Unit 19: Vocabulary

Please study the 20 vocabulary terms below. Then press the Mark Complete button to continue.
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afterbirth
the material providing nutrition for an unborn baby which is expelled after the birth
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The placenta is delivered as part of the afterbirth with a small gush of blood.
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amnion
a membrane covering an embryo when first formed
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The unborn baby is surrounded by the amnion which protects it.
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amniorrhexis
a breakage or rupture of the amnion
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Amniorrhexis is more commonly known as "breaking water" and is a sign that birth is imminent.
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amniotic fluid
liquids surrounding the unborn baby
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Amniotic fluid swallowed by the fetus helps in the formation of the gastrointestinal tract.
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amniotic sac
a mass of tissue around the unborn baby
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Rupturing of the amniotic sac usually occurs at the moment of entering labor.
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aspermia
the state of having no sperm
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He was infertile due to having aspermia.
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breech birth
a birth in which the head is not the first part of the baby to come out
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Most babies born from breech births are healthy but there is a slightly higher risk for certain problems.
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coitus
sexual intercourse
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For many people coitus is about more than just reproduction.
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conception
the very beginning of a pregnancy; the action of conceiving through fertilization and/or implantation
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Pregnancy tests start to become accurate at two weeks after conception.
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ejaculation
the discharge of semen at the moment of sexual climax
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Most of the time, ejaculation happens during an orgasm.
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fetus
an unborn baby after 9 weeks from conception
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At 12 weeks the average fetus is about the same size as a lime.
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impotent
not being able to get or maintain an erection
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His medication made him temporarily impotent.
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lactate
to produce breast milk
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It can take a couple of days for a woman to start to lactate after childbirth.
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lactogenic
causing the production of breast milk
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Oats and other cereals are well-known lactogenic foods.
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libido
sexual desire
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A decrease in libido may be an indicator of a more serious condition.
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ovum
the female sex cell or egg
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A mature ovum is released from ovaries every 28 days.
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puerperal
immediately after childbirth
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Puerperal psychosis is a severe mental illness which can include symptoms such as depression, confusion, and hallucinations.
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puerperium
the period of between 3 to 6 weeks after childbirth
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During the puerperium physiological changes to the mother's body that occurred in pregnancy revert back to normal.
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reproduction
the production of offspring by sexual intercourse
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It is important for youths to be educated on reproduction.
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semen
fluid containing sperm
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An analysis of his semen showed low motility.
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