Physio. Preg Word Scramble
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Question | Answer |
gametogenesis | development of ova in the woman & sperm in the man |
oogenesis | formation of female gamete |
spermatogenesis | formation of male gamete |
meiosis | process in which cells divide to form gametes |
when conception occurs | human fertilization occurs when the sperm penetrates an ovum and units with it |
when ovulation occus | approximately 14 days before a woman's next menstrual cycle would begin |
estimated an ovum survives | no longer than 24 hours after its release at ovulation |
ovum transportation | mature ovum released on the surface of the ovary where it's picked up by the fallopian tube and transported through tube while awaiting fertilization |
where does fertilization occur | distal 3rd of fallopian tube |
when does ovum (fertilized or not) enter uterus | approximately 3 days after release from ovary |
how long most sperm survive in female reproductive tract | no longer than 24 hours |
how long may some sperm survive in female reprodcutive tract | 80 hours |
what fluid(s) from the male enters the cervix? | only sperm cells |
where does the seminal fluid enter? | stays in vagina |
how many sperm cells reach the fallopian tubes? | fewer than 50-150 |
t/f sperm are not immediately ready to fertilize the ovum | true |
capacitation | process sperm undergo in order to penetrate the protective layers surrounding an ovum |
fertilization | occurs when one spermatozoon enters the ovum and the 2 nuclei containing the parents' chromosomes merge |
pre-embryonic period | first 2 weeks after conception around 4th day zygote enters uterus |
how long does zygote divide? | until it reaches 16 cells |
what is a 16 cell zygote called? | morula |
outer cells of morula do what? | secrete fluid forming a blastocyst a sac in the fetus |
inner cell mass of the morula develops in the _____ | fetus |
the outer layer of cells of the morula develops as | the placenta & fetal membranes |
when blastocyst contains approximately ____ cells, it enters the uterus | 100 |
blastocyst lingers in uterus how many days before implantation | 2-4 |
endometrium called _______ when implantation occurs | decidua |
when does implantation occur? | between 6th-10th days after conception |
what does the zygote secrete to signal to the woman's body that pregnancy has begun? | hCG |
what does hCG cause? | the corpus luteum to continue to secrete estrogen & progesterone until the placenta takes over the function |
where does normal implantation occur? | upper uterus & slightly more often on the posterior wall |
the primary chorionic vilii eventually form which side of the placenta? | fetal |
the decidua basalis forms which side of the placenta? | maternal |
when is the zygote fully embedded withing the uterus? | by 10 days |
embryonic period | 3rd-8th week |
by the end of which week are all major organ systems are in place? | 8th |
structures of vulnerable to damage from teratogens and why? | embryonic period they're developing rapidly |
what hormones does the placenta produce? | progesterone estrogen hCG HPL |
"dirty duncan" | maternal side of placenta |
"shiny schultz" | fetal side of placenta |
placenta functions | metabolic transfer endocrine |
amnion | inner membrane |
chorion | outer membrane |
amniotic sac | sace made up of the chorion & amnion that contains the fetus & amniotic fluid |
where is amniotic fluid derived from? | fetal urine fluid transported from maternal blood across the amnion |
approximately how much amniotic fluid present at term? | 700-800mL |
oligohydramnios | <400mL at term |
hydramnios | <2000mL at term |
umbilical cord contains how many arteries & how many veins? | 2 arteries 1 vein |
3 parts of the umbilical cord? | 2 arteries 1 vein wharton's jelly |
monozygotic twins | twins carrying same genetic code & are same sex 1 becomes 2 |
dizygotic twins | 2 different eggs & 2 different sperm |
Created by:
ealongo
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