Multiple Choice
Which of the following is a problem with the long-term use of glucocorticoids, such as cortisone, to treat inflammation?
43. Endocrine System
Endocrine System
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following statements about the catecholamines secreted by the adrenal medulla is correct?
A
They are synthesized from the cholesterol.
B
They decrease the rate of glycogen breakdown in the liver and skeletal muscles.
C
They decrease the rate of oxygen delivery to body cells.
D
They are released in response to FSH.
E
Epinephrine and norepinephrine are catecholamines.
Verified step by step guidance1
Catecholamines, including epinephrine and norepinephrine, are synthesized from the amino acid tyrosine, not cholesterol. Cholesterol is a precursor for steroid hormones, not catecholamines.
Catecholamines increase the rate of glycogen breakdown in the liver and skeletal muscles, not decrease it. This process is known as glycogenolysis, which provides glucose for energy during stress or 'fight or flight' responses.
Catecholamines increase the rate of oxygen delivery to body cells by stimulating heart rate and dilating airways, rather than decreasing it.
Catecholamines are released in response to stress signals from the nervous system, not in response to follicle-stimulating hormone (FSH), which is involved in reproductive processes.
Epinephrine and norepinephrine are indeed catecholamines, which are secreted by the adrenal medulla in response to stress and play a key role in the body's 'fight or flight' response.
Related Videos
Related Practice
Endocrine System practice set
Problem sets built by lead tutorsExpert video explanations