Download Endocrine System Quiz Quiz # 2 Fall 2008

Endocrine System Quiz
Quiz # 2 Fall 2008
• Circle the letter of each correct response
Question # 1
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T4 is a _________ hormone.
A) peptide
B) steroid
C) amine.
Question # 2
• Peptide hormones typically have their
receptors located
• A) in the cell membrane of target cells
• B) inside target cells
Question # 3
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Cortisol is
A) a mineralicorticoid
B) a peptide hormone
C) secreted by the adrenal medulla
D) present in sub-normal levels in the plasma of a
person with Addison’s disease
• E) eliminated slowly from the plasma because
most is transported bound to plasma proteins
Question # 4
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Addison’s disease is an example of
A) primary hypersecretion
B) secondary hypersecretion
C) primary hyposecretion
Question # 5
• In a patient in untreated primary
hypothyroidism, plasma levels of TSH are
expected to be
• A) greater than normal
• B) within the normal range
• C) less than normal.
Question # 6
• Which of the following hormones reaches their
target cells via the hypothalamo-hypophyseal
portal system?
• A) vasopressin
• B) TSH
• C) T4
• D) dopamine
• E) prolactin
• F) corticotropin releasing hormone
Question # 7
• The most effective treatment for primary
adrenocortical insufficiency is hormone
replacement therapy with
• A) cortisol
• B) aldosterone
• C) ACTH
• D) EPI
Question # 8
• The secretion of FSH should be ______ via
long loop negative feedback in a man with
testicular cancer whose plasma testosterone
levels are greatly elevated.
• A) increased
• B) decreased
• C) unchanged.
Question # 9
• For a patient who presents with
disturbances of plasma levels of sodium and
potassium, which of the following
hormones is most likely involved:
• A) insulin
• B) aldosterone
• C) PTH
Question # 10
• A hormone that stimulates the secretion of
another hormone is called a TROPIC
hormone.
• (Write the one-word anwer in the space
provided on the answer sheet.)
Question # 11
• As concisely as possibly, explain why a
person with primary hypothyroidism (Hazel
C. from the case studies lab) has low blood
pressure and bradycardia.
• Hazel’s cells are less sensitive to EPI than they normally
would be because she is deficient in thyroid hormones.
Normal levels of thyroid hormone stimulate the
expression of adrenergic receptors which allows cells in
the heart to response more vigorously to EPI by increasing
heart rate and smooth muscles of blood vessels to contract
and elevate blood pressure in the presence of EPI.