Question 1

What hormone or electrolyte imbalance slows down the rate of secretion of parathyroid hormone?

Accepted Answer

A)  Increased serum calcium levels 
B)  Decreased serum calcium levels 
C)  Decreased levels of TSH 
D)  Increased levels of TSH 
A)  Increased serum calcium levels 
B)  Decreased serum calcium levels 
C)  Decreased levels of TSH 
D)  Increased levels of TSH

Question 2

Norepinephrine stimulates the release of which hormone?

Accepted Answer

A)  Thyroxine 
B)  Adrenocorticotropic hormone 
C)  Growth hormone 
D)  Insulin 
A)  Thyroxine 
B)  Adrenocorticotropic hormone 
C)  Growth hormone 
D)  Insulin

Question 3

The relationship between the endocrine system and aging has been clearly elucidated.

Accepted Answer

A) True 
 B)False

Question 4

Which second messenger is stimulated by epinephrine binding to a ß-adrenergic receptor?

Accepted Answer

A)  Calcium 
B)  Inositol triphosphate (IP3) 
C)  Diacylglycerol (DAG) 
D)  Cyclic adenosine monophosphate (cAMP) 
A)  Calcium 
B)  Inositol triphosphate (IP3) 
C)  Diacylglycerol (DAG) 
D)  Cyclic adenosine monophosphate (cAMP)

Question 5

Which of the following hormones acts on its target cell via a second messenger?

Accepted Answer

A)  Angiotensin II 
B)  Thyroxine 
C)  Estrogen 
D)  Testosterone 
E)  Aldosterone 
A)  Angiotensin II 
B)  Thyroxine 
C)  Estrogen 
D)  Testosterone 
E)  Aldosterone

Question 6

MATCHING
Match the anatomic structure with its hormone.(Names of structures may be used more than once. )
-Growth hormone

Accepted Answer

A) Anterior pituitary 
B) Posterior pituitary 
C) Thyroid 
D) Adrenal cortex 
E) Adrenal medulla 
A) Anterior pituitary 
B) Posterior pituitary 
C) Thyroid 
D) Adrenal cortex 
E) Adrenal medulla

Question 7

What effect does hyperphosphatemia have on other electrolytes?

Accepted Answer

A)  It increases serum calcium. 
B)  It decreases serum calcium. 
C)  It decreases serum magnesium. 
D)  It increases serum magnesium. 
A)  It increases serum calcium. 
B)  It decreases serum calcium. 
C)  It decreases serum magnesium. 
D)  It increases serum magnesium.

Question 8

The brain does not require insulin for glucose uptake.

Accepted Answer

A) True 
 B)False

Question 9

Cell surface receptors include all of the following except:

Accepted Answer

A)  G-protein-linked. 
B)  ion channel. 
C)  second messenger. 
D)  tyrosine-kinase linked. 
A)  G-protein-linked. 
B)  ion channel. 
C)  second messenger. 
D)  tyrosine-kinase linked.

Question 10

What are actions of glucocorticoids?

Accepted Answer

A)  Protein catabolism and liver gluconeogenesis 
B)  Fat storage and glucose use 
C)  Decreased blood glucose and fat mobilization 
D)  Fat,protein,and carbohydrate anabolism 
A)  Protein catabolism and liver gluconeogenesis 
B)  Fat storage and glucose use 
C)  Decreased blood glucose and fat mobilization 
D)  Fat,protein,and carbohydrate anabolism

Question 11

Where is oxytocin synthesized?

Accepted Answer

A)  Hypothalamus 
B)  Paraventricular nuclei 
C)  Anterior pituitary 
D)  Posterior pituitary 
A)  Hypothalamus 
B)  Paraventricular nuclei 
C)  Anterior pituitary 
D)  Posterior pituitary

Question 12

Antidiuretic hormone has no direct effect on electrolyte levels.

Accepted Answer

A) True 
 B)False

Question 13

Aldosterone secretion is stimulated by angiotensin I.

Accepted Answer

A) True 
 B)False

Question 14

The pituitary gland is located in the bony sella turcica.

Accepted Answer

A) True 
 B)False

Question 15

The releasing hormones that are made in the hypothalamus travel to the anterior pituitary via the:

Accepted Answer

A)  vessels of the zona fasciculatA. 
B)  infundibular stem. 
C)  hypophysial stalk. 
D)  portal hypophysial blood vessels. 
A)  vessels of the zona fasciculatA. 
B)  infundibular stem. 
C)  hypophysial stalk. 
D)  portal hypophysial blood vessels.

Exam 20: Mechanisms of Hormonal Regulation

What hormone or electrolyte imbalance slows down the rate of secretion of parathyroid hormone?

Norepinephrine stimulates the release of which hormone?

The relationship between the endocrine system and aging has been clearly elucidated.

Which second messenger is stimulated by epinephrine binding to a ß-adrenergic receptor?

Which of the following hormones acts on its target cell via a second messenger?

MATCHING Match the anatomic structure with its hormone.(Names of structures may be used more than once. ) -Growth hormone

What effect does hyperphosphatemia have on other electrolytes?

The brain does not require insulin for glucose uptake.

Cell surface receptors include all of the following except:

What are actions of glucocorticoids?

Where is oxytocin synthesized?

Antidiuretic hormone has no direct effect on electrolyte levels.

Aldosterone secretion is stimulated by angiotensin I.

The pituitary gland is located in the bony sella turcica.

The releasing hormones that are made in the hypothalamus travel to the anterior pituitary via the:

Cellular Biology

Altered Cellular and Tissue Biology

The Cellular Environment

Genes and Genetic Diseases

Genes, Environment-Lifestyle, and Common Diseases

Innate Immunity Including Inflammation

Adaptive Immunity

Alterations in Immunity and Inflammation Including Hypersensitivies

Infection Including Hivaids

Stress and Disease

Biology of Cancer

Tumor Invasion and Metastasis

Cancer in Children

Structure and Function of the Neurologic System

Pain, Temperature Regulation, Sleep, and Sensory Function

Concepts of Neurologic Dysfunction

Disorders of Neurologic Function

Neurobiology of Schizophrenia, Mood Disorders, and Anxiety Disorders

Alterations of Neurologic Function in Children

Alterations of Hormonal Regulation

Structure and Function of the Reproductive Systems

Alterations of the Reproductive Systems

Sexually Transmitted Infections

Structure and Function of the Hematologic System

Alterations of Erythrocyte Function

Alterations in Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Structure and Function of the Pulmonary System

Alterations of Pulmonary Function

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Adults

Shock, Multiple Organ Dysfunction Syndrome, and Burns in Children

Alterations of Leukocyte, Lymphoid, and Hemostatic Function

Alterations of Pulmonary Function in Children

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