Exam 4 Study Guide (Mastering A&P)

  1. Sperm is produced in the __________ of the testes.

    C. seminiferous tubules
  2. Sperm are stored in the __________.

    B. epididymis
  3. Which of the following does NOT add substances to seminal fluid?

    B. urethra
  4. Enzymes that allow sperm to penetrate the egg are located in the __________ of the sperm cell.

    A.  acrosome
  5. The release of __________ encourages interstitial endocrine cells to release __________.

    D. luteinizing hormone; testosterone
  6. The __________ connects the uterus to the vagina.

    B. cervix
  7. The __________, a layer of the endometrium, is shed during each menstruation and is then regenerated by the __________.

    B. stratum functionalis; stratum basalis
  8. Which layer of the uterus is the site for implantation of a fertilized egg?

    B. stratum functionalis of the endometrium
  9. What hormone promotes ovulation?

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    D. luteinizing hormone (LH)
  10. During what phase of the female's uterine (menstrual) cycle is the uterine lining shed?

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    C. menstrual phase
  11. What event occurs during the proliferative phase?

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    C. ovulation
  12. A surge in __________ directly triggers ovulation.

    B. luteinizing hormone (LH)
  13. During the secretory phase of the uterine cycle __________.

    D. the endometrium prepares for implantation
  14. Which of the following is an effect of estrogen in females?

    C. promotes oogenesis
  15. Oocytes only complete meiosis II if they are fertilized. True or False
  16. What is the function of the blood testis barrier?

    A. to prevent activation of the immune system of the male against the developing sperm
  17. What is the product of spermatogenesis?

    D. formation of haploid spermatozoa
  18. What amino acid-based hormone uses the direct gene activation method illustrated in this image?

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    A. thyroxine
  19. At which point does the hormone bind to its intracellular receptor? Determine the receptor-hormone complex. Select from letters A-D.

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    A. C
  20. Which of the following occurs in situations where more than one hormone produces the same effects at the target cell and their combined effects are amplified?

    B. synergism
  21. __________ is the situation when one hormone cannot exert its full effects without another hormone being present.

    A. Permissiveness
  22. The stimuli causing endocrine glands to secrete their hormones in direct response to changing blood levels of certain critical ions and nutrients are called __________.

    B.  humoral stimuli
  23. Up-regulation involves the loss of receptors and prevents the target cells from overreacting to persistently high hormone levels. True or False
    False; down-regulation
  24. The hypothalamus is known to control the activity of the anterior pituitary, which has traditionally been called the "master endocrine gland". True or False
  25. What is the primary function of hormones?

    B. alter cell activity
  26. Which of the following is NOT a major type of stimulus that triggers endocrine glands to manufacture and release hormones?

    C. enzymatic
  27. What is the target organ of thyroid-stimulating hormone (TSH)? Select from letters A-D.

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    B. C
  28. Where is thyroid-releasing hormone (TRH) made? Select from letters A-D.

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    B. A
  29. Hormones that regulate the secretory action of other endocrine glands are called __________.

    B. tropins
  30. Which of the following hormones stimulates the adrenal cortex to release glucocorticoids that help the body to resist stressors?

    C. adrenocorticotropic hormone
  31. Which of the following hormones mainly serves to stimulate milk production by the breasts?

    D. prolactin
  32. Which of the following hormones helps the body avoid dehydration and water overload?

    B. antidiuretic hormone
  33. Which of the following hormones regulates blood calcium ion levels?

    B. parathyroid hormone
  34. Which of the following pairs correctly matches the adrenal gland zone or area with the class of hormones it produces?

    A. zona glomerulosa: mineralocorticoidszona
  35. Which hormone(s) is/are essential to our ability to deal with stress?

    C. glucocorticoids
  36. Aldosteronism will cause ______.

    A.  decreased secretion of renin
  37. Which pancreatic hormone functions to lower blood glucose levels?

    B.  insulin
Card Set
Exam 4 Study Guide (Mastering A&P)
Biology 103A