Question 1

Which of the following is NOT true of calcitonin?

Accepted Answer

A) It is made by follicle cells of the thyroid. 
B) Inhibits loss of calcium by bones. 
C) It lowers blood calcium levels. 
D) All of the choices are true of calcitonin. 
A) It is made by follicle cells of the thyroid. 
B) Inhibits loss of calcium by bones. 
C) It lowers blood calcium levels. 
D) All of the choices are true of calcitonin.

Question 2

Endocrine glands secrete their products into ducts.

Accepted Answer

A) True 
 B)False

Question 3

Higher brain centers can influence pituitary secretions and therefore the target organ through the pituitary-target organ axis.

Accepted Answer

A) True 
 B)False

Question 4

Blood vessel diameter is regulated by all of the following EXCEPT

Accepted Answer

A) nitric oxide. 
B) bradykinin. 
C) endothelin. 
D) platelet-derived growth factor. 
A) nitric oxide. 
B) bradykinin. 
C) endothelin. 
D) platelet-derived growth factor.

Question 5

What is the function of prolactin in females?

Accepted Answer

A) stimulates milk production in the mammary glands 
B) regulates the gonadotropins 
C) regulates water and electrolyte balance in the kidneys 
D) All of the choices and correct. 
A) stimulates milk production in the mammary glands 
B) regulates the gonadotropins 
C) regulates water and electrolyte balance in the kidneys 
D) All of the choices and correct.

Question 6

Protein synthesis is usually stimulated when luteinizing hormone binds to its receptor.

Accepted Answer

A) True 
 B)False

Question 7

Adrenal medulla hormones prolong the effects of sympathetic nerves.

Accepted Answer

A) True 
 B)False

Question 8

A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca2+ to increase.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

Hypothyroidism in adults causes

Accepted Answer

A) Grave's disease. 
B) myxedema. 
C) cretinism. 
D) Cushing's disease 
A) Grave's disease. 
B) myxedema. 
C) cretinism. 
D) Cushing's disease

Question 11

Lipophilic hormones and thyroid hormone are transported to their target cells free in the plasma.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is NOT an effect of glucagon secretion?

Accepted Answer

A) lipolysis 
B) ketogenesis 
C) glycogenesis 
D) glycogenolysis 
A) lipolysis 
B) ketogenesis 
C) glycogenesis 
D) glycogenolysis

Question 13

Molecules secreted by endocrine glands that are inactive until changed by their target cells are

Accepted Answer

A) prohormones. 
B) lipophilic hormones. 
C) prehormones. 
D) tissue hormones. 
A) prohormones. 
B) lipophilic hormones. 
C) prehormones. 
D) tissue hormones.

Question 14

Pheromones act through the gustatory sense to modify the physiology or behavior of another member of the same species.

Accepted Answer

A) True 
 B)False

Question 15

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 16

Lipophilic hormones interact with receptors that are transcription factors.

Accepted Answer

A) True 
 B)False

Question 17

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 18

All of the following are considered nonsteroidal anti-inflammatory drugs except

Accepted Answer

A) aspirin. 
B) celecoxib (Celebrex). 
C) acetaminophen (Tylenol). 
D) rofecoxib (Vioxx). 
A) aspirin. 
B) celecoxib (Celebrex). 
C) acetaminophen (Tylenol). 
D) rofecoxib (Vioxx).

Question 19

Aspirin reduces inflammation by

Accepted Answer

A) inhibiting the COX1 isoenzyme. 
B) inhibiting the COX2 isoenzyme. 
C) inhibiting the COX3 isoenzyme. 
D) increasing production on PGI2 and PGE2. 
A) inhibiting the COX1 isoenzyme. 
B) inhibiting the COX2 isoenzyme. 
C) inhibiting the COX3 isoenzyme. 
D) increasing production on PGI2 and PGE2.

Question 20

Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?

Accepted Answer

A) G-proteins 
B) phospholipase C 
C) inositol triphosphate (IP3) 
D) calmodulin 
A) G-proteins 
B) phospholipase C 
C) inositol triphosphate (IP3) 
D) calmodulin

Which of the following is NOT true of calcitonin?

Endocrine glands secrete their products into ducts.

Higher brain centers can influence pituitary secretions and therefore the target organ through the pituitary-target organ axis.

Blood vessel diameter is regulated by all of the following EXCEPT

What is the function of prolactin in females?

Protein synthesis is usually stimulated when luteinizing hormone binds to its receptor.

Adrenal medulla hormones prolong the effects of sympathetic nerves.

A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca²⁺ to increase.

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

Hypothyroidism in adults causes

Lipophilic hormones and thyroid hormone are transported to their target cells free in the plasma.

Which of the following is NOT an effect of glucagon secretion?

Molecules secreted by endocrine glands that are inactive until changed by their target cells are

Pheromones act through the gustatory sense to modify the physiology or behavior of another member of the same species.

Viagra is a drug that creates penile erection by

Lipophilic hormones interact with receptors that are transcription factors.

Cellular actions of insulin could be inhibited by

All of the following are considered nonsteroidal anti-inflammatory drugs except

Aspirin reduces inflammation by

Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?

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 of Metabolism

Reproduction

Filters

Exam 11: Endocrine Glands: Secretion and Action of Hormones

Which of the following is NOT true of calcitonin?

Endocrine glands secrete their products into ducts.

Higher brain centers can influence pituitary secretions and therefore the target organ through the pituitary-target organ axis.

Blood vessel diameter is regulated by all of the following EXCEPT

What is the function of prolactin in females?

Protein synthesis is usually stimulated when luteinizing hormone binds to its receptor.

Adrenal medulla hormones prolong the effects of sympathetic nerves.

A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca2+ to increase.

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

Hypothyroidism in adults causes

Lipophilic hormones and thyroid hormone are transported to their target cells free in the plasma.

Which of the following is NOT an effect of glucagon secretion?

Molecules secreted by endocrine glands that are inactive until changed by their target cells are

Pheromones act through the gustatory sense to modify the physiology or behavior of another member of the same species.

Viagra is a drug that creates penile erection by

Lipophilic hormones interact with receptors that are transcription factors.

Cellular actions of insulin could be inhibited by

All of the following are considered nonsteroidal anti-inflammatory drugs except

Aspirin reduces inflammation by

Which of the following directly initiates the release of calcium ions from the endoplasmic reticulum?

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 of Metabolism

Reproduction

Filters

A tumor stimulating oversecretion of hormones by the thyroid gland would cause plasma Ca²⁺ to increase.