compiled by Oba Mike
Instruction:
Practice without the answers first
1.
Which of these is not a component of the endocrine system?
a.
Neuron
b.
Gland
c.
Blood
d.
Hormone
2.
The target cells for hormones are situated in:
a.
Muscles and glands
b.
Cells throughout the body
c.
Hypothalamus
d
.Pituitary gland
3.
Salivary glands are examples of:
a.
Exocrine glands
b.
Endocrine glands
c.
Paracrine glands
d.
Autocrine glands
4.
Ductless glands are:
a.
Exocrine
b.
Endocrine
c.
Paracrine
d.
Autocrine
5.
Hormones recognize their target cells through the presence of _________
a.
Receptors
b.
Enzymes
c.
Lipids
d.
Sugars
6. A primary endocrine gland is:
a.
Liver
b.
Pancreas
c.
Parathyroid
d.
Ovary
7.
A hormone secreted by the kidney is _______
a.
Insulin
b.
Glucagon
c.
Urea
d.
Erythropoietin
8.
The nervous system controls the activity of the endocrine system through the:
a. Hypothalamus
b. Pituitary gland
c. Adrenal gland
d. Thyroid gland
9. Oxytocin is synthesized by:
a. Hypothalamus
b. Anterior pituitary
c. Posterior pituitary
d. Ovaries
10. Another name for somatocrinin is:
a. Growth hormone – releasing hormone
b. Gonadotropin – releasing hormone
c. Thyrotropin – releasing hormone
d. Corticotropin – releasing hormone
11.
Hormones from the hypothalamus reach the pituitary gland via:
a. Infundibulum
b. Pars intermedia
c. Pars tuberalis
d. Hypophyseal portal vessels
12.
The pituitary gland is located in:
a. Foramen magnum
b. Zygomatic fossa
c. Sella turcica
d. Foramen ovale
13.
Which of these statements about the posterior pituitary is false?
a. It is also called neurohypophysis
b. It contains neural tissues
c. It synthesizes oxytocin
d. Its superior portion is the
infundibulum
14.
Which is not an anterior pituitary hormone?
a. FSH
b. LH
c. TSM
d. ADH
15.
Which of these is not part of the adenohypophysis?
a. Pars distalis
b. Pars tuberalis
c. Epithelial cells
d. Infundibulum
16.
A structural connection between the pituitary gland and the hypothalamus is:
a. Infundibulum
b. Pars intermedia
c. Pars nervosa
d. Pars distalis
17.
Human growth hormone hGH is synthesized in the anterior pituitary by:
a. Somatotrophs
b. Lactotrophs
c. Gonadotrophs
d. Corticotrophs
18.
In females, luteinizing hormone LH promotes:
a. Development of ovarian follicles
b. Development of secondary sexual
characteristics
c. Ovulation
d. Development of egg cell.
19.
Over secretion of human growth hormone in children can lead to:
a.
Gigantism
b.
Dwarfism
c.
Heroism
d.
Ingenuity
20.
Production of testosterone in males is triggered by:
a. Androgens
b. Follicle – stimulating hormone
c. Luteinizing hormone
d. Thyroxine
21. A neuron is to the nervous system
while ________ is to the endocrine system.
a. Hormone
b. Neurotransmitter
c. Blood
d. Electrical impulse
22. Local hormones that act on
neighbouring cells are termed:
a. Paracrine
b. Autocrine
c. Holocrine
d. Apocrine
23. An example of water soluble hormone
is _______
a. Eicosanoid
b. Steroid
c. Nitric Oxide
d. Thyroxine
24. Chemical messengers secreted by
ductless glands are called:
a. Neurotransmitters
b. Lymph
c. Hormones
d. Plasma
25. Neurohormones are secreted by:
a. Hypothalamus
b. Pituitary
c. Parathyroid
d. Pancreas
26. Tropic hormones are released by:
a. Hypothalamus
b. Pituitary
c. Adrenal gland
d. Thyroid gland
27. The secretion of FSH and LH by the
anterior pituitary is stimulated by:
a. GHRH
b. GnRH
c. TRH
d. CRH
28. A hormone released by the posterior
pituitary is _____
a. Oxytocin
b. TSH
c. ICSH
d. Prolactin
29. Another name for neurohypophysis
is:
a. Hypothalamus
b. Anterior pituitary
c. Posterior pituitary
d. Hypophyseal portal system
30. The role of LH in females is:
a. Stimulation of TSH production
b. Regulation of metabolism
c. Stimulates ovulation
d. Stimulates uterine contraction
31. Calcitonin is produced by:
a. Follicular cells
b. Parafollicular cells
c. Chromaffin cells
d. Oxyphil cells
32. The cells that produce calcitonin
are found in:
a. Kidney
b. Adrenal gland
c. Thyroid gland
d. Parathyroid gland
33. In the adrenal cortex, the zona
fasciculata produces:
34. The most abundant glucocorticoid is:
a. Cortisol
b. Cortisone
c. Corticosteroid
d. Corticotropin
35. There are __________ neurohormones
a. 6
b. 7
c. 8
d. 9
36. Releasing hormones are _______ in
number
a. 2
b. 3
c. 5
d. 6
37. An example of a releasing hormone
is:
a. Somatocrinin
b. Somatotropin
c. Somatostatin
d. Somatokinin
38. Human growth hormone is produced
by:
a. Hypothalamus
b. Pituitary gland
c. Thyroid gland
d. Adrenal gland
39. Which of these is not a function of
ADH?
a. Increase in blood volume
b. Vasoconstriction
c. Increase in urination
d. Increase in blood pressure
40. The mechanism of action of oxytocin
is:
a. Positive feedback
b. Negative feedback
c. Vasoconstriction
d. Vasodilation
41. The following are functions of
oxytocin except:
a. Uterine contraction
b. Fetal implantation
c. Lactation
d. Bonding
42. Which of these structures is
pea-shaped?
a. Hypothalamus
b. Pituitary gland
c. Thyroid gland
d. Parathyroid gland
43. The average mass of the pituitary
gland is ______
a. 25 g
b. 40 mg
c. 500 g
d. 500 mg
44. Epithelial tissues in the pituitary
are located in:
a. Anterior lobe
b. Posterior lobe
c. Intermediate lobe
d. Infundibulum
45. The posterior lobe forms ____percent
of the pituitary gland
a. 25%
b. 50%
c. 75%
d. 100%
46. All are parts of the
adenohypophysis except:
a. Somatotrophs
b. Pars tuberalis
c. Pars distalis
d. Infundibulum
47. Oxytocin is stored in:
a. Pars distalis
b. Pars nervosa
c. Pars tuberalis
d. Pars intermedia
48. A larger portion of the posterior
pituitary is:
a. Pars distalis
b. Pars nervosa
c. Pars tuberalis
d. Pars intermedia
49. The physiological link between the
hypothalamus and the pituitary gland is _____
a. Hypophyseal portal system
b. Infundibulum
c. Pars Intermedia
d. Pars distalis
50. in adulthood, the pars intermedia
becomes part of:
a. anterior lobe
b. Posterior lobe
c. Adenohypohysis
d. A and C
51. Which of these hormones is not
secreted by the anterior pituitary?
a. hGH
b. TSH
c. ACTH
d. PIH
52. Rapid cell division is stimulated
by:
a. ADH
b. hGH
c. GHRH
d. PRH
53. Which of these cells are not
present in the anterior pituitary?
a. Somatotrophs
b. Melanotrophs
c. Lactotrophs
d. Gonadotrophs
54. Estrogen is secreted under the
influence of ______
a. ACTH
b. FSH
c. LH
d. PRH
55. Testosterone is secreted under the
influence of ______
a. TSH
b. FSH
c. LH
d. PIH
56. Which of these statements about FSH
is false?
a. It is secreted under the influence
of GnRH
b. It stimulates formation of corpus
luteum
c. It stimulates sperm production
d. It stimulates secretion of estrogen
57. Luteinizing hormone is secreted
under the influence of ____
a. GHIH
b. GnRH
c. GHRH
d. PIH
58. The target cells of prolactin are
found in:
a. Pituitary gland
b. Uterus
c. Mammary gland
d. Testes
59. The isthmus of the thyroid gland is
located:
a. Anterior to the trachea
b. Posterior to the trachea
c. Superior to the larynx
d. Inferior to the larynx
60. The function of the isthmus is:
a. Produces thyroid hormones
b. Connects the lateral lobes
c. Projects the pyramidal lobe
d. Stores hormones that have been
produced.
61. The diagram represents:
a. Hypothalamus
b. Pituitary gland
c. Thyroid gland
d. Adrenal gland
62. The part coloured ‘red’ is:
a. Anterior lobe
b. Posterior lobe
c. Infundibulum
d. Hypophysis
63. Hormones are synthesized in:
a. 3
b. 4
c. 6
d. 8
64. Epithelial tissues are found in:
a. 4
b. 13
c. 6
d. 8
65. The infundibulum is labelled:
a. 2
b. 5
c. 8
d. 10
66. Antidiuretic hormone is stored in:
a. 3
b. 4
c. 6
d. 8
67. The location of this structure is
______
a. Hypophyseal fossa
b. Foramen magnum
c. Fossa ovale
d. Foramen ovale
68. The pars tuberalis is labelled:
a. 3
b. 4
c. 6
d. 8
69. The part marked ‘13’ is:
a. Pars nervosa
b. Pars intermedia
c. Pars distalis
d. Pars tuberalis
70. The major function of this gland is
__________
a. To secrete growh hormone
b. To secrete neurohormones
c. To secrete tropic hormones
d. To secrete Gonadotropins
71. Which of these is not a function of
thyroid hormones?
a. Regulation of calcium homeostasis
b. Regulation of glycolysis
c. Growth and development
d. Control of respiration
72. Thyroxine is chemically known as:
a. Calcitonin
b. Triiodothyronine
c. Tetraiodothyronine
d. Calcitriol
73. Calcitonin is a thyroid hormone
secreted by:
a. Thyroid follicles
b. Follicular cells
c. Parafollicular cells
d. Oxyphil cells
74. Hyperthyroidism can lead to:
a. Increase in basal metabolic rate
b. Decrease in basal metabolic rate
c. Sluggishness
d. Dwarfism
75. Regular intake of iodine deficient
diets can lead to:
a. Inflammation of the thyroid
b. Over secretion of thyroid hormones
c. Obesity
d. All of the above
76. The outermost zone of the adrenal
cortex is _____
a. Zona reticularis
b. Zona glomerulosa
c. Zona pellucida
d. Zona fasciculata
77. The zone that secretes mineralocorticoids
is:
a. Zona reticularis
b. Zona glomerulosa
c. Zona pellucida
d. Zona fasiculata
78. Functions of glucocorticoids
include the following except:
a. Secretion of androgens
b. Gluconeogenesis
c. Lipid metabolism
d. Resistance to stress
79. Which of these is not a function of
androgens in females?
a. Promotion of sex drive
b. Formation of progesterone
c. Formation of estrogen
d. Libido
80. Epinephrine is secreted inS the
adrenal medulla by:
a. Chromaffin cells
b. Oxyphil cells
c. Follicular cells
d. Parafollicular cells
81. The hormones secreted by the
adrenal medulla help in:
a. Increase in sympathetic response
b. Increase in parasympathetic response
c. Constriction of blood vessels
d. Decrease in heart rate
82. Under secretion of cortisol can
lead to:
a. Addison’s disease
b. Cushing syndrome
c. Adrenal hyperplasia
d. Goiter
83. The following are pancreatic islets
except:
a. Alpha cells
b. Beta cells
c. Penta cells
d. F cells
84. Insulin is secreted by:
a. Apha cells
b. Beta cells
c. Penta cells
d. F cells
85. The hormone that increases blood
glucose level is:
a. Insulin
b. Glucagon
c. Pancreatic polypeptide
d. Glycogen
86. Polyphagia as a common feature of
diabetes refers to:
a. Excessive urination
b. Excessive thirst
c. Excessive hunger
d. Excessive defecation
87. Type I diabetes mellitus is also
called:
a. Insulin dependent
b. Non-insulin dependent
c. Gestational diabetes
d. Gerontologic diabetes
88. In type II diabetes mellitus:
a. There is no insulin production
b. There are no functional receptors
for insulin
c. The victim is pregnant
d. There are no obvious signs
89. Pancreatic islets make up:
a. 1% of pancreatic cells
b. 10% of pancreatic cells
c. 90% of pancreatic cells
d. 99% of pancreatic cells.
90. The most abundant pancreatic islets
are:
a. A cells
b. B cells
c. P cells
d. D cells
91. The gland located at the base of
the throat inferior to the larynx is called:
a. Pituitary
b. Pineal
c. Hypothalamus
d. Thyroid
92. The gland located superior to the
kidney is:
a. Pituitary
b. Adrenal
c. Pancreas
d. Ovaries
93. Pancreatic cells responsible for
decrease in blood glucose level are called:
a. Delta
b. Alpha
c. Beta
d. Delta
94. The endocrine gland responsible for
the body’s circadian rhythm is the:
a. Thymus
b. Pineal
c. Parathyroid
d. Pituitary
95. The primary target of the releasing
and inhibiting hormones of the hypothalamus is the:
a. Liver
b. Gonads
c. Anterior pituitary
d. Bone marrow
96. Which of these glands is both
endocrine and exocrine?
a. Thyroid
b. Thymus
c. Pancreas
d. Pituitary
97. Which of the following hormones are
responsible for the fight-or-flight response?
a. Epinephrine and norepinephrine
b. Insulin and glucagon
c. Estrogen and progesterone
d. Thyroxine and Melatonin
98. The pituitary hormone that stimulates
production of sperm in males and development of eggs in a monthly cycle in
females is called:
a. Growth hormone
b. Luteinizing hormone
c. Prolactin
d. Follicle stimulating hormone
99. The cluster of cells in the
pancreas that produce hormones are the:
a. Nodules
b. Islet of Langerhans
c. Pancreatic acini
d. Pancreaticytes
100. Most hormones of the endocrine
system are regulated by:
a. Negative feedback mechanism
b. Positive feedback mechanism
c. Hormone-receptor complex
d. Hormone-gene complex.
101. What is your total score?
a. 100%
b. Below 100 but above 80%
c. Below 80 but above 50%
d. Below 50%
Answers
1. A
2. B
3. A
4. B
5. A
6. C
7. D
8. A
9. A
10. A
11. D
12. C
13. C
14. D
15. D
16. A
17. A
18. C
19. A
20. C
21. C
22. B
23. A
24. C
25. A
26. B
27. B
28. A
29. C
30. C
31. B
32. C
33. Glucocorticoids
34. A
35. 9
36. C
37. A
38. B
39. C
40. A
41. B
42. D
43. D
44. A
45. A
46. D
47. B
48. B
49. A
50. A
51. D
52. B.
53. B.
54. B
55. C.
56. B
57. B
58. C
59. D
60. B
61. B
62. B
63. B
64. A
65. C
66. C
67. A
68. B
69. B
70. C
71. D
72. C
73. C
74. A
75. A
76. B
77. B
78. A
79. B
80. A
81. A
82. A
83. C
84. B
85. B
86. C
87. A
88. B
89. A
90. B
91. D
92. B
93. C
94. B
95. C
96. C
97. A
98. D
99. B
100. A
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