full transcript

From the Ted Talk by NWHunter: How do contraceptives work?


Unscramble the Blue Letters


Here's what has to happen for pregnancy to occur after sexual intercourse. Sperm must swim up the vagina, through the cervical onipneg, upwards through the uertus, and into one of the two fallopian tubes. If an egg, released during that month's olvoauitn, is in the tube, one sperm has a chance to fertilize it. cpaieevntrocts are designed to prevent this process, and they work in three basic ways. They block the srepm, disable sperm before they rcaeh the uterus, or suppress ovulation. Block is the slimpest. Male and felmae condoms prevent sperm from cnmiog into contact with the vaginal scape. That barrier is also why they, unlike other ccroepvntatie methods, are able to prevent transmission of certain sexually transmitted diseases. Meanwhile, the daiprgham, cervical cap, and sponge work by being placed over the cervix, barricading the entrance to the uterus. These contraceptives are sometimes called barrier methods and can be used with spermicides, an example of the second category, daibsle. A spermicide is a chemical that immobilizes and destroys sperm. Today's spermicides come as foam, cream, jelly, siteprosoupis, and even a thin piece of translucent film that dissolves in the vagina. These products can be inserted directly into the vnaiga before intercourse, or can be combined with block methods, like a diaphragm or condom, for added proection. The third category for preventing parncngey works by suppressing the action of an egg muntraig in the ovary. If there isn't an egg available in the fillaopan tube, there's nothing for sperm to fertilize. Hormonal contraceptives, including the pill, the ptach, the Depo shot, and the vaginal ring all release synthetic versions of various combinations of progesterone and estrogen. This hormone cocktail spruseepss ovulation, keeping the irammtue egg safely sequestered in the ovary. Synthetic peosrnetgroe also has a block trick up its sleeve. It makes cervical mucus too thick and sticky for sperm to swim through esaliy. There are other contraceptives that use multiple approaches at the same time. For example, many IUDs, or intrauterine devices, contain synthetic hormones which suppress ovulation. Some also contain copper, which disable sperm while also making egg ittopimnlaan in the uterus difficult. Block, disable, or suppress: is one strategy better than the other? There are differences, but a lot of it has to do with how convenient and easy it is to use each contraceptive correctly. For example, male condoms would be about 98% effective if everyone used them perfectly. That 98% means if 100 couples correctly used condoms for a year, two women would get pregnant. But not everyone uses them correctly, so they're only 82% effective in prcctiae. Other methods, like the patch and pill, are 99% effective when they're used perlftecy. But in practice, that's 91%. Spermicide is only 85% effective, even with perfect usage, and just 71% effective with typical uagse. Another important consideration in the choice of contraceptives are side effects, which almost exclusively affect women rather than men. Hormonal methods in particular can cause symptoms like headaches, nausea, and high blood pressure, but they vary from woman to woman. That's why these mdeoths require a prescription from a dtoocr. The cicohe of contraceptive method is a personal one, and what works best for you now may change later. stisetincs also cutoinne to research new methods, such as a male pill that would pevernt sperm production. In the meantime, there are quite a few options to block sperm, disable them, or suppress eggs and keep them out of reach.

Open Cloze


Here's what has to happen for pregnancy to occur after sexual intercourse. Sperm must swim up the vagina, through the cervical _______, upwards through the ______, and into one of the two fallopian tubes. If an egg, released during that month's _________, is in the tube, one sperm has a chance to fertilize it. ______________ are designed to prevent this process, and they work in three basic ways. They block the _____, disable sperm before they _____ the uterus, or suppress ovulation. Block is the ________. Male and ______ condoms prevent sperm from ______ into contact with the vaginal _____. That barrier is also why they, unlike other _____________ methods, are able to prevent transmission of certain sexually transmitted diseases. Meanwhile, the _________, cervical cap, and sponge work by being placed over the cervix, barricading the entrance to the uterus. These contraceptives are sometimes called barrier methods and can be used with spermicides, an example of the second category, _______. A spermicide is a chemical that immobilizes and destroys sperm. Today's spermicides come as foam, cream, jelly, _____________, and even a thin piece of translucent film that dissolves in the vagina. These products can be inserted directly into the ______ before intercourse, or can be combined with block methods, like a diaphragm or condom, for added proection. The third category for preventing _________ works by suppressing the action of an egg ________ in the ovary. If there isn't an egg available in the _________ tube, there's nothing for sperm to fertilize. Hormonal contraceptives, including the pill, the _____, the Depo shot, and the vaginal ring all release synthetic versions of various combinations of progesterone and estrogen. This hormone cocktail __________ ovulation, keeping the ________ egg safely sequestered in the ovary. Synthetic ____________ also has a block trick up its sleeve. It makes cervical mucus too thick and sticky for sperm to swim through ______. There are other contraceptives that use multiple approaches at the same time. For example, many IUDs, or intrauterine devices, contain synthetic hormones which suppress ovulation. Some also contain copper, which disable sperm while also making egg ____________ in the uterus difficult. Block, disable, or suppress: is one strategy better than the other? There are differences, but a lot of it has to do with how convenient and easy it is to use each contraceptive correctly. For example, male condoms would be about 98% effective if everyone used them perfectly. That 98% means if 100 couples correctly used condoms for a year, two women would get pregnant. But not everyone uses them correctly, so they're only 82% effective in ________. Other methods, like the patch and pill, are 99% effective when they're used _________. But in practice, that's 91%. Spermicide is only 85% effective, even with perfect usage, and just 71% effective with typical _____. Another important consideration in the choice of contraceptives are side effects, which almost exclusively affect women rather than men. Hormonal methods in particular can cause symptoms like headaches, nausea, and high blood pressure, but they vary from woman to woman. That's why these _______ require a prescription from a ______. The ______ of contraceptive method is a personal one, and what works best for you now may change later. __________ also ________ to research new methods, such as a male pill that would _______ sperm production. In the meantime, there are quite a few options to block sperm, disable them, or suppress eggs and keep them out of reach.

Solution


  1. prevent
  2. space
  3. continue
  4. implantation
  5. contraceptives
  6. immature
  7. perfectly
  8. practice
  9. scientists
  10. choice
  11. contraceptive
  12. suppositories
  13. opening
  14. diaphragm
  15. progesterone
  16. sperm
  17. patch
  18. methods
  19. easily
  20. simplest
  21. fallopian
  22. usage
  23. uterus
  24. coming
  25. reach
  26. pregnancy
  27. suppresses
  28. vagina
  29. disable
  30. ovulation
  31. female
  32. doctor
  33. maturing

Original Text


Here's what has to happen for pregnancy to occur after sexual intercourse. Sperm must swim up the vagina, through the cervical opening, upwards through the uterus, and into one of the two fallopian tubes. If an egg, released during that month's ovulation, is in the tube, one sperm has a chance to fertilize it. Contraceptives are designed to prevent this process, and they work in three basic ways. They block the sperm, disable sperm before they reach the uterus, or suppress ovulation. Block is the simplest. Male and female condoms prevent sperm from coming into contact with the vaginal space. That barrier is also why they, unlike other contraceptive methods, are able to prevent transmission of certain sexually transmitted diseases. Meanwhile, the diaphragm, cervical cap, and sponge work by being placed over the cervix, barricading the entrance to the uterus. These contraceptives are sometimes called barrier methods and can be used with spermicides, an example of the second category, disable. A spermicide is a chemical that immobilizes and destroys sperm. Today's spermicides come as foam, cream, jelly, suppositories, and even a thin piece of translucent film that dissolves in the vagina. These products can be inserted directly into the vagina before intercourse, or can be combined with block methods, like a diaphragm or condom, for added proection. The third category for preventing pregnancy works by suppressing the action of an egg maturing in the ovary. If there isn't an egg available in the fallopian tube, there's nothing for sperm to fertilize. Hormonal contraceptives, including the pill, the patch, the Depo shot, and the vaginal ring all release synthetic versions of various combinations of progesterone and estrogen. This hormone cocktail suppresses ovulation, keeping the immature egg safely sequestered in the ovary. Synthetic progesterone also has a block trick up its sleeve. It makes cervical mucus too thick and sticky for sperm to swim through easily. There are other contraceptives that use multiple approaches at the same time. For example, many IUDs, or intrauterine devices, contain synthetic hormones which suppress ovulation. Some also contain copper, which disable sperm while also making egg implantation in the uterus difficult. Block, disable, or suppress: is one strategy better than the other? There are differences, but a lot of it has to do with how convenient and easy it is to use each contraceptive correctly. For example, male condoms would be about 98% effective if everyone used them perfectly. That 98% means if 100 couples correctly used condoms for a year, two women would get pregnant. But not everyone uses them correctly, so they're only 82% effective in practice. Other methods, like the patch and pill, are 99% effective when they're used perfectly. But in practice, that's 91%. Spermicide is only 85% effective, even with perfect usage, and just 71% effective with typical usage. Another important consideration in the choice of contraceptives are side effects, which almost exclusively affect women rather than men. Hormonal methods in particular can cause symptoms like headaches, nausea, and high blood pressure, but they vary from woman to woman. That's why these methods require a prescription from a doctor. The choice of contraceptive method is a personal one, and what works best for you now may change later. Scientists also continue to research new methods, such as a male pill that would prevent sperm production. In the meantime, there are quite a few options to block sperm, disable them, or suppress eggs and keep them out of reach.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
disable sperm 2
suppress ovulation 2
prevent sperm 2



Important Words


  1. action
  2. added
  3. affect
  4. approaches
  5. barricading
  6. barrier
  7. basic
  8. block
  9. blood
  10. called
  11. cap
  12. category
  13. cervical
  14. cervix
  15. chance
  16. change
  17. chemical
  18. choice
  19. cocktail
  20. combinations
  21. combined
  22. coming
  23. condom
  24. condoms
  25. consideration
  26. contact
  27. continue
  28. contraceptive
  29. contraceptives
  30. convenient
  31. copper
  32. correctly
  33. couples
  34. cream
  35. depo
  36. designed
  37. destroys
  38. devices
  39. diaphragm
  40. differences
  41. difficult
  42. disable
  43. diseases
  44. dissolves
  45. doctor
  46. easily
  47. easy
  48. effective
  49. effects
  50. egg
  51. eggs
  52. entrance
  53. estrogen
  54. exclusively
  55. fallopian
  56. female
  57. fertilize
  58. film
  59. foam
  60. happen
  61. headaches
  62. high
  63. hormonal
  64. hormone
  65. hormones
  66. immature
  67. immobilizes
  68. implantation
  69. important
  70. including
  71. inserted
  72. intercourse
  73. intrauterine
  74. iuds
  75. jelly
  76. keeping
  77. lot
  78. making
  79. male
  80. maturing
  81. means
  82. men
  83. method
  84. methods
  85. mucus
  86. multiple
  87. nausea
  88. occur
  89. opening
  90. options
  91. ovary
  92. ovulation
  93. patch
  94. perfect
  95. perfectly
  96. personal
  97. piece
  98. pill
  99. practice
  100. pregnancy
  101. pregnant
  102. prescription
  103. pressure
  104. prevent
  105. preventing
  106. process
  107. production
  108. products
  109. proection
  110. progesterone
  111. reach
  112. release
  113. released
  114. require
  115. research
  116. ring
  117. safely
  118. scientists
  119. sequestered
  120. sexual
  121. sexually
  122. shot
  123. side
  124. simplest
  125. sleeve
  126. space
  127. sperm
  128. spermicide
  129. spermicides
  130. sponge
  131. sticky
  132. strategy
  133. suppositories
  134. suppress
  135. suppresses
  136. suppressing
  137. swim
  138. symptoms
  139. synthetic
  140. thick
  141. thin
  142. time
  143. translucent
  144. transmission
  145. transmitted
  146. trick
  147. tube
  148. tubes
  149. typical
  150. usage
  151. uterus
  152. vagina
  153. vaginal
  154. vary
  155. versions
  156. ways
  157. woman
  158. women
  159. work
  160. works
  161. year