test 1 ap2

  1. The zona reticularis of the adrenal cortex produces.
       
    A) androgens.
    B) glucocorticoids.
    C) mineralocorticoids. 
    D) epinephrine. 
    E) norepinephrine.
    A
  2. The zona fasciculata of the adrenal cortex produces.
    A) androgens.
    B) glucocorticoids.
    C) mineralocorticoids.
    D) epinephrine.
    E) norepinephrine.
    B
  3. The zona glomerulosa of the adrenal cortex produces.
    A) androgens.
    B) glucocorticoids.
    C) mineralocorticoids.
    D) epinephrine.
    E) norepinephrine.
    C
  4. The adrenal medulla produces
    A) androgens.
    B) glucocorticoids.
    C) mineralocorticoids.
    D) epinephrine.
    E) corticosteroids.
    D
  5. When blood glucose levels rise:
    a) peripheral cells take up less glucose.
    b) peripheral cells begin storing glucose as glycogen.
    c) insulin is released.
    d) glucagon is released.
    e) protein synthesis decreases.
    C
  6. Cells of the adrenal cortex produce:
    a) ACTH.
    b) epinephrine.
    c) insulin.
    d) aldosterone
    e) norepinephrine
    D
  7. When blood glucose levels fall:
    a) insulin is released.
    b) peripheral cells take up less glucose.
    c) protein synthesis decreases.
    d) glucagon is released.
    e) both B and C
    D
  8. The alpha cells of the pancreas produce
    A)Glucagon
    A
  9. The beta cells of the pancreas produce
    A)Insulin
    A
  10. The following is a list of vessels and structures that are associated with the heart. 1. right atrium 2. left atrium 3. right ventricle 4. left ventricle 5. vena cavae 6. aorta 7. pulmonary trunk 8. pulmonary veins What is the correct order for the flow of blood entering from the systemic circulation?




    C.
  11. The following are components of the conducting system of the heart. 1. Purkinje fibers 2. AV bundle 3. AV node 4. SA node 5. bundle branches The sequence in which an action potential would move through this system is



    d. 4, 2, 3, 5, 1.
    e. 1, 4, 3, 2, 5.
    B.
  12. As a result of the long refractory period, cardiac muscle cannot exhibit




    C.
  13. Which of the following is greater?
    A. the concentration of calcium ions in the sarcoplasmic reticulum of skeletal muscle
    b. the concentration of calcium ions in the sarcoplasmic reticulum of cardiac muscle
    A
  14. Which of the following is greater?
    a. the number of action potentials per minute spontaneously generated by the SA node
    b. the number of action potentials per minute spontaneously generated by the AV node
    c. Neither is greater.
    A
  15. Which of the following is greater?


    C.
  16. Which of the following is greater during left ventricular systole?
    A. the pressure in the ventricle
    b. the pressure in the aorta
    c. Neither is greater.
    A
  17. Which of the following would be greater?
    a. the amount of intracellular calcium ions in cardiac muscle after beta receptors are stimulated
    B. the amount of intracellular calcium ions in cardiac muscle after muscarinic receptors are stimulated
    A
  18. The pituitary hormone that triggers the release of thyroid hormone from the thyroid gland is:



    d) LH
    e) GH
    C)
  19. ___ is not a steroid hormone.
    a) Insulin
    b) Cortisol
    c) Progesterone
    d) Aldosterone
    e) Estradiol
    A
  20. Diabetes insipidus is caused by:




    C)
  21. If the connections between the vagus nerve and the heart are severed,
    A. the Heart will beat slower.
    b. Cardiac output will decrease.
    c. Stroke volume will decrease.
    d. Nodal fibers will depolarize more slowly.
    e. Heart will beat faster.
    E
  22. The posterior pituitary gland secretes:
    a) ACTH.
    b) TSH.
    c) FSH
    d) MSH
    e) ADH
    E
  23. ________ are hormones synthesized from cholesterol

    a)Steroids
    A
  24. ADH ________.



    B)
  25. Thyroid hormone exerts its influence by ________.
    A) entering some cells and binding to intracellular receptors within the nuclei
    B) exerting only a minor effect on body metabolism
    C) causing a reduction in the number of blood vessel adrenergic receptors, and therefore decreasing blood pressure
    D) acting to decrease basal metabolic rate
    A
  26. Thyroid hormone contains the mineral:
    a) sodium.
    b) potassium.
    c) zinc.
    d) iron
    e) iodine
    E
  27. The second-messenger mechanism of hormone action operates by ________.
    A) synthesizing more of the hormone than is actually needed
    B) increasing the basal metabolic rate in the target organ
    C) not responding to a feedback mechanism
    D) binding to specific receptors and employing the services of G proteins and cAMP
    D
  28. When it becomes necessary to enlist the fight-or-flight response, a hormone that is released during the alarm phase of the general adaptation syndrome is ________.



    C)
  29. The parathyroid glands maintain adequate levels of blood calcium. This is accomplished through ________.
    A) blocking the action of growth hormone
    B) targeting the bone and activating osteoclasts so that calcium will be released
    C) antagonizing the synthesis of calcitonin
    D) slowing the activity of tissues that require calcium for activity
    B
  30. Mineralocorticoid is to aldosterone as glucocorticoid is to ________.
    A) testosterone
    B) estrogen
    C) cortisol
    D) epinephrine
    C
  31. Which of the following is not a steroid-based hormone?
    A) estrogen
    B) aldosterone
    C) epinephrine
    D) cortisone
    C
  32. Which of the following does not act as a second messenger in second-messenger systems of hormone action?
    A) cyclic AMP
    B) calmodulin
    C) cyclic GMP
    D) inositol triphosphate
    B
  33. Eicosanoids do not include ________.



    B)
  34. Glucocorticoids enable the body to deal appropriately with stress. They accomplish this by
    A) increasing blood glucose, fatty acid, and amino acid levels and enhancing blood pressure
    B) decreasing the heart rate, thus decreasing blood pressure
    C) stimulating the pancreas to release insulin
    D) blocking the neurotransmitters that prepare the body for the stress response
    A
  35. The parathyroid glands maintain adequate levels of blood calcium. This is accomplished through ________.
    A) blocking the action of growth hormone
    B) targeting the bone and activating osteoclasts so that calcium will be released
    C) antagonizing the synthesis of calcitonin
    D) slowing the activity of tissues that require calcium for activity
    B
  36. Aldosterone ________.



    D) production is greatly influenced by ACTH
    C)
  37. The only amine hormone to act like a steroid is ________.
    A) TH
    B) ACTH
    C) GH
    D)ADH
    A
  38. Blood pressure increases with all of the following, except increased
    a) Blood volume.
    b) Force of cardiac contraction.
    c) Cardiac output.
    d) Peripheral resistance.
    e) Parasympathetic innervation.
    E
  39. . All of the following are true of steroid hormones, except that they:
    a) Are lipids.
    b) Bind to receptors within the cell.
    c) Are produced by the adrenal medulla.
    d) Are produced by reproductive glands.
    e) Are structurally similar to cholesterol.
    C
  40. . The parathyroid glands produce a hormone that



    D) increases the level of potassium ions in the blood.
    E) increases the level of glucose in the blood.
    B)
  41. Steroid hormones exert their action by ________.
    A) entering the nucleus of a cell and initiating or altering the expression of a gene
    B) finding an appropriate cell receptor and initiating cAMP activity
    C) stimulating the synthesis of a glycogen
    D) increasing blood pressure
    A
  42. Virtually all of the protein or amino acid-based hormones exert their effects through intracellular ________.

    A) ions
    B) deactivators
    C) nucleotides
    D) second messengers
    D
  43. Growth hormone does all of the following, except that it




    E)
Author
Anonymous
ID
336415
Card Set
test 1 ap2
Description
AP2 TEST 1
Updated