Embryon Study guides, Class notes & Summaries
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Embryology Embryonic Folding test with 100% correct answers
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Embryonic folding 
By the end of the fourth week of development, the embryo has already begun to take human form. It is nearly completely lined on the outside with ectoderm. Inside, the neural tube is 
continuing to develop within the dorsal mesenchyme. Adjacent to the neural tube, somites are forming in a segmental fashion. Lateral to this, intermediate mesoderm is beginning to form structures of the urogenital system and gonads. The lateral plate mesoderm had split into 
splanchnopleuric and s...
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EMBRYOLOGY - CH.3 - STAGES OF EMBRYONIC DEVELOPMENT TEST QUESTIONS AND ANSWERS 2024
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what is the first phase of development of the zygote? 
cleavage (segmentation) 
 
 
 
what happens during cleavage? (general) 
passage from the unicellular condition to the multicellular condition after several mitotic divisions 
 
 
 
true or false : cleavage is highly conserved among species 
TRUE 
 
 
 
how is cleavage initiated? 
by the division of the nucleus which is followed by the division of the cytoplasm 
 
 
 
the daughter cells resulting from cleavage are called 
blastomeres 
 
 
 
i...
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NARM Practice: Embryonic and Fetal Development Study Guide
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24-28 weeks from conception (26-30 weeks from LMP) CORRECT ANSWER Legally "viable," eyelids open, and respiratory movements are present 
 
28-32 weeks from conception (30-34 weeks from LMP) CORRECT ANSWER Fetus begins to store fat and iron. Lanugo disappears from face. Testes descend into scrotum. Skin becomes less wrinkled. 
 
32-36 weeks from conception (34-38 weeks gestation) CORRECT ANSWER Increased fat, lanugo disappears from body, plantar creases visible, ear cartilage soft, weight gain ...
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Early Embryonic Development Questions and answers latest update
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Early Embryonic Development Questions and answers latest update
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Chapter 27 Reproduction and Embryonic Development Campbell Biology
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Chapter 27 Reproduction and Embryonic Development Campbell Biology
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EMBRYONIC DEVELOPMENT TEST QUESTIONS WITH VERIFIED SOLUTIONS
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fertilization 
The union of haploid gametes to produce a diploid zygote. 
 
 
 
zygote 
diploid cell formed when the nucleus of a haploid sperm cell fuses with the nucleus of a haploid egg cell 
 
 
 
 
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cleavage 
the first stage in embryonic development; increase in cell number but not in size of embryo 
 
 
 
blastomeres 
Any of the cells resulting from the cleavage of a ...
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NARM PRACTICE: EMBRYONIC AND FETAL DEVELOPMENT QUESTIONS A| LATEST UPDATES 2024/25 APPROVED| ND ANSWERS, GRADED A+
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NARM PRACTICE: EMBRYONIC AND FETAL DEVELOPMENT 
QUESTIONS AND ANSWERS, GRADED A+ 
24-28 weeks from conception (26-30 weeks from LMP) - -Legally "viable," eyelids open, and 
respiratory movements are present 
28-32 weeks from conception (30-34 weeks from LMP) - -Fetus begins to store fat and iron. Lanugo 
disappears from face. Testes descend into scrotum. Skin becomes less wrinkled. 
32-36 weeks from conception (34-38 weeks gestation) - -Increased fat, lanugo disappears from 
body, plantar c...
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Early Embryonic Developmen Questions and answers latest update
- Exam (elaborations) • 9 pages • 2024
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Early Embryonic Developmen Questions and answers latest update
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Embryonic And Fetal Development test questions with verified solutions
- Exam (elaborations) • 3 pages • 2024
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Determine the passageway for the sperm to go through when deposited?Start-->Finish 
Vagina-->Cervix-->uterus-->oviducts 
 
 
 
What does the Females ovaries need to perform in order for the sperm to fuse with the egg? 
Ovulation which is when the ovaries releases the egg into the oviduct. 
 
 
 
 
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What is the term used for the fusing of the egg and sperm cell? 
Fertilization which is when the egg and sperm cell fuses. 
 
 
 
Where in the females reproductive sy...
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NARM Practice Embryonic and Fetal Developmen Questions and answers latest update
- Exam (elaborations) • 7 pages • 2024
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NARM Practice Embryonic and Fetal Developmen Questions and answers latest update
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