Question 1

Which of the following statements are true of antidiuretic hormone (ADH)and oxytocin (Select all that apply)?

Accepted Answer

A) Both of these hormones are produced by the hypothalamus and stored in the anterior pituitary gland. 
B) ADH may also be called vasopressin because in large amounts it causes vasoconstriction. 
C) Oxytocin inhibits contractions of the uterus to prevent premature labor. 
D) After birth,oxytocin causes release of milk from the mammary glands. 
E) ADH causes the kidneys to reabsorb more water to increase urinary output.
F)The stimulus for secretion of ADH is any decrease in body water. 
A) Both of these hormones are produced by the hypothalamus and stored in the anterior pituitary gland. 
B) ADH may also be called vasopressin because in large amounts it causes vasoconstriction. 
C) Oxytocin inhibits contractions of the uterus to prevent premature labor. 
D) After birth,oxytocin causes release of milk from the mammary glands. 
E) ADH causes the kidneys to reabsorb more water to increase urinary output.
F)The stimulus for secretion of ADH is any decrease in body water. B,D,F

Question 2

Which of the following statements are true of parathyroid hormone (PTH)and calcitonin (Select all that apply)?

Accepted Answer

A) Both hormones are secreted by the parathyroid glands. 
B) PTH increases the storage of calcium in bones. 
C) Calcitonin increases the reabsorption of calcium by the kidneys. 
D) PTH stimulates the activation of vitamin C by the kidneys. 
E) PTH increases the absorption of calcium from food in the small intestine.f.Calcitonin is secreted when the blood calcium level decreases. 
A) Both hormones are secreted by the parathyroid glands. 
B) PTH increases the storage of calcium in bones. 
C) Calcitonin increases the reabsorption of calcium by the kidneys. 
D) PTH stimulates the activation of vitamin C by the kidneys. 
E) PTH increases the absorption of calcium from food in the small intestine.f.Calcitonin is secreted when the blood calcium level decreases. E

Question 3

Which of the following statements are true of thyroxine (and T?)and growth hormone (GH)(Select all that apply)?

Accepted Answer

A) Thyroxine contains iodine and GH contains iron. 
B) Thyroxine increases the use of all food types for energy. 
C) GH increases the use of amino acids to produce energy. 
D) Both hormones increase the rate of mitosis in growing tissues. 
E) Both hormones increase the rate of protein synthesis in cells.
F)Thyroxine is secreted throughout life,but GH is secreted only when the body is growing in height. 
A) Thyroxine contains iodine and GH contains iron. 
B) Thyroxine increases the use of all food types for energy. 
C) GH increases the use of amino acids to produce energy. 
D) Both hormones increase the rate of mitosis in growing tissues. 
E) Both hormones increase the rate of protein synthesis in cells.
F)Thyroxine is secreted throughout life,but GH is secreted only when the body is growing in height. B,E

Question 4

Which of the following statements are true of prostaglandins (Select all that apply)?

Accepted Answer

A) They are made from the proteins of cell membranes. 
B) Like hormones,they are carried in the blood to distant target organs. 
C) Some are important for the process of blood clotting. 
D) Some are important in pain mechanisms. 
A) They are made from the proteins of cell membranes. 
B) Like hormones,they are carried in the blood to distant target organs. 
C) Some are important for the process of blood clotting. 
D) Some are important in pain mechanisms.

Question 5

Which of the following statements are true of hormone effects on the uterus (Select all that apply)?

Accepted Answer

A) FSH from the anterior pituitary initiates growth of the endometrium. 
B) Estrogen from the ovaries stimulates growth of the endometrium. 
C) Progesterone from the developing ovarian follicle stimulates growth of the endometrium. 
D) Oxytocin from the posterior pituitary stimulates contraction of the endometrium at the end of pregnancy. 
E) LH from the anterior pituitary stimulates growth of the myometrium at puberty.
F)During pregnancy,premature contractions of the myometrium are inhibited by progesterone. 
A) FSH from the anterior pituitary initiates growth of the endometrium. 
B) Estrogen from the ovaries stimulates growth of the endometrium. 
C) Progesterone from the developing ovarian follicle stimulates growth of the endometrium. 
D) Oxytocin from the posterior pituitary stimulates contraction of the endometrium at the end of pregnancy. 
E) LH from the anterior pituitary stimulates growth of the myometrium at puberty.
F)During pregnancy,premature contractions of the myometrium are inhibited by progesterone.

Question 6

Which of the following statements are true of aldosterone (Select all that apply)?

Accepted Answer

A) It is secreted by the adrenal cortex. 
B) It increases the reabsorption of K+ ions by the kidneys. 
C) It increases the excretion of Na+ ions by the kidneys. 
D) Normal secretion helps maintain normal blood volume because water is reabsorbed by the kidneys. 
E) In the absence of aldosterone,blood pressure will rise to dangerous levels.
F)Normal secretion helps prevent blood pH from rising too high. 
A) It is secreted by the adrenal cortex. 
B) It increases the reabsorption of K+ ions by the kidneys. 
C) It increases the excretion of Na+ ions by the kidneys. 
D) Normal secretion helps maintain normal blood volume because water is reabsorbed by the kidneys. 
E) In the absence of aldosterone,blood pressure will rise to dangerous levels.
F)Normal secretion helps prevent blood pH from rising too high.

Question 7

Which of the following statements are true of insulin and glucagon (Select all that apply)?

Accepted Answer

A) Insulin is secreted by pancreatic alpha cells,and glucagon is secreted by pancreatic beta cells. 
B) Glucagon stimulates the liver to convert glycogen to glucose. 
C) Insulin lowers the blood glucose level. 
D) Glucagon increases the use of fats and excess amino acids for energy production between meals. 
E) Insulin increases the use of fatty acids and amino acids for the synthesis of fats and proteins.
F)Negative feedback mechanisms regulate the secretion of both hormones,and they are considered synergists. 
A) Insulin is secreted by pancreatic alpha cells,and glucagon is secreted by pancreatic beta cells. 
B) Glucagon stimulates the liver to convert glycogen to glucose. 
C) Insulin lowers the blood glucose level. 
D) Glucagon increases the use of fats and excess amino acids for energy production between meals. 
E) Insulin increases the use of fatty acids and amino acids for the synthesis of fats and proteins.
F)Negative feedback mechanisms regulate the secretion of both hormones,and they are considered synergists.

Question 8

Which of the following statements are true of the stimuli for secretion of hormones (Select all that apply)?

Accepted Answer

A) Hypercalcemia stimulates secretion of calcitonin. 
B) Hypoglycemia stimulates secretion of glucagon. 
C) Parasympathetic impulses stimulate secretion of norepinephrine. 
D) Severe hemorrhage is a stimulus for secretion of ADH. 
E) Secretion of growth hormone is stimulated by GHRH from the posterior pituitary gland.
F)Secretion of FSH stimulates secretion of Lh. 
A) Hypercalcemia stimulates secretion of calcitonin. 
B) Hypoglycemia stimulates secretion of glucagon. 
C) Parasympathetic impulses stimulate secretion of norepinephrine. 
D) Severe hemorrhage is a stimulus for secretion of ADH. 
E) Secretion of growth hormone is stimulated by GHRH from the posterior pituitary gland.
F)Secretion of FSH stimulates secretion of Lh.

Question 9

Which of the following statements are true of the development of egg and sperm (Select all that apply)?

Accepted Answer

A) Both FSH and estrogen are necessary for the development of an ovum. 
B) Both FSH and testosterone are necessary for the development of sperm. 
C) Egg cells develop in the ovarian tubules. 
D) Sperm develop in the testicular follicles. 
E) LH contributes to sperm formation because it stimulates the secretion of testosterone. 
F) LH contributes to egg formation because it stimulates the secretion of estrogen. 
A) Both FSH and estrogen are necessary for the development of an ovum. 
B) Both FSH and testosterone are necessary for the development of sperm. 
C) Egg cells develop in the ovarian tubules. 
D) Sperm develop in the testicular follicles. 
E) LH contributes to sperm formation because it stimulates the secretion of testosterone. 
F) LH contributes to egg formation because it stimulates the secretion of estrogen.

Question 10

Which of the following statements are true of epinephrine and norepinephrine (Select all that apply)?

Accepted Answer

A) Epinephrine increases heart rate and norepinephrine decreases heart rate. 
B) Norepinephrine causes vasoconstriction in the skin and viscera. 
C) Epinephrine mimics the effects of the parasympathetic nervous system. 
D) The major effect of norepinephrine is to raise blood pressure. 
E) Epinephrine stimulates the conversion of glucose to glycogen by the liver.
F)Both hormones are secreted by the adrenal cortex.
G)Both hormones are secreted in stressful situations.
H)Epinephrine causes the bronchioles to dilate. 
A) Epinephrine increases heart rate and norepinephrine decreases heart rate. 
B) Norepinephrine causes vasoconstriction in the skin and viscera. 
C) Epinephrine mimics the effects of the parasympathetic nervous system. 
D) The major effect of norepinephrine is to raise blood pressure. 
E) Epinephrine stimulates the conversion of glucose to glycogen by the liver.
F)Both hormones are secreted by the adrenal cortex.
G)Both hormones are secreted in stressful situations.
H)Epinephrine causes the bronchioles to dilate.

Question 11

Which of the following statements are true of the stimuli for secretion of hormones (Select all that apply)?

Accepted Answer

A) Hyperglycemia stimulates secretion of insulin. 
B) Hypocalcemia stimulates secretion of PTH. 
C) Decreased sodium in the body stimulates secretion of aldosterone. 
D) ACTH stimulates secretion of cortisol. 
E) Increased metabolic rate stimulates secretion of thyroxine.
F)Sympathetic impulses stimulate secretion of epinephrine. 
A) Hyperglycemia stimulates secretion of insulin. 
B) Hypocalcemia stimulates secretion of PTH. 
C) Decreased sodium in the body stimulates secretion of aldosterone. 
D) ACTH stimulates secretion of cortisol. 
E) Increased metabolic rate stimulates secretion of thyroxine.
F)Sympathetic impulses stimulate secretion of epinephrine.

Question 12

Which of the following statements are true of cortisol (Select all that apply)?

Accepted Answer

A) It is secreted by the adrenal medulla. 
B) It limits the damage that the process of inflammation can cause. 
C) Hunger or physical injury will increase secretion of cortisol. 
D) It stimulates conversion of glycogen to glucose in the liver. 
E) It stimulates protein synthesis in muscles for "fight or flight."
F)It helps raise blood pressure and lower heart rate. 
A) It is secreted by the adrenal medulla. 
B) It limits the damage that the process of inflammation can cause. 
C) Hunger or physical injury will increase secretion of cortisol. 
D) It stimulates conversion of glycogen to glucose in the liver. 
E) It stimulates protein synthesis in muscles for "fight or flight."
F)It helps raise blood pressure and lower heart rate.

Question 13

Which of the following statements are true of the gonadotropic hormones (Select all that apply)?

Accepted Answer

A) In women,FSH initiates the growth of ovarian follicles. 
B) In men,FSH initiates production of sperm cells. 
C) In women,LH inhibits FSH to prevent multiple births. 
D) In men,LH stimulates secretion of testosterone by interstitial cells. 
E) In women,FSH stimulates ovulation,the release of a mature ovum.
F)In women,LH causes a ruptured ovarian follicle to become the corpus luteum. 
A) In women,FSH initiates the growth of ovarian follicles. 
B) In men,FSH initiates production of sperm cells. 
C) In women,LH inhibits FSH to prevent multiple births. 
D) In men,LH stimulates secretion of testosterone by interstitial cells. 
E) In women,FSH stimulates ovulation,the release of a mature ovum.
F)In women,LH causes a ruptured ovarian follicle to become the corpus luteum.

Exam 11:The Endocrine System-Part A

Which of the following statements are true of antidiuretic hormone (ADH)and oxytocin (Select all that apply)?

Which of the following statements are true of parathyroid hormone (PTH)and calcitonin (Select all that apply)?

Which of the following statements are true of thyroxine (and T?)and growth hormone (GH)(Select all that apply)?

Which of the following statements are true of prostaglandins (Select all that apply)?

Which of the following statements are true of hormone effects on the uterus (Select all that apply)?

Which of the following statements are true of aldosterone (Select all that apply)?

Which of the following statements are true of insulin and glucagon (Select all that apply)?

Which of the following statements are true of the stimuli for secretion of hormones (Select all that apply)?

Which of the following statements are true of the development of egg and sperm (Select all that apply)?

Which of the following statements are true of epinephrine and norepinephrine (Select all that apply)?

Which of the following statements are true of the stimuli for secretion of hormones (Select all that apply)?

Which of the following statements are true of cortisol (Select all that apply)?

Which of the following statements are true of the gonadotropic hormones (Select all that apply)?

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Some Basic Chemistry-Part C

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Integumentary System-Part C

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Heart-Part C

The Vascular System-Part A

The Vascular System-Part B

The Vascular System-Part C

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Respiratory System-Part C

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C

Human Development and Genetics-Part A

Human Development and Genetics-Part B

Human Development and Genetics-Part C

An Introduction to Microbiology and Human Disease-Part A

An Introduction to Microbiology and Human Disease-Part B

An Introduction to Microbiology and Human Disease-Part C

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