Choose Answer
Given what you now know, what information is most likely to produce the correct answer?
Reflect on Process
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?