BIO 669 Exam 2 Questions with All Correct Answers
A clinical feature of addison disease is:
a. Truncal (abdominal) obesity
b. Muscle wasting and thin extremities
c. Cardiac hypertrophy and hypertension
d. Hyperpigmentation - Answer- d. Hyperpigmentation
Decreased hypothalamic fun...
d. Hyperpigmentation - Answer- d. Hyperpigmentation
Decreased hypothalamic function of all associated hormones will result in a increase in
the anterior pituitary production/release of:
a. Prolactin
b. Luteinizing hormone (LH)
c. Growth hormone (GH)
d. Thyroid stimulating hormone (TSH) - Answer- a. Prolactin
In primary hyposecretion of the thyroid hormones,
a. None of the above are true
b. Levels of thyroid hormones in the blood decrease
c. All of the above are true
d. Levels of TSH in the blood decrease - Answer- d. Levels of thyroid hormones in the
blood decrease
Hormones affect only specific tissues because:
a. The blood carried to the specific tissues affected
b. The cells allow the hormones to cross their plasma membrane
c. Only cells with the matching receptor will be affected
,d. Hormones are not specific and affect every cell - Answer- c. Only cells with the
matching receptor will be affected
Which of the following statements is INCORRECT?
a. Metabolic syndrome is often described as a condition of hypertension, dyslipidemia
(high triglycerides, low HDL) and above normal glucose levels
b. Type I diabetes is more commonly associated with diabetic ketoacidosis
c. Type II diabetes is more commonly associated with hyperosmolar nonketotic
syndrome
d. Type I diabetes develops rapidly and is not associated with obesity - Answer- d. Type
I diabetes develops rapidly and is not associated with obesity
Thyroid carcinoma is the most common endocrine cancer, and is most commonly
caused by:
a. Parasite infection
b. Ionizing radiation, usually as a child or teen
c. Insufficient oxygen around the time of birth
d. Genetics and family history - Answer- b. Ionizing radiation, usually as a child or teen
Absence of thyroxine would result in
a. Increased heart rate and increased force of contraction
b. High metabolic
c. Exophthalmos
d. Depression of the CNS and lethargy - Answer- d. Depression of the CNS and
lethargy
Calcitonin is secreted by the ___________ gland.
a. Adrenal
b. Parathyroid.
c. Pituitary
d. Thyroid - Answer- d. Thyroid
,The pineal gland is responsible for secretion of:
a. Insulin
b. Melatonin
c. ACTH
d. Prolactin - Answer- b. Melatonin
Which of the following is an example of permissiveness?
a. Glucagon increases blood glucose levels and insulin decreases blood glucose levels
b. All of the above
c. Estrogen stimulates the synthesis of progesterone receptors in the endometrium
d. Glucagon, epinephrine and cortisol all increase blood glucose levels - Answer- c.
Estrogen stimulates the synthesis of progesterone receptors in the endometrium
Diabetes insipidus is best described as:
a. An inability to be able to dilute the urine
b. Water retention and weight gain
c. An insufficiency in ADH amount or response
d. Hyponatremia and decreased plasma osmolarity - Answer- c. An insufficiency in ADH
amount or response
While the primary stimulation of aldosterone secretion is angiotensin II, __________
can also directly stimulate secretion.
a. A drop in Na+ or rise in K+ plasma levels
b. Growth Hormone
c. Increased plasma glucose levels
d. Thyroid Hormone - Answer- a. A drop in Na+ or rise in K+ plasma levels
If a cell undergoes up-regulation, its response to that matching hormone is:
a. More sensitive due to increase number or affinity of receptors
, b. Reduced because of blockage of signaling mechanisms
c. Increased because of higher concentrations of hormone
d. Less sensitive due to decreased number or affinity of receptors - Answer- a. More
sensitive due to increase number or affinity of receptors
Primary hyperparathyroidism will result in:
a. Strengthening and widening of bones
b. Decrease in red blood cells production
c. Excessive PTH release and increased levels of plasma Ca++
d. Hyperphosphatemia - Answer- c. Excessive PTH release and increased levels of
plasma Ca++
The hormone that causes reabsorption of Na+ ions in the kidneys is:
a. Growth hormone
b. Follicle stimulating hormone
c. Aldosterone
d. T3 and t4
e.Luteinizing hormone - Answer- c. Aldosterone
Diabetic ketoacidosis occurs most directly as a result of _____ leading to increased
lipolysis and formation of ketone bodies.
a. Increased stress hormones
b. Profound insulin insufficiency
c. Insulin resistance with a mild decrease in insulin
d. Hyperglycemia - Answer- b. Profound insulin insufficiency
Which of the following adrenal hormones is secreted by chromaffin cells?
a. Cortisol
b. Epinephrine
c. Androgens
d. Aldosterone - Answer- b. Epinephrine
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