A&P Final Lab Exam Development and Heredity || with Error-free Solutions.
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A&P Development And Heredity || Wit
Which of the following terms describes the rapid mitotic divisions of a conceptus in the pre-embryonic period? correct answers cleavage
Which of the following structures implants in, or attaches to, the endometrium of the uterus? correct answers blastocyst
Which of the following structures re...
which of the following terms describes the rapid m
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A&P Final Lab Exam Development and Heredity || with
Error-free Solutions.
Which of the following terms describes the rapid mitotic divisions of a conceptus in the pre-
embryonic period? correct answers cleavage
Which of the following structures implants in, or attaches to, the endometrium of the uterus?
correct answers blastocyst
Which of the following structures releases human chorionic gonadotropin (hCG)? correct
answers syncytiotrophoblast
What is the science that studies the changes in form and function that begins at fertilization, with
the union of gametes, and continues throughout life? correct answers developmental biology
What results from the fertilization of a sperm cell and secondary oocyte? correct answers zygote
The growing offspring is generally referred to as the ___________. correct answers conceptus
When do the extraembryonic membranes first appear? correct answers during the 2nd week of
development
Which part of the embryo contributes to the fetal portion of the placenta? correct answers
trophoblast
Sperm can remain viable in the female's reproductive tract for up to ____________. correct
answers 5 days
Which extraembryonic membrane becomes a part of the urinary bladder? correct answers
allantois
The 16-cell stage is known as the __________. correct answers morula
What process makes a sperm fully motile and modifies its plasma membrane so it can fuse with
an oocyte? correct answers capacitation
What must the sperm penetrate first to reach the secondary oocyte? correct answers corona
radiata
What term refers to a conceptus implanting and growing in any location other than the
endometrium of the uterus? correct answers ectopic pregnancy
Which of the following factors promotes a sperm's ability to fertilize an egg? correct answers
high estrogen levels in a woman promote sperm motility
, What is the degeneration of tissues and organs in adulthood called? correct answers senescence
Which extraembryonic membrane forms the embryonic part of the placenta? correct answers
chorion
The fusion of a sperm cell and secondary oocyte is known as __________. correct answers
fertilization
The conceptus forms rudimentary organ systems during the ________. correct answers
embryonic period
Which of the following periods is not categorized as prenatal? correct answers infancy
What prevents polyspermy from occurring? correct answers cortical reaction
Which of the following functions is not associated with amniotic fluid? correct answers provides
nutrition for the developing embryo
What hormone is detected in a pregnancy test? correct answers human chorionic gonadotropin
(hCG)
What hormone suppresses menstruation during pregnancy? correct answers progesterone
In humans, from which extraembryonic membrane will the first blood cells arise? correct
answers yolk sac
What stimulates the cortical reaction? correct answers sperm entry
Which of the following hormones is not produced by the placenta? correct answers oxytocin
During organogenesis exposure to which of the following substances can cause severe birth
defects or even death? correct answers teratogens
What is the first major event of organogenesis? correct answers neurulation
By what week of prenatal development will the placenta be established? correct answers week 12
During which month of prenatal development will the fetus begin to form blood cells in bone
marrow? correct answers months 8-9
Which of the following structures is a remnant of fetal circulation that is present after birth?
correct answers ligamentum teres
What connects the placenta to the fetus? correct answers umbilical cord
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