BIO 245- Exams 1-3| 157 questions| 100% correct
If the patient is showing symptoms of hyperthyroidism and has a goiter, which of the following
hormone panels could be consistent with this? Correct Answer: low TRH, low TSH, high TH;
low TRH, high TSH, high TH
When baroreceptors in the carotid and aortic bodies register increased blood pressure, this
triggers Correct Answer: decreased secretion of aldosterone
PCO2 through tricuspid Correct Answer: 45-46mmHg
Hormones of the hypothalamus Correct Answer: GnRh, GHRH, SS, TRH, DA, CRH
Hormones of anterior pituitary Correct Answer: FSH and LH, GH, TSH, Prolactin, ACTH
Third-glands and hormones Correct Answer: gonads, liver, organs and tissues, thyroid, breasts,
adrenal cortex
Which factor stimulates hunger? Correct Answer: Ghrelin
If someone has a slight regurgitation of blood into the left atrium due to a torn chordae tendinae
in the valve, they have Correct Answer: mitral insufficiency
PO2 in alveolar capillaries post-gas exchange Correct Answer: 95-100mmHg
What factor inhibits hunger? Correct Answer: Leptin
PCO2 in pulmonary artery Correct Answer: 45-46mmHg
Bradycardia is characterized by Correct Answer: low resting heart rate
Put the following events in order of occurrence:
1. lysosomal enzymes release T3 and T4 from thyroglobulin,
2. thyroglobulin-bound T3 and T4 are sequestered in vesicles,
3. iodide is attached to tyrosine rings and thyroglobulin,
4. iodide is transported into the follicle lumen
5. T3 and T4 are released Correct Answer: 43215
Type II diabetes is characterized by all of the following... Correct Answer: increased blood
glucose, increased susceptibility to kidney disease, increased likelihood of development in
overweight individuals, target tissue resistance to insulin
During exercise, a person's CO increases to 15L/min, ESV is 50mL and EDV is 175mL. What is
their heart rate? Correct Answer: CO/(EDV-ESV)= 120
PO2 through pulmonary semi-lunar valve Correct Answer: 40mmHg
, All of the following trigger insulin secretion except Correct Answer: increased plasma
epinephrine
Place these structures in the order that blood would cycle through the circulatory system (not all
structures listed). Start in the left ventricle.
1. aortic arch
2. bicuspid
3. systemic veins
4. left atrium
5. right ventricle
6. pulmonary vein Correct Answer: 135642
PO2 in systemic capillaries pre-gas exchange Correct Answer: 95-100mmHg
A person is taking a drug that increases the tubular secretion of hydrogen ions in the nephron. If
not monitored closely, what could be the resulting problem with taking this drug? Correct
Answer: metabolic alkalosis
Angiotensin II acts to do which of the following? Correct Answer: vasoconstrictor
What triggers insulin secretion? Correct Answer: increased plasma glucose, increased GIP
secretion, increased plasma amino acids, increased parasympathetic activity
If the pituitary gland is removed from a human subject, which of the following is likely to occur?
Correct Answer: the thyroid gland will atrophy and plasma TH levels will be reduced
If action potential propagation through the bundle of His were blocked, which of the following
event would you expect to occur? Correct Answer: there would be a slowing of the rate of
contraction of the ventricles, the atria would contract more frequently than the ventricles, the SA
node would no longer set the pace for ventricular contraction
Put the following structures in order as blood is filtered:
collecting duct, urethra, bladder, ureter, glomerulus Correct Answer: glomerulus, collecting
duct, ureter, bladder, urethra
Hypertrophy of the adrenal cortex could result from Correct Answer: excessively rapid
clearance of cortisol from the circulation, a tumor of the pituitary gland that secretes excessive
amounts of ACTH, inactivation of enzymes that are required to synthesize corticosteroids
Type B+ blood has Correct Answer: B and D antigens, A antibodies
If the urine flow rate is 1.0mL/min, the plasma concentration of substance X is 2mOsm, and the
urine concentration is 180mOsm, what is the GFR (clearance rate) of substance X? Correct
Answer: 90mL/min
If the patient is showing symptoms of hyperthyroidism and has a goiter, which of the following
hormone panels could be consistent with this? Correct Answer: low TRH, low TSH, high TH;
low TRH, high TSH, high TH
When baroreceptors in the carotid and aortic bodies register increased blood pressure, this
triggers Correct Answer: decreased secretion of aldosterone
PCO2 through tricuspid Correct Answer: 45-46mmHg
Hormones of the hypothalamus Correct Answer: GnRh, GHRH, SS, TRH, DA, CRH
Hormones of anterior pituitary Correct Answer: FSH and LH, GH, TSH, Prolactin, ACTH
Third-glands and hormones Correct Answer: gonads, liver, organs and tissues, thyroid, breasts,
adrenal cortex
Which factor stimulates hunger? Correct Answer: Ghrelin
If someone has a slight regurgitation of blood into the left atrium due to a torn chordae tendinae
in the valve, they have Correct Answer: mitral insufficiency
PO2 in alveolar capillaries post-gas exchange Correct Answer: 95-100mmHg
What factor inhibits hunger? Correct Answer: Leptin
PCO2 in pulmonary artery Correct Answer: 45-46mmHg
Bradycardia is characterized by Correct Answer: low resting heart rate
Put the following events in order of occurrence:
1. lysosomal enzymes release T3 and T4 from thyroglobulin,
2. thyroglobulin-bound T3 and T4 are sequestered in vesicles,
3. iodide is attached to tyrosine rings and thyroglobulin,
4. iodide is transported into the follicle lumen
5. T3 and T4 are released Correct Answer: 43215
Type II diabetes is characterized by all of the following... Correct Answer: increased blood
glucose, increased susceptibility to kidney disease, increased likelihood of development in
overweight individuals, target tissue resistance to insulin
During exercise, a person's CO increases to 15L/min, ESV is 50mL and EDV is 175mL. What is
their heart rate? Correct Answer: CO/(EDV-ESV)= 120
PO2 through pulmonary semi-lunar valve Correct Answer: 40mmHg
, All of the following trigger insulin secretion except Correct Answer: increased plasma
epinephrine
Place these structures in the order that blood would cycle through the circulatory system (not all
structures listed). Start in the left ventricle.
1. aortic arch
2. bicuspid
3. systemic veins
4. left atrium
5. right ventricle
6. pulmonary vein Correct Answer: 135642
PO2 in systemic capillaries pre-gas exchange Correct Answer: 95-100mmHg
A person is taking a drug that increases the tubular secretion of hydrogen ions in the nephron. If
not monitored closely, what could be the resulting problem with taking this drug? Correct
Answer: metabolic alkalosis
Angiotensin II acts to do which of the following? Correct Answer: vasoconstrictor
What triggers insulin secretion? Correct Answer: increased plasma glucose, increased GIP
secretion, increased plasma amino acids, increased parasympathetic activity
If the pituitary gland is removed from a human subject, which of the following is likely to occur?
Correct Answer: the thyroid gland will atrophy and plasma TH levels will be reduced
If action potential propagation through the bundle of His were blocked, which of the following
event would you expect to occur? Correct Answer: there would be a slowing of the rate of
contraction of the ventricles, the atria would contract more frequently than the ventricles, the SA
node would no longer set the pace for ventricular contraction
Put the following structures in order as blood is filtered:
collecting duct, urethra, bladder, ureter, glomerulus Correct Answer: glomerulus, collecting
duct, ureter, bladder, urethra
Hypertrophy of the adrenal cortex could result from Correct Answer: excessively rapid
clearance of cortisol from the circulation, a tumor of the pituitary gland that secretes excessive
amounts of ACTH, inactivation of enzymes that are required to synthesize corticosteroids
Type B+ blood has Correct Answer: B and D antigens, A antibodies
If the urine flow rate is 1.0mL/min, the plasma concentration of substance X is 2mOsm, and the
urine concentration is 180mOsm, what is the GFR (clearance rate) of substance X? Correct
Answer: 90mL/min
