Question 1

Plasma levels of protein-bound thyroxine fluctuate greatly in response to the body's use of thyroxine.

Accepted Answer

A) True 
 B)False

Question 2

Thyroid hormones bind to receptors which

Accepted Answer

A) activate tyrosine kinase. 
B) regulate gene transcription. 
C) stimulate production of cyclic AMP. 
D) stimulate production of diacylglycerol. 
A) activate tyrosine kinase. 
B) regulate gene transcription. 
C) stimulate production of cyclic AMP. 
D) stimulate production of diacylglycerol.

Question 3

What hormone stimulates uterine contractions during labor and milk-ejection during lactation?

Accepted Answer

A) prolactin 
B) ADH 
C) oxytocin 
D) luteinizing hormone 
A) prolactin 
B) ADH 
C) oxytocin 
D) luteinizing hormone

Question 4

To induce full cellular effects,thyroid hormones also require the actions of

Accepted Answer

A) adrenocorticotropin. 
B) melatonin. 
C) 9-cis-retinoic acid. 
D) somatomedins. 
A) adrenocorticotropin. 
B) melatonin. 
C) 9-cis-retinoic acid. 
D) somatomedins.

Question 5

Viagra is a drug that creates penile erection by

Accepted Answer

A) indirectly decreasing the breakdown of cGMP. 
B) indirectly increasing cGMP production. 
C) directly decreasing nitric oxide levels. 
D) directly increasing nitric oxide levels. 
A) indirectly decreasing the breakdown of cGMP. 
B) indirectly increasing cGMP production. 
C) directly decreasing nitric oxide levels. 
D) directly increasing nitric oxide levels.

Question 6

____________ regulators mediate the function of the cells in which they are synthesized.

Accepted Answer

A) Autocrine regulators 
B) Endocrine regulator. 
C) Paracrine regulators. 
D) Exocrine regulators. 
A) Autocrine regulators 
B) Endocrine regulator. 
C) Paracrine regulators. 
D) Exocrine regulators.

Question 7

Prolactin injections may be used to induce labor.

Accepted Answer

A) True 
 B)False

Question 8

Cellular actions of insulin could be inhibited by

Accepted Answer

A) decreasing intracellular calmodulin. 
B) stimulating protein kinase activity. 
C) inhibiting translation. 
D) inhibiting receptor phosphorylation. 
A) decreasing intracellular calmodulin. 
B) stimulating protein kinase activity. 
C) inhibiting translation. 
D) inhibiting receptor phosphorylation.

Question 9

Endocrine glands secrete their products into ducts.

Accepted Answer

A) True 
 B)False

Question 10

Drugs that are useful for treating asthma are

Accepted Answer

A) COX-2 inhibitors. 
B) anti-leukotrienes. 
C) COX-3 inhibitors. 
D) COX-1 inhibitors. 
A) COX-2 inhibitors. 
B) anti-leukotrienes. 
C) COX-3 inhibitors. 
D) COX-1 inhibitors.

Question 11

Increased circulating concentrations of testosterone would stimulate

Accepted Answer

A) decreased secretion of growth hormone. 
B) decreased secretion of adrenocorticotropin. 
C) decreased secretion of luteinizing hormone. 
D) decreased secretion of thyroid stimulating hormone. 
A) decreased secretion of growth hormone. 
B) decreased secretion of adrenocorticotropin. 
C) decreased secretion of luteinizing hormone. 
D) decreased secretion of thyroid stimulating hormone.

Question 12

The posterior pituitary gland produces two hormones.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following is a selective estrogen receptor modulator?

Accepted Answer

A) tamoxifen. 
B) raloxifene. 
C) progesterone. 
D) Both tamoxifen and raloxifene. 
A) tamoxifen. 
B) raloxifene. 
C) progesterone. 
D) Both tamoxifen and raloxifene.

Question 14

Second messengers generated by the actions of phospholipase C

Accepted Answer

A) are inhibited by the actions of caffeine. 
B) are stimulated by phosphodiesterases. 
C) may activate calmodulin. 
D) stimulate gene transcription. 
A) are inhibited by the actions of caffeine. 
B) are stimulated by phosphodiesterases. 
C) may activate calmodulin. 
D) stimulate gene transcription.

Question 15

An individual with bulging eyes may

Accepted Answer

A) be secreting inadequate thyroid hormone. 
B) be secreting excessive thyroid hormone. 
C) be secreting inadequate cortisol. 
D) be secreting excessive cortisol. 
A) be secreting inadequate thyroid hormone. 
B) be secreting excessive thyroid hormone. 
C) be secreting inadequate cortisol. 
D) be secreting excessive cortisol.

Question 16

Which of the following is NOT true about a chemical functioning in physiological regulation

Accepted Answer

A) There must be a mechanism to turn off the chemical's action. 
B) The chemicals must be secreted by endocrine glands. 
C) Target cell must have specific receptor molecules for the chemical. 
D) The combination of the chemical and its receptor must cause specific changes to occur in the target cell. 
A) There must be a mechanism to turn off the chemical's action. 
B) The chemicals must be secreted by endocrine glands. 
C) Target cell must have specific receptor molecules for the chemical. 
D) The combination of the chemical and its receptor must cause specific changes to occur in the target cell.

Question 17

Prolonged stress may stimulate

Accepted Answer

A) symptoms similar to Cushing's syndrome. 
B) increased resistance to disease. 
C) adrenal gland atrophy. 
D) no apparent physiological changes. 
A) symptoms similar to Cushing's syndrome. 
B) increased resistance to disease. 
C) adrenal gland atrophy. 
D) no apparent physiological changes.

Question 18

Which of the following is NOT a symptom of Addison's disease?

Accepted Answer

A) skin discoloration (bronzing) 
B) hyperglycemia 
C) hypotension 
D) sodium and potassium imbalances 
A) skin discoloration (bronzing) 
B) hyperglycemia 
C) hypotension 
D) sodium and potassium imbalances

Question 19

Growth would be inhibited by

Accepted Answer

A) increasing prolactin secretion. 
B) increasing somatostatin secretion. 
C) increasing somatomedin secretion. 
D) increasing thyroid hormone secretion. 
A) increasing prolactin secretion. 
B) increasing somatostatin secretion. 
C) increasing somatomedin secretion. 
D) increasing thyroid hormone secretion.

Question 20

Epinephrine can act through two second-messenger systems (cAMP and Ca2+).

Accepted Answer

A) True 
 B)False

Plasma levels of protein-bound thyroxine fluctuate greatly in response to the body's use of thyroxine.

Thyroid hormones bind to receptors which

What hormone stimulates uterine contractions during labor and milk-ejection during lactation?

To induce full cellular effects,thyroid hormones also require the actions of

Viagra is a drug that creates penile erection by

____________ regulators mediate the function of the cells in which they are synthesized.

Prolactin injections may be used to induce labor.

Cellular actions of insulin could be inhibited by

Endocrine glands secrete their products into ducts.

Drugs that are useful for treating asthma are

Increased circulating concentrations of testosterone would stimulate

The posterior pituitary gland produces two hormones.

Which of the following is a selective estrogen receptor modulator?

Second messengers generated by the actions of phospholipase C

An individual with bulging eyes may

Which of the following is NOT true about a chemical functioning in physiological regulation

Prolonged stress may stimulate

Which of the following is NOT a symptom of Addison's disease?

Growth would be inhibited by

Epinephrine can act through two second-messenger systems (cAMP and Ca²⁺).

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

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Exam 11: Endocrine Glands: Secretion and Action of Hormones

Plasma levels of protein-bound thyroxine fluctuate greatly in response to the body's use of thyroxine.

Thyroid hormones bind to receptors which

What hormone stimulates uterine contractions during labor and milk-ejection during lactation?

To induce full cellular effects,thyroid hormones also require the actions of

Viagra is a drug that creates penile erection by

____________ regulators mediate the function of the cells in which they are synthesized.

Prolactin injections may be used to induce labor.

Cellular actions of insulin could be inhibited by

Endocrine glands secrete their products into ducts.

Drugs that are useful for treating asthma are

Increased circulating concentrations of testosterone would stimulate

The posterior pituitary gland produces two hormones.

Which of the following is a selective estrogen receptor modulator?

Second messengers generated by the actions of phospholipase C

An individual with bulging eyes may

Which of the following is NOT true about a chemical functioning in physiological regulation

Prolonged stress may stimulate

Which of the following is NOT a symptom of Addison's disease?

Growth would be inhibited by

Epinephrine can act through two second-messenger systems (cAMP and Ca2+).

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Respiratory Physiology

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Epinephrine can act through two second-messenger systems (cAMP and Ca²⁺).