Male and female reproductive system.

Card Set Information

Author:
hughes7
ID:
249883
Filename:
Male and female reproductive system.
Updated:
2013-12-01 02:22:17
Tags:
ap
Folders:

Description:
ap
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user hughes7 on FreezingBlue Flashcards. What would you like to do?


  1. Leads to the development of amorula and then a blastocyst
    Cleavage
  2. Embedding of the blastocyst in theuterine wall
    Implantation
  3. Leads to the formation of the first cellof the new individual
    fertilization
  4. Leads to the establishment of the three primary germ layers.
    Gastrulation
  5. Leads to enhancement of sperm motility and increasing membrane fragility to enable enzyme release from acrosomes.
    capacitation
  6. Conceptus is a term used to describe the developing human offspring.
    TRUE
  7. The period from fertilization through week eight is called the embryonic period
    True
  8. Fertilization occurs while the egg is still in the ovarian follicle.
    False
  9. Freshly deposited sperm are not capable of penetrating an oocyte
    True
  10. By 72 hours after fertilization, the egg has divided into more than 160 cells and is called the morula
    False
  11. Implantation begins six to seven days after ovulation
    True
  12. A pregnancy test involves antibodies that detect GH levels in a woman'sblood or urine
    false

    It test the levels of GnRH
  13. The body systems of the developing embryo are present in at least rudimentary form at eight weeks.
    True
  14. Of the three germ layers, the mesoderm forms the most body parts.
    True
  15. A pregnant woman urinates more often than usual because the uterus compresses the bladder, and she must also dispose of fetal metabolic wastes
    true
  16. The "fluid‐filled, hollow ball of cells" stage of development is the blastocyst.
    True
  17. The embryonic stage lasts until the end of the eighth week
    True
  18. The embryo is directly enclosed in and protected by the amnion
    True
  19. In fetal circulation, one way in which blood bypasses the nonaerated lungs is by way of the foramen ovale
    True
  20. An episiotomy is an incision made to widen the vaginal orifice, aidingfetal expulsion
    True
  21. The placenta and its attached fetal membranes are collectively called theafterbirth
    True
  22. Human placental lactogen initiates labor.
    False
  23. surfactant production in premature infants is rarely a factor in providing normal respiratory activity.
    Flase
  24. A blastocyst is a hollow ball of cells, while the morula is a solid ball of cell s.
    true
  25. a zygote is usually formed within the uterus.
    False.
  26. Cells on the dorsal surface of the two‐layered embryonic disc migrate to form a raised groove known as the ________
    A) blastocyst
    B) primitive streak
    C) germ cell formation
    D) amnion formation
    B) primitive streak
    (this multiple choice question has been scrambled)
  27. The result of polyspermy in humans is ________.

    A) mitotic insufficiency
    B) multiple births
    C) interruption of meiosis
    D) a nonfunctional zygote
    D) a nonfunctional zygote
    (this multiple choice question has been scrambled)
  28. I t is impossible for sperm to be functional (able to fertilize the egg) until after ________.
    A) they undergo capacitation
    B) they have been stored in the uterus for several days.
    C) the tail disappears
    D) they become spermatids
    A) they undergo capacitation
    (this multiple choice question has been scrambled)
  29. Milk ejection or letdown reflex is stimulated by which of the following hormones associated with pregnancy?
    A) prolactin
    B) inhibin
    C) oxytocin
    D) gonadotropin
    C) oxytocin
    (this multiple choice question has been scrambled)
  30. Estrogen and progesterone maintain the integrity of the uterine lining and prepare the mammary glands to secrete milk. Which of the following structures makes this possible during the first three months of pregnancy?
    A) the chorion
    B) the amnion
    C) corpus luteum
    D) corona radiata
    C) corpus luteum
    (this multiple choice question has been scrambled)
  31. The placenta, a vitally important metabolic organ, is made up of a contribution from mother and fetus. Which portion is from the fetus?
    A) chorion
    B) umbilicus
    C) yolk sac
    D) amnion
    A) chorion
    (this multiple choice question has been scrambled)
  32. Relaxin is a hormone produced by the placenta and ovaries. The function of this hormone is to ________
    A) block the pain of childbirth
    B) prevent morning sickness
    C) relax the pubic symphysis
    D) ensure the implantation of the blastula
    C) relax the pubic symphysis
    (this multiple choice question has been scrambled)
  33. Proteases and acrosin are enzymes. How do they function in reproduction?
    A) They neutralize the mucous secretions of the uterine mucosa.
    B) They act to break down the protective barriers around the egg,allowing the sperm to penetrate.
    C) They direct the sperm to the egg through chemical messengers.
    D) Their function is unknown.
    B) They act to break down the protective barriers around the egg,allowing the sperm to penetrate.
    (this multiple choice question has been scrambled)
  34. Which of the following is not a germ layer?
    A) mesoderm
    B) endoderm
    C) ectoderm
    D) epiderm
    D) epiderm
    (this multiple choice question has been scrambled)
  35. The formation of endodermal and ectodermal germ layers occurs at_______
    A) blastula formation
    B) gastrulation
    C) fertilization
    D) cleavage
    B) gastrulation
    (this multiple choice question has been scrambled)
  36. Which hormone maintains the viability of the corpus luteum?
    A) human chorionic gonadotropin
    B) progesterone
    C) estrogen
    D) human placental lactogen
    A) human chorionic gonadotropin
    (this multiple choice question has been scrambled)
  37. Which of the following is a highly unlikely method of producing a child?
    A) gamete intrafallopian transfer
    B) embryo transfer
    C) ectopic implantation
    D) in vitro fertilization
    C) ectopic implantation
    (this multiple choice question has been scrambled)
  38. Which of the following is not a correct matching of a fetal structure with what it becomes at birth?
    A) umbilical arteries#medial umbilical ligament
    B) ductus venosus#ligamentum venosum
    C) ductus arteriosus#ligamentum teres
    D) foramen ovale#fossa ovalis
    C) ductus arteriosus#ligamentum teres
    (this multiple choice question has been scrambled)
  39. 49) Implantation involves ________.
    A) formation of germ layers
    B) placenta completion
    C) fusion of egg and sperm
    D) embedding of the blastocyst in the uterine wall
    D) embedding of the blastocyst in the uterine wall
    (this multiple choice question has been scrambled)
  40. The umbilical arteries carry ________
    A) waste products to the placenta
    B) oxygen and metabolic wastes to the placenta
    C) oxygen and food to the fetus
    D) oxygen and waste products to the fetus
    A) waste products to the placenta
    (this multiple choice question has been scrambled)
  41. The correct sequence of pre embryonic structures is ________.
    A) zygote, blastocyst, morula
    B) zygote, morula, blastocyst
    C) blastocyst, morula, zygote
    D) morula, zygote, blastocyst
    B) zygote, morula, blastocyst
    (this multiple choice question has been scrambled)
  42. Which of the following is not assessed as part of the Apgar score?
    A) respiration
    B) muscle tone
    C) heart rate
    D) temperature
    D) temperature
    (this multiple choice question has been scrambled)
  43. Hormones concerned with events of lactation include ________.
    A) estrogen
    B) oxytocin
    C) hCG
    D) progesterone
    B) oxytocin
    (this multiple choice question has been scrambled)
  44. Initially, the implanted embryo obtains its nutrition by ________
    A) simple diffusion of nutrients from the uterine secretions
    B) the blood supply of the placenta.
    C) nutrient stores in the embryonic cells
    D) digestion of endometrial cells
    D) digestion of endometrial cells
    (this multiple choice question has been scrambled)
  45. Onset of labor may be a result of all of the following factors except_______
    A) contraction‐related increased emotional and physical stress
    B) high estrogen levels
    C) aspirin and similar drugs
    D) secretion of Oxycontin
    C) aspirin and similar drugs
    (this multiple choice question has been scrambled)
  46. Select the correct statement about fertilization.
    A) If estrogen is present, the pathway through the cervical opening is blocked from sperm entry.
    B) Both spermatozoa and the ovulated secondary oocyte remain viable for about 72 hours in the female reproductive tract.
    C) Millions of sperm cells are destroyed by the vagina's acidic environment.
    D) Once inside the uterus, most sperm cells are protected and remain viable.
    C) Millions of sperm cells are destroyed by the vagina's acidic environment.
    (this multiple choice question has been scrambled)
  47. 57) Shortly after implantation ________.
    A) the embryo gastrulates (within 3 days)
    B) maternal blood sinuses bathe the inner cell mass
    C) the trophoblast forms two distinct layers
    D) myometrical cells cover and seal off the blastocyst
    C) the trophoblast forms two distinct layers
    (this multiple choice question has been scrambled)
  48. The dorsal surface cells of the inner cell mass form ________
    A) the notochord
    B) one of the fetal membranes
    C) the primitive streak
    D) a structure called the embryonic disc
    C) the primitive streak
    (this multiple choice question has been scrambled)
  49. Muscle tissue is formed by the ________.
    A) ectoderm
    B) epiderm
    C) mesoderm
    D) endoderm
    C) mesoderm
    (this multiple choice question has been scrambled)
  50. Neural tissue is formed by the ________
    A) mesoderm
    B) ectoderm
    C) endoderm
    D) epiderm
    B) ectoderm
    (this multiple choice question has been scrambled)
  51. The trophoblast is mostly responsible for forming the ________.
    A) archenteron
    B) lining of the endometrium
    C) placental tissue
    D) allantois
    C) placental tissue
    (this multiple choice question has been scrambled)
  52. The cardiovascular system of a newborn must be adjusted after the infant takes its first breath. Which of the following is also true?
    A) The urinary system is activated at birth.
    B) The ductus venosus is disconnected at the severing of the umbilical cord and all visceral blood goes into the vena cava.
    C) The ductus arteriosus constricts and is converted to the ligamentum arteriosum.
    D) The foramen ovale between the atria of the fetal heart closes at the moment of birth.
    C) The ductus arteriosus constricts and is converted to the ligamentum arteriosum.
    (this multiple choice question has been scrambled)
  53. S perm move to the uterine tube through uterine contractions and theenergy of their own flagella. What other factor is involved in sperm movement?
    A) hormonal attraction to the ova
    B) the cilia on the apex of the cells lining the endometrium
    C) reverse peristalsis of the uterus and uterine tubes
    D) the increased temperature in the vagina, which stimulates sperm motility
    C) reverse peristalsis of the uterus and uterine tubes
    (this multiple choice question has been scrambled)
  54. At which stage of labor is the "afterbirth" expelled?
    A) full dilation
    B) dystocia
    C) placental
    D) expulsion
    C) placental
    (this multiple choice question has been scrambled)
  55. Which hormone is not produced by the placenta?
    A) relaxin
    B) inhibin
    C) human placental lactogen
    D) human chorionicthyrotropin
    B) inhibin
    (this multiple choice question has been scrambled)
  56. During which stage of labor is the fetus delivered?
    A) placental stage
    B) expulsion stage
    C) gastrula stage
    D) dilation stage
    B) expulsion stage
    (this multiple choice question has been scrambled)
  57. Implantation of the blastocyst is the result of all of the following except________
    A) proteolytic enzymes produced by the trophoblast cells
    B) settling of the blastocyst onto the prepared uterine lining
    C) adherence of the trophoblast cells to the endometrium
    D) phagocytosis by the trophoblast cells
    D) phagocytosis by the trophoblast cells
    (this multiple choice question has been scrambled)
  58. Cleavage as part of embryonic development is distinctive because it involves ________.
    A) splitting the cell into two separate cells
    B) the fusion of gametes
    C) cell division by mitosis with little or no growth between successive divisions
    D) meiosis
    C) cell division by mitosis with little or no growth between successive divisions
    (this multiple choice question has been scrambled)
  59. Which of the following is true in reference to what may pass through the placental barriers?
    A) hormones, blood cells, and nutrients
    B) nutrients, respiratory gases, wastes, and alcohol
    C) respiratory gases, hormones, nutrients, and blood cells
    D) nutrients and respiratory gases only
    B) nutrients, respiratory gases, wastes, and alcohol
    (this multiple choice question has been scrambled)
  60. Which of the following is not usually considered a teratogen?
    A) German measles
    B) wine
    C) aspirin
    D) thalidomide
    C) aspirin
    (this multiple choice question has been scrambled)
  61. Derivatives of the ectoderm include ________. A) connective tissues
    B) serosae of the ventral body cavity
    C) epithelium of the pineal and pituitary glands
    D) epithelium of the reproductive tract
    C) epithelium of the pineal and pituitary glands
  62. Derivatives of the mesoderm include ________.
    A) all nervous tissue
    B) glandular derivatives of the digestive tract
    C) endothelium of blood and lymph vessels
    D) epithelium of the digestive tract
    C) endothelium of blood and lymph vessels
    (this multiple choice question has been scrambled)
  63. Derivatives of the endoderm include ________. A) epithelium of the respiratory tract
    B) synovial membranes of the joints
    C) organs of the urogenital system
    D) blood, bone marrow, and lymphoid tissue
    A) epithelium of the respiratory tract
  64. Developmental events during weeks 9‐12 include ________.
    A) sex readily detected from the genitals
    B) head larger than body
    C) the cardiovascular system becoming fully functional
    D) fetal position assumed
    A) sex readily detected from the genitals
    (this multiple choice question has been scrambled)
  65. Which of the choices below occurs if fertilization of the ovum occurs and implantation takes place?
    A) The ovarian cycle begins.
    B) Increased levels of FSH will be produced.
    C) The corpus luteum is maintained until the placenta takes over its hormone‐producing functions.
    D) The corpus luteum degenerates and becomes the corpus albicans.
    C) The corpus luteum is maintained until the placenta takes over its hormone‐producing functions.
    (this multiple choice question has been scrambled)
  66. S elect the correct statement about the special fetal blood vessels.
    A) The hepatic portal vein forms from the umbilical artery.
    B) The fossa ovalis becomes the foramen ovale.
    C) The umbilical vein becomes the ligamentum teres.
    D) The distal parts of the umbilical arteries form the superior vesical arteries.
    C) The umbilical vein becomes the ligamentum teres.
    (this multiple choice question has been scrambled)
  67. Which of the following statements about the events of fertilization is not true?
    A) The two pronuclei divide.
    B) The head of the sperm forms the male pro nucleus.
    C) Proteases and acrosin proteinases of the sperm disperse the cells of the corona radiata of the oocyte.
    D) The secondary oocyte completes the second meiotic division.
    A) The two pronuclei divide.
    (this multiple choice question has been scrambled)
  68. The decidua basalis is ________.
    A) destined to remain in the uterus after the birth of the infant
    B) not a maternal contribution to the placenta
    C) located between the developing embryo and the myometrium
    D) the tissue that surrounds the uterine cavity face of the implantedembryo
    C) located between the developing embryo and the myometrium
    (this multiple choice question has been scrambled)
  69. The first "milk" the mother produces is called ________.
    Colostrum
  70. As the newborn suckles, the mother's pituitary produces________ to assist in producing milk.
    Prolactin
  71. The act of giving birth is called ________.
    Parturituion
  72. A fter the egg is fertilized, it is called a(n) ________.
    Zygote
  73. The ________ cells of the blastocyst will take part in placental formation.
    trophoblast
  74. The ________ stage of development is the first in which all three germ layers of tissue are evident.
    gastrula
  75. _______ is a tissue with star‐shaped cells that are free to migrate widely throughout the embryo.
    mesenchyme
  76. Neural tissue develops from the ________.
    ectoderm
  77. Which cells invade the endometrium, digesting the uterine cells they contact, so that implantation of the blastocyst can occur?
    syncyitical trophoblast cells
  78. What embryonic structure is the structural base for the umbilical cord?
    allantois
  79. Explain what triggers a baby’s first breath
    A buildup of carbon dioxide in the baby’s blood. causes acidosis. it will excite the respiratory control centers in the baby's brain and will trigger their first inspiration.

What would you like to do?

Home > Flashcards > Print Preview