STUDY QUESTIONS
Endocrine System
Answers are provided below each question

1. The hormone primarily responsible for setting the basal metabolic rate and for promoting the maturation of the brain is:

A. cortisol
B. ACTH
C. TSH
D. thyroxine
E. none of the preceding.

2. Many nonsteroid hormones act upon their target cells by causing:

A. cyclic AMP to become ATP
B. the inactivation of adenylate cyclase
C. cyclic AMP to become protein kineses
D. the activation of adenylate cyclase
E. both A and D apply.

3. Which of the following would result from a thyroidectomy (removal of the thyroid gland)?

A. decreased TSH secretion
B. increased T3 and thyroxine secretion
C. increased calcitonin secretion
D. increased TSH secretion
E. both B and C apply.

4. Steroid hormones are secreted by:

A. the adrenal cortex
B. the gonads
C. the thyroid
D. both A and
B E. both B and C.

5. The secretion of which hormone would be increased in a person with endemic goiter?

A. TSH.
B. thyroxine
C. triiodothyronine;
D. all of the preceding apply

6. Which of the following hormone pairs is not produced by the same endocrine gland?

A. LH/FSH
B. ACTH/ADH
C. prolactin/GH
D. CRH/PIH.
E. all of the preceding are correctly paired.

7. Oxytocin:

A. allows milk secretion or "milk let-down"
B. is stored in the pars nervosa (posterior pituitary)
C. is produced by cells in the diencephalon (hypothalamus)
D. exerts important effects during childbirth
E. all of the above.

MATCHING.( Items A through E may be used more than once.)

A. Hypothalamus
B. hypophysis
C. adrenal
D. thyroid E. parathyroid.

8. Located in the sella turcica of the spheroid bone
9. Contains groups of cell bodies called nuclei
10. Located on the superior border of each kidney
11. Contains two structures: adeno- and neurohypophysis
12. Located on the posterior surface of the thyroid gland
13. Contains an outer cortical region and an inner medullary region
14. Located inferior to the larynx
15. Contains chromaffin cells which produce catecholamines
16. Produces releasing and inhibiting hormones
17. Produces calcitonin
18. Contains oxyphil and chief cells
19. It secretes some androgens
20. Contains chromophil and chromophobe cells.

MULTIPLE CHOICE. Choose the best answer.

21. A tumor of the beta cells of the pancreatic islets would probably affect the body's ability to:

A. lower blood glucose level
B. lower blood calcium level
C. raise blood calcium level
D. raise blood glucose level
E. raise blood sodium level.

22. Removal of the adenohypophysis would affect all except:

A. adrenal cortex
B. adrenal medulla
C. ovaries
D. mammary glands
E. thyroid gland.

23. Which hormone stimulated the production of erythrocytes in myeloid tissues?

A. GH
B. progesterone
C. ICSH
D. ADH
E. none of the preceding.

MATCHING.

A. Cushing's syndrome
B. cretinism
C. myxedema
D. Endemic goiter
E. Addison's disease

24. Hyposecretion of thyroxine in adult
25. Hyposecretion of glucocorticoids and mineralocorticoids
26. Hypersecretion of glucocorticoids
27. Lack of iodine
28. Hyposecretion of thyroxine during childhood.

MULTIPLE CHOICE

  1. The endocrine system:
    a) releases chemicals into the bloodstream for distribution throughout the body
    b) releases hormones that alter the metabolic activities of many different tissues and organs
    c) produces effects that can last for hours, days, or even longer
    d) can alter gene activity of cells
    e) all of the above

     
  2. Each of the following hormones is an amino acid derivative EXCEPT:
    a) epinephrine
    b) melatonin
    c) thyroxine (T4)
    d) thyroid stimulating hormone (TSH)
    e) norepinephrine

     
  3. When adenyl cyclase is activated:
    a) cAMP is formed
    b) cAMP is broken
    c) G-proteins bind to cAMP
    d) steroid hormones enter the cell

     
  4. Which of the following hormones does NOTact by a second messenger system:
    a) glucagon
    b) epinephrine
    c) growth hormone
    d) testosterone
    e) ACTH

     
  5. This hypophyseal structure receives signals from the hypothalamus via the hypophyseal portal vein:
    a) follicles
    b) adenohypophysis
    c) neurohypophysis
    d) pars intermedia
    e) supraoptic nucleus

     
  6. Low blood glucose level typically results in the secretion of all of the following EXCEPT:
    a) glucagon
    b) thyroxine (T4)
    c) hGH
    d) PTH
    e) none of the above

     
  7. The action of glucocorticoids involves many functions, but only one of the following is a correct one:
    a) increases inflammatory responses
    b) decreases lipid hydrolysis (lipolysis)
    c) increases glucose levels
    d) retention of electrolytes by the kidneys
    e) increases osteoclast activity

     
  8. This hormone acts on the intestines and causes increased calcium absorption:
    a) calcitonin
    b) calcitriol
    c) thyroxine
    d) pancreatic polypeptide
    e) corticotropin releasing factor (CRF)

     
  9. Thyroid stimulating hormone (TSH) causes all of the following EXCEPT:
    a) activation of thyroid follicular cells
    b) increased iodide trapping in thyroid follicles
    c) increased thyroglobulin synthesis
    d) increased release of T3/ T4
    e) all of above are correct

     
  10. The pancreatic cells that secrete insulin are the:
    a) F-cells
    b) principal cells
    c) alpha cells
    d) beta cells
    e) delta cells

     
  11. The general adaptation syndrome (GAS) is activated by the:
    a) hypothalamus
    b) adrenal gland
    c) pituitary gland
    d) thyroid gland
    e) release of glucocorticoids

     
  12. If you were to eat four sugar glaze doughnuts and a large pepsi, which hormone would you expect to be secreted at higher levels:
    a) insulin
    b) epinephrine
    c) glucagon
    d) cortisol
    e) oxytocin

     
  13. Somatostatin is secreted by the:
    a) pancreatic F-cells
    b) pancreatic delta cells
    c) zona fasciculata
    d) parafollicular cells
    e) posterior pituitary

     
  14. Hyposecretion of cortisol can cause:
    a) cretinism
    b) diabetes mellitus
    c) diabetes insipidus
    d) Addison’s disease
    e) Grave’s disease

     
  15. A tumor in the adrenal zona glomerulosa can cause hypersecretion of hormones produced in that region. Which of the following might you expect to find in a patient with such a tumor:
    a) increased blood sodium levels
    b) increased blood glucose levels
    c) decreased blood calcium levels
    d) increased dehydration
    e) increased ketoacidosis

     
  16. Oxytocin is secreted by the:
    a) adenohypophysis
    b) neurohypophysis
    c) zona glomerulosa
    d) pars intermedia
    e) cervix
    You can do in an in the in and the in the in the in the in the long and in
  17. A lack of or decrease in insulin hormone receptors on cells can result in:
    a) diabetes insipidus
    b) type I diabetes mellitus
    c) type II diabetes mellitus
    d) insulin-dependant diabetes mellitus (IDDM)
    e) juvenile diabetes

     
  18. Vasopressin is the same hormone as:
    a) cortisol
    b) epinephrine
    c) ADH
    d) hGH
    e) oxytocin

     
  19. The general adaptation syndrome (GAS):
    a) is a mechanism to maintain homeostasis under stress
    b) resets the levels of controlled conditions in the body in response to stress
    c) is a part of the sympathetic (fight or flight) response
    d) reduces the amounts of stress your body encounters
    e) none of the above

     
  20. Which of the following characteristics is the same for the nervous and endocrine systems:
    a) target cells affected
    b) time to onset of actions
    c) duration of actions
    d) mechanism of signalling and communication
    e) none of the above

     
  21. The endocrine system:
    1. Releases chemicals into the bloodstream for distribution throughout the body
    2. Releases hormones that can alter the metabolic activities of many different tissues and organs
    3. Produces effects that can last for hours, days, or even longer
    4. Can alter the gene activity of cells
    5. All of the above
  22. Each of the following is an amino acid derivative EXCEPT:
    1. Epinephrine
    2. Melatonin
    3. Thyroxine
    4. TSH
  23. When adenyl cyclase is activated:
    1. cAMP is formed
    2. cAMP is degraded
    3. G proteins are replicated in a semiconservative fashion
    4. Steroid hormones enter the cell via receptor-mediated endocytosis
    5. None of the above
  24. Which of the following hormones does not act via a second messenger system?
    1. Glucagon
    2. Epinephrine
    3. GH
    4. Testosterone
    5. ACTH
  25. What hypophyseal structure receives signals from the hypothalamus via the hypophyseal portal system?
    1. Follicular medulla
    2. Adenohypophysis
    3. Neurohypophysis
    4. Pars intermedia
    5. Suprachiasmatic nucleus

  26. Low blood glucose typically results in the secretion of all of the following EXCEPT:
    1. Glucagon
    2. Thyroxine
    3. hGH
    4. PTH
    5. 3 of the above
  27. Which of the following is a function of glucocorticoids?
    1. Increased inflammatory response
    2. Increased blood [glucose]
    3. Decreased lipolysis
    4. Increased creatinine hydrolysis by osteocytes
    5. Increased osteoclast activity
  28. What hormone increases intestinal calcium absorption?
    1. Calcitriol
    2. Calcitonin
    3. Parathormone
    4. Pancreatic polypeptide
    5. GnRH
  29. Which of the following is a function of TSH?
    1. Activation of thyroid follicular cells
    2. Increase of iodine trapping in follicular cells
    3. Increased thyroglobulin synthesis
    4. Increased release of T3
    5. Increase release of T4
    6. All of the above
    7. Only 4 of the above
  30. The ______ cells of the pancreas secrete insulin.
    1. F
    2. Chief
    3. Principal
    4. Alpha
    5. Beta
    6. Delta
  31. The general adaptation syndrome is activated by the:
    1. Hypothalamus
    2. Adrenal gland
    3. Pituitary gland
    4. Thyroid gland
    5. Epinephrine release
  32. Say you ate 25 sugar cubes and then drank a liter of Mountain Dew, which hormone might be secreted in large amounts as a result?
    1. Insulin
    2. Glucagon
    3. Prolactin
    4. GnRH
    5. Somastinin
  33. Somatostatin is secreted by the:
    1. Pancreatic F cells
    2. Pancreatic delta cells
    3. Zona fasciculata
    4. Parafollicular cells
    5. Bronchial clara cells
  34. A tumor in the adrenal zona glomerulosa may cause hypersecretion of the hormones in that region. Which of the following might you expect to find in a patient with such a tumor?
    1. Increased blood sodium levels
    2. Increased blood glucose levels
    3. Decreased blood calcium levels
    4. Increased dehydration
    5. Increased ketoacidosis
  35. Oxytocin is secreted by the:
    1. Adenohypophysis
    2. Neurohypophysis
    3. Zona glomerulosa
    4. Pars intermedia
    5. Cervical stretch receptors
  36. A lack or decrease in insulin hormone receptors on cells can result in:
    1. Diabetes insipidus
    2. Type I diabetes mellitus
    3. Type II diabetes mellitus
    4. Insulin-dependent diabetes mellitus
    5. Gestational diabetes

  37. Vasopressin is the same hormone as ____________.
  38. The general adaptation syndrome:
    1. Is a mechanism to maintain homeostasis when under stress
    2. Resets the levels of controlled conditions in the body in response to stress
    3. Is part of the sympathetic response
    4. Reduces the amount of stress encountered
    5. None of the above
  39. Which of the following characteristics is the same for the nervous and the endocrine systems
    1. Target cells affected
    2. Latent period for onset of actions
    3. Duration of actions
    4. Mechanism of signalling
    5. None of the above
  40. Hyposecretion of cortisol can cause:
    1. Cretinism
    2. Diabetes mellitus
    3. Diabetes insipidus
    4. Addison's disease
    5. Grave's disease
  41. During hyperglycemia, pituitary GH secretion will __________________.
  42. As blood [somatomedin] increases, pituitary GH secretion will _______________.
  43. As GH secretion increases, liver glycogenolysis will _______________.
  44. As GH secretion decreases, fat catabolism will ______________.
  45. As thyroid hormone levels increase, tissue O2 consumption will _____________.
  46. As thyroid hormone levels increase, pituitary TSH secretion will ______________.
  47. As hypernatremia progresses, cortisol secretion will __________________.
  48. As hypoxia progresses, cortisol secretion will _________________.
  49. As cortisol secretion increases, blood [glucose] will _________________.
  50. As cortisol secretion increases, protein anabolism will _______________.
  51. As PTH levels increase, plasma [Ca2+] will ________________.
  52. As plasma [Ca2+] increases, calcitonin secretion will ___________.
  53. Stress causes the adrenal medulla to release:
    1. Norepinephrine and ANP
    2. Epinephrine and vasopressin
    3. Epinephrine and norepinephrine
    4. Epinephrine, norepinephrine and vasopressin
82) The two systems that act to control all body activities are the nervous and _____ systems.
 
  A) circulatory
 
  B) exocrine
 
  C) endocrine
 
  D) muscular
83) The _____ system includes the glands that release their secretions directly into the blood.
 
  A) exocrine
 
  B) endocrine
 
  C) circulatory
 
  D) excretory
84) Which of the following glands does not belong to the endocrine system?
 
  A) pituitary
 
  B) thyroid
 
  C) parathyroid
 
  D) salivary
85) Which of the following is not a chemical class of hormones?
 
  A) protein
 
  B) steroid
 
  C) glycoprotein
 
  D) carbohydrate
86) Which of these is not a steroid?
 
  A) adrenalin
 
  B) cholesterol
 
  C) progesterone
 
  D) cortisone
87) Which of the following is the precursor that will result in the synthesis of the others?
 
  A) testosterone
 
  B) cholesterol
 
  C) vitamin D
 
  D) estrogen
88) Which of these is not produced by the anterior pituitary?
 
  A) ACTH
 
  B) follicle-stimulating hormone
 
  C) somatostatin
 
  D) somatotropin
89) Which of the following is not a pancreatic hormone?
 
  A) glucagon
 
  B) aldosterone
 
  C) insulin
 
  D) somatostatin
90) Which of the following is not a hormone function?
 
  A) increase cellular oxygen consumption
 
  B) cause osteoblasts to divide
 
  C) convert fibroblasts to osteoblasts
 
  D) alter genetic expression
91) Prostaglandins are _____ that affect various functions.
 
  A) proteins
 
  B) carbohydrates
 
  C) nucleotides
 
  D) lipids
92) Which factor is a direct cause of the rheumatoid arthritis symptoms?
 
  A) prostaglandin
 
  B) cortisone
 
  C) cortisol
 
  D) arachidonic acid
93) Which of the following is not a property of prostaglandins?
 
  A) regulate blood pressure
 
  B) effect reproductive functions
 
  C) influence kidney Na+ movement
 
  D) all of these are functions
94) Which of these is an example of negative feedback?
 
  A) insulin lowers blood sugar
 
  B) GH causes osteoblast division
 
  C) PTH raises blood calcium levels
 
  D) low blood sugar inhibits insulin
95) Releasing hormones are produced by the _____.
 
  A) hypothalamus
 
  B) pituitary
 
  C) thyroid
 
  D) adrenal cortex
96) Which hormone controls the ability to produce milk?
 
  A) ACTH
 
  B) PRL
 
  C) FSH
 
  D) melanocyte
97) Which of the following directly influences or controls the other areas?
 
  A) anterior pituitary
 
  B) thyroid gland
 
  C) hypothalamus
 
  D) ovary and testis
98) Which of the following directly stimulates mitosis?
 
  A) insulin
 
  B) somatotropin
 
  C) corticotropin
 
  D) growth hormone releasing hormone
99) The condition called _____ occurs in adulthood and is evidenced by thickened skull bones and distortions in the arms and hands.
 
  A) dwarfism
 
  B) giantism
 
  C) myxedema
 
  D) acromegaly
100) The hormone _____ causes the breast to increase its synthesis of milk.
 
  A) PRL
 
  B) oxytocin
 
  C) PRF
 
  D) PIF
101) Which of the following is not produced by the pituitary?
 
  A) ACTH
 
  B) FSH
 
  C) ICSH
 
  D) GnRH
102) Which hormone decreases the production of urine?
 
  A) ADH
 
  B) adrenalin
 
  C) oxytocin
 
  D) thyroxine
103) Oxytocin is most closely related chemically to _____.
 
  A) antidiuretic hormone
 
  B) prolactin
 
  C) follicle stimulating hormone
 
  D) luteinizing hormone
104) ADH has the ability to increase blood pressure by constricting blood vessels and is therefore also called _____.
 
  A) oxytocin
 
  B) vasopressin
 
  C) angiotensin
 
  D) adrenocorticotropin
105) Which hormone plays the greatest role in the contractions that occur in the uterus during labor?
 
  A) ADH
 
  B) estrogen
 
  C) oxytocin
 
  D) prostaglandin
106) Which hormone is most closely involved with ovulation?
 
  A) prolactin
 
  B) LH
 
  C) FSH
 
  D) estrogen
107) Which hormone exerts the greatest influence on metabolism?
 
  A) thyroxine
 
  B) cortisone
 
  C) insulin
 
  D) parathormone
108) Which of the following is not true of thyroxine?
 
  A) needed for normal mental growth
 
  B) increases carbohydrate utilization
 
  C) decreases lipid synthesis
 
  D) decreases protein synthesis
109) Which of the following is not true of calcitonin?
 
  A) increases bone calcium deposition
 
  B) increases blood calcium
 
  C) decreases blood calcium
 
  D) inhibits osteoclasts
110) Which of the following is not a symptom of hyperthyroidism?
 
  A) loss of weight
 
  B) increased mental awareness
 
  C) increased heart rate
 
  D) increased ability to sleep
111) Graves disease can cause all of these except which one?
 
  A) exophthalmos
 
  B) a positive autoimmune test
 
  C) general edema
 
  D) intolerance to heat
112) Which gland is assessed by the use of radioactive iodine?
 
  A) parathyroid
 
  B) thyroid
 
  C) ovary
 
  D) pituitary
113) The ______ directly antagonizes the effect of calcitonin.
 
  A) thyroxine
 
  B) parathormone
 
  C) insulin
 
  D) glucocorticoid
114) Osteoporosis most likely results from _____.
 
  A) a deficiency of dietary calcium
 
  B) increased calcitonin levels
 
  C) increased PTH secretion
 
  D) osteitis fibrosa
115) Which of the following is the last step in the sequence of hormone synthesis in the adrenal medulla?
 
  A) tyrosine
 
  B) dopamine
 
  C) epinephrine
 
  D) norepinephrine
116) Which of the following is not true of aldosterone?
 
  A) secreted from the zona glomerulosa
 
  B) decreases blood Na+ levels
 
  C) stimulated by angiotensin II
 
  D) raises blood volume
117) Which of these is not true of cortisol?
 
  A) stimulates gluconeogenesis
 
  B) decreases blood glucose
 
  C) decreases protein synthesis
 
  D) stimulated by ACTH
118) The following relate to Cushing's syndrome except which one?
 
  A) moon face and buffalo hump
 
  B) under-secretion of ACTH
 
  C) over-secretion of ACTH
 
  D) hyperglycemia
119) The following are true of insulin except which one?
 
  A) can cause hypoglycemia
 
  B) can cause hyperglycemia
 
  C) produced in the islets of Langerhans
 
  D) antagonized by glucagon
120) The hormone melatonin is secreted from the _____ gland.
 
  A) pituitary
 
  B) pineal
 
  C) thyroid
 
  D) thymus
121) The _____ gland is important for producing immunity.
 
  A) thyroid
 
  B) pituitary
 
  C) thymus
 
  D) pancreas
122) Which gland produces a hormone that stimulates the production of blood cells?
 
  A) kidney
 
  B) heart
 
  C) liver
 
  D) pancreas
123) In the general stress syndrome, all of the following are increased except which one?
 
  A) blood sugar
 
  B) heart rate
 
  C) blood pressure
 
  D) digestion
124) Where are the posterior pituitary hormones manufactured?
 
  A) in neurosecretory cells that originate in the hypothalamus
 
  B) in the posterior pituitary
 
  C) in the anterior pituitary
 
  D) in the brain stem
125) Which one of these anterior pituitary hormones shows increased secretion in response to stress?
 
  A) thyroid-stimulating hormone
 
  B) adrenocorticotropic hormone
 
  C) luteinizing hormone
 
  D) prolactin
126) Drinking alcoholic beverages on hot days is not safe because alcohol inhibits the release of ____________ which normally helps to conserve water during dehydration.
 
  A) antidiuretic hormone
 
  B) oxytocin
 
  C) thyroxine
 
  D) triiodothyronine
127) The thyroid hormones are responsible for regulating metabolic rate and calcium and phosphate ion concentration in the blood. Which thyroid hormone lowers calcium and phosphate ion concentration in the blood?
 
  A) thyroxine
 
  B) triiodothyronine
 
  C) calcitonin
 
  D) thyroid-stimulating hormone
128) Hypothyroidism in infants can result in _______________.
 
  A) Grave's disease
 
  B) cretinism
 
  C) Hashimoto's disease
 
  D) myxedema
129) The hormone _______________, which is secreted by the adrenal _______________, causes the kidney to conserve sodium and excrete potassium ions and indirectly helps to maintain systemic blood pressure.
 
  A) aldosterone; cortex
 
  B) angiotensin I; medulla
 
  C) cortisol; cortex
 
  D) epinephrine; medulla
130) Sex hormones are secreted by ________________.
 
  A) all endocrine tissues of the body
 
  B) the inner cortex of the adrenal gland
 
  C) the inner cortex of the adrenal gland and the gonads
 
  D) the gonads
131) In the pancreas, ______________ cells secrete insulin, which ____________ blood levels of glucose.
 
  A) delta; raises
 
  B) alpha; lowers
 
  C) beta; raises
 
  D) beta; lowers
132) What seems to be the cause of juvenile-onset or insulin-dependent diabetes mellitus (IDDM)?
 
  A) The receptors on the target cells become no longer responsive to insulin.
 
  B) Immune cells attack the pancreas that can then no longer produce insulin.
 
  C) The individual consumes too much sugar, which causes an overload in the bloodstream.
 
  D) Obesity seems to be the most common cause of IDDM.
133) The endocrine gland responsible for the body's circadian rhythm is the ______________ gland.
 
  A) thymus
 
  B) pineal
 
  C) parathyroid
 
  D) pituitary
134) Which of these is not an endocrine property?
 
  A) hormones reach targets through the blood
 
  B) effects are slow and cyclic
 
  C) rapid acting effects
 
  D) effects caused by chemicals
135) Which of these is not an endocrine gland?
 
  A) pancreas
 
  B) testes
 
  C) salivary gland
 
  D) parathyroid
136) Which is not a function of the hypothalamus?
 
  A) affect heart rate
 
  B) control temperature
 
  C) affect water balance
 
  D) secrete FSH
137) Which of these hormones is released into the blood from the posterior pituitary?
 
  A) FSH
 
  B) LH
 
  C) ACTH
 
  D) ADH
138) Which hormone directly affects blood pressure?
 
  A) ADH
 
  B) insulin
 
  C) PTH
 
  D) ACTH
139) The hormone _____ causes the contractions of labor.
 
  A) prolactin
 
  B) estrogen
 
  C) oxytocin
 
  D) progesterone
140) Which hormone has the greatest influence on the ability to produce milk?
 
  A) oxytocin
 
  B) estrogen
 
  C) prolactin
 
  D) progesterone
141) Which hormone causes excessive skeletal growth or giantism?
 
  A) somatotropin
 
  B) testosterone
 
  C) insulin
 
  D) somatostatin
142) Which of these does not directly stimulate the gonads?
 
  A) FSH
 
  B) TSH
 
  C) LH
 
  D) ICSH
143) Which hormone has the greatest effect on metabolism?
 
  A) GH
 
  B) thyroxine
 
  C) TSH
 
  D) ACTH


 

144) The cells that are stimulated by hormones are referred to as its receptors.
 
  A) True
 
  B) False
145) An organ can belong to the digestive and endocrine systems simultaneously.
 
  A) True
 
  B) False
146) Hormones secreted by the adrenal gland can have direct neurological effects.
 
  A) True
 
  B) False
147) Oxytocin is a protein secreted by the posterior pituitary.
 
  A) True
 
  B) False
148) Prostaglandins are considered hormones, which are stored within cells and released on demand.
 
  A) True
 
  B) False
149) Prostaglandins are known to cause the smooth muscle of the uterus or intestines to contract.
 
  A) True
 
  B) False
150) The levels of insulin in the blood are maintained at constant, stable, homeostatic levels.
 
  A) True
 
  B) False
151) The pituitary and adrenal gland can be controlled by the direct influence of the nervous system.
 
  A) True
 
  B) False
152) As blood levels of thyroid hormones increase, the secretions of TRH and TSH are reduced.
 
  A) True
 
  B) False
153) Alcohol is known to be a potent anti-antidiuretic.
 
  A) True
 
  B) False
154) The hypothalamus of the brain has osmoreceptors, which are sensitive to changes in blood concentration.
 
  A) True
 
  B) False
155) Diabetes insipidus is a condition that results in edema and swelling because of an excess of ADH.
 
  A) True
 
  B) False
156) Cretinism is a condition of physical and mental retardation that is the result of a deficiency of thyroxine.
 
  A) True
 
  B) False
157) It is possible to have high levels of TSH but a decrease in the levels of thyroxine.
 
  A) True
 
  B) False
158) Thyroxine production can be increased by TSH or antibodies.
 
  A) True
 
  B) False
159) Male sex hormones can be produced by the testes or adrenal glands.
 
  A) True
 
  B) False
160) Cortisone can either cause or inhibit inflammation.
 
  A) True
 
  B) False
161) The pancreas is an endocrine and exocrine gland that secretes insulin from the alpha cells.
 
  A) True
 
  B) False
162) It is possible to find all the hormones in a blood sample taken from the arm.
 
  A) True
 
  B) False
163) All hormones secreted by the pituitary actually came from the hypothalamus.
 
  A) True
 
  B) False
164) Diabetes insipidus results from an excess production of ADH.
 
  A) True
 
  B) False
165) High levels of TSH would suppress thyroxine by negative feedback.
 
  A) True
 
  B) False