Exam Questions With 100% Verified
Answers
What are the phases of menstrual cycle? -
correct answer ✅menstruation, follicular phase, ovulation, luteal
phase, and ischemic phase.
How many hours does an ovum need to be capable of fertilization?
-
correct answer ✅24 hours. (48 hours the most).
Total critical span during sex must occur for fertilization to be
successful is -
correct answer ✅72 hours or 48 hours before ovulation, plus 24
hours afterward.
Eggs are propelled into fallopian tubes (ampulla) by: -
correct answer ✅fimbriae, peristalsis of tube, and cilia of tube.
What is the zona pellucida? -
correct answer ✅it is the "ring of mucopolyssacharide fluid" and is
surrounded by "circle of cells".
,MCN (Lesson 2) "Normal Pregnancy"
Exam Questions With 100% Verified
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What is corona radiata? -
correct answer ✅it is what you called "circle of rings" which
surrounds the Zona pellucida.
How many minutes does a sperm need to be able to reach the
ovum after deposition? -
correct answer ✅5 minutes.
What final process does a sperm undergo inside the uterus? -
correct answer ✅Capacitation.
What is capacitation? -
correct answer ✅they undergo this process to be ready for
fertilization. as sperm move towards the ovum they will develop a
"sperm binding receptor site" or sticker-like attached to their head.
Sperm contains a head anf tail that is called? -
correct answer ✅Flagella.
How does a sperm travels? -
correct answer ✅They have a tail. And because of the cervical
,MCN (Lesson 2) "Normal Pregnancy"
Exam Questions With 100% Verified
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mucus they are now able to swim well. There are also uterine
contractions that help them as they travel towards the egg as they
meet in the ampulla.
(Flagella, Thin Cervical Mucus, Uterine Contractions).
What is proteolytic enzyme? -
correct answer ✅"Hyaluronidase" - enzyme that will dissolve
layets of the ovum, specifically the outer layer which is the Corona
Radiata.
(an ejaculation must contain many sperm to be able to fertilize an
egg).
Product of fertilization -
correct answer ✅zygote.
What is the difference of fraternal and identical twins? -
correct answer ✅Fraternal - 2 or 3 mature eggs then a mature
sperm will fertilize that 2 or 3 ovums that will develop a twins or
triplets.
, MCN (Lesson 2) "Normal Pregnancy"
Exam Questions With 100% Verified
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Identical - one egg plus one sperm unite then they will divide to
form twins.
What are the chromosomes of female zygote? -
correct answer ✅XX
What are the chromosomes of male zygote? -
correct answer ✅XY
Three important factors necessary for fertilization -
correct answer ✅1. Maturation of the ovum and sperm.
2. Ability of the sperm to reach the ovum. (ampulla)
3. Ability of the sperm to penetrate. (hyaluronidase)
Components of implantation -
correct answer ✅zygote, morula, blastocyst (embryoblast &
trophoblast).