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60 Cards in this Set
- Front
- Back
When all three germ layers a present (ectoderm, endoderm, and mesoderm), the embryo is termed a
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Gastrula
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Which of the following associations is mismatched?
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Blastocyst - Gut formation
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Which of these is a process of development?
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All of these are correct (morphogenesis, growth, clevage, and differentiation)
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In human development, which part of the blastocyst will develop into a fetus?
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Inner cell mass
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In humans, the fetus
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All of these are correct
(-Has four extraembryonic membranes -has developed organs and is recognizably human -is dependent upon the placenta...) |
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The placenta does not?
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Cause the embryo to implant itself
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Which of these organs cannot be traced back to the germ layers?
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All organs can be traced to germ layers
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Which hormone can be administered to begin the process of childbirth?
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Oxytocin
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Only one sperms enters an egg because...
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Of chemical changes in the egg's surface
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Which is a correct sequence that ends with the stage that implants?
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Ovulation, Fertilization, Clevage, Morula, Early blastocyst
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Differentiation is equivalent to which term?
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Specialization
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Two germ layers, not three, are present in the
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Embryonic disk
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Which process refers to the shaping of the embryo and involves cell migration?
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Morphogenesis
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At 25 days the embryo has
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-All the extraembryonic menbranes
-Already undergone gastrulation |
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At two months, the embryo has
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(All but B)
-Become a fetus -A head, arms, and legs -A nose and eyes |
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Which of these statements is correct?
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(ALL CORRECT)
-The head starts out big but then gets smaller -The hands and feet begin as paddlelike -The heart is at its first tubular -The placenta functions until birth occurs |
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Which length can be best associated with the embryo at the end of two months when it becomes a fetus?
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38 milimeters, about 1.5 iinches
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Male/female gender can be accurately determined as soon as the
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Embryo is about 3 months
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In a vasectomy, the ______ are cut
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Vas deferentia
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Which hormone is involved with uterine contractions and lactation?
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Oxytocin
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An episiotomy is an incision to
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Expand the vaginal opening
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Which may occur during pregnancy?
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ALL
(-Overeating -Increased urination -Increased energy levels) |
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Which hormone does the birth control pill contain?
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Estrogen
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The hormones of the birth control pill shut down (directly) the
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Anterior pituitary
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The birth control pill also prevents a pregnancy by secondary methods such as
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ALL
(-Slowing down the transport of the embryo to the uterus -Keeping the cervical mucus thick and impenetrable by sperm -Preventing normal buildup of the uterine lining) |
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The primary action of the birth control pill is to prevent
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Ovulation
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Who should use an IUD?
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Middle-aged to older women who have has a child
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An IUD prevents pregnancy by preventing
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Implantation
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What are possible side effects of an IUD?
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ALL
(-Expulsion -Perforation of the uterus -Uterine infection) |
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The diaphragm, cervical cap, and sponge all prevent pregnancy by preventing
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Fertilization
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Which means of birth control offers possible protection against sexually transmitted diseases?
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Condom
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Mifepristone is administered
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After intercourse if menstruation is late
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Uterine aspiration is performed
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During the first three months of pregnancy
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With GIFT, fertilization occurs in
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The uterine tubes
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A surrogate mother is a woman who
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Is paid to have a baby
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The sperm used in artificial insemination are from
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All possible
(-the woman's husband -a stranger -a mixture of her husband and that of a stranger) |
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During regular artificial insemination, sperm are placed in the
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Vagina
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AIDS patients generally die due to which of the following causes?
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Opportunistic infections
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Which of the following statements is not true about genital warts?
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They often go undetected
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When the herpesvirus is latent, it resides in which area?
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Ganglia of sensory nerves
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Which of the following is true about STDs?
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They can be transmitted by simply touching lesions
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Which of the following is prescribed to treat herpes?
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Acyclovir
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Hep C is generally transmitted through which of the following mechanisms?
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Contact with blood
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Hep B is generally transmitted through which of the following mechanisms?
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Sexual contact
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Hepatitis affects which organ?
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Liver
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Which of the following is the causative agent of Chlamydia infections?
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Bacterium
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Chlamydia infections can lead to which of the following?
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Pelvic inflammatory disease
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Gonorrhea is caused by which of the following?
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Bacterium
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Which of the following areas cannot be infected with gonorrhea?
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ALL CAN
(-Eye -Urethra -Vagina -Anus) |
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Which of the following is indicative of the first stage of a syphilis infection?
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Chancre
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Syphilis is diagnosed by a blood test that determines the presence of which of the following?
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Reagin
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Pubic lice fall into which class of infectious agent?
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Animals
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Which of the following is not a possible route for transmission of HIV?
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Sharing utensils
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Which of the following is the least likely route for HIV transmission?
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French kissing
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Which continent has the greatest prevalence of HIV infection?
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Africa
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Which of the following is generally not true of the acute phase of HIV infection?
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Patients show acute sympstoms
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Which of the following is not an opportunistic infection observed in AIDS patients?
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Choriogenic aplasia
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Which of the following terms is used to describe the remaining viral sequence after the genome of HIV integrates into the host cell chromosome?
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Provirus
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Which of the following is the most successful AIDS drug?
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AZT
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Which of the following is the primary host for the HIV virus?
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T lymphocytes
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