Alexandra Bozan
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Alexandra Bozan
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Quiz: Endocrine System

Question 1 of 23

1

All of the following are nonsteroid hormones except:

Select one of the following:

  • oxytocin

  • calcitonin

  • cortisol

  • glucagon

Explanation

Question 2 of 23

1

Which of the following is not a characteristic of the endocrine system?

Select one of the following:

  • Chemical messenger travels short distance.

  • Effector tissues include virtually all tissues.

  • Characteristics of regulatory effects are slow to appear and long-lasting.

  • Receptors are located on the plasma membrane or within the effector cell.

Explanation

Question 3 of 23

1

All of the following are true statements except:

Select one of the following:

  • there are at least 16 different prostaglandins

  • the first prostaglandin was identified in semen

  • aspirin produces some of its effects by increasing PGE synthesis

  • PGFs have been used to induce labor and accelerate the delivery of a baby

Explanation

Question 4 of 23

1

Endocrine glands may be made up of

Select one of the following:

  • glandular epithelium

  • neurosecretory tissue

  • ducts to collect interstitial fluid

  • both glandular epithelium and neurosecretory tissue

Explanation

Question 5 of 23

1

The many hormones secreted by endocrine tissues are structurally classified as

Select one of the following:

  • steroid or nonsteroid hormones

  • anabolic or catabolic hormones

  • sex or nonsex hormones

  • tropic or hypotropic hormones

Explanation

Question 6 of 23

1

Which of the following is a function of glucagon?

Select one of the following:

  • Promotes the entry of glucose into tissue cells

  • Tends to decrease blood glucose concentrations

  • Tends to increase blood glucose concentrations

  • Converts glucose into glycogen

Explanation

Question 7 of 23

1

Principal thyroid hormone.

Select one of the following:

  • T4

  • T3 (triiodothyronine)

  • thyroxine

  • T4 and thyroxine

Explanation

Question 8 of 23

1

The production of thyroid hormone is stimulated by another hormone from the:

Select one of the following:

  • anterior pituitary

  • posterior pituitary

  • thyroid gland.

  • parathyroid gland

Explanation

Question 9 of 23

1

The common molecule from which all steroid hormones are derived is

Select one of the following:

  • phospholipids

  • cholesterol

  • lecithin

  • triglycerols

Explanation

Question 10 of 23

1

The first step in the renin-angiotensin mechanism is:

Select one of the following:

  • angiotensin II circulates to the adrenal cortex, stimulating the secretion of aldosterone

  • renin causes angiotensinogen to be converted to angiotensin I

  • the juxtaglomerular apparatus secretes renin into the blood in response to a fall in the blood pressure within the kidney

  • aldosterone causes increased reabsorption of sodium, which causes increased water retention

Explanation

Question 11 of 23

1

Which of the following glands is not regulated by the pituitary:

Select one of the following:

  • Thyroid

  • Ovaries

  • Adrenals

  • Thymus

Explanation

Question 12 of 23

1

Fill the blank spaces to complete the text.

In comparison with the nervous system, the regulatory effects of the endocrine system are to appear, but lasting

Explanation

Question 13 of 23

1

The vascular link between the hypothalamus and adenohypophysis is called the:

Select one of the following:

  • hypophyseal portal system

  • hepatic portal system

  • releasing hormone portal system

  • both hypophyseal portal system and releasing hormone portal system

Explanation

Question 14 of 23

1

The substance that acts as a second messenger at the cellular level is:

Select one of the following:

  • cyclic AMP

  • mRNA

  • ATP

  • GTP

Explanation

Question 15 of 23

1

Which of the following hormones is not secreted by the adrenal medulla:

Select one of the following:

  • epinephrine

  • norepinephrine

  • adrenaline

  • all are secreted by adrenal medulla

Explanation

Question 16 of 23

1

Fill the blank spaces to complete the text.

target other endocrine glands and stimulate their growth and secretion

Explanation

Question 17 of 23

1

When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called:

Select one of the following:

  • synergism

  • permissiveness

  • antagonism

  • combination

Explanation

Question 18 of 23

1

Fill the blank space to complete the text.

has the opposite effect of parathyroid hormone

Explanation

Question 19 of 23

1

Fill the blank space to complete the text.

affects milk secretion

Explanation

Question 20 of 23

1

Fill the blank space to complete the text.

is a Prostaglandin that plays a role in the development of a fever:

Explanation

Question 21 of 23

1

Fill the blank space to complete the text.

is the hormone that causes ejection of milk into the mammary ducts.

Explanation

Question 22 of 23

1

Prolactin is not a tropic hormone?

Select one of the following:

  • True
  • False

Explanation

Question 23 of 23

1

Is Steroid a structural classification of hormones?

Select one of the following:

  • True
  • False

Explanation

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