Syncytiotrophoblast Samenvattingen, Aantekeningen en Examens
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Developing Human Clinically Embryology 9th Edition Moore Persaud - Test Bank
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Moore: The Developing Human, 9th Edition 
 
Chapter 01: Gametogenesis and Fertilization 
 
Test Bank 
 
MULTIPLE CHOICE 
 
Directions: Each group of questions below consists of a numbered list of descriptive words or phrases accompanied by a diagram with certain parts indicated by letters or by a list of lettered headings. For each numbered word or phrase, select the lettered part or heading that matches it correctly and then insert the letter in the space to the right of the appropriate number....
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Embryology Practice Questions with Answers
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1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: 
 
A. capacitor 
B. head 
C. corona 
D. acrosome 
E. cumulus 
D. is correct. 
The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes and penetrates the oocyte. 
 
 
 
2. The ovulated mammalian oocyte is arre...
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ARDMS OB/GYN Board Exam 2023 with 100% correct answers
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Human Chorionic Gonadotropin - correct answer hCG is a glycoprotein secreted by the syncytiotrophoblast cells of the trophoblast; during the first trimester of pregnancy, the serum beta hCG normally doubles every 48 hours (2 days). In the presence of an ectopic pregnancy, approximately 80% of serum beta hCG has abnormal doubling beta (low doubling time, remain the same, or decrease slightly). A constant decreasing serial quantitative serum beta hCG in the first trimester is indicative of an abn...
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Embryology Practice Questions with Answers
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Embryology Practice Questions with Answers 
 
1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: 
 
A. capacitor 
B. head 
C. corona 
D. acrosome 
E. cumulus - D. is correct. 
The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes and penetrates the oocyte....
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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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First Aid USMLE Step 1- Reproductive Organ Systems + Embryology
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First Aid USMLE Step 1- Reproductive 
Organ Systems + Embryology 
2023 Update 
Sonic Hedgehog Gene - ANS-Produced @ base of limbs in zone of polarizing activity 
Involved in patterning along anterior/posterior axis 
*SUMMARY: Anterior/posterior pattern* 
Wnt-7 Gene - ANS-Produced @ apical ectodermal ridge (thickened ectoderm @ distal 
end of each developing limb) 
Necessary for organization along dorsal/ventral axis 
*SUMMARY: Dorsal/ventral pattern* 
FGF Gene - ANS-Produced @ apical ectoderma...
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NMSK E2 - Lippincott's Embryology Questions with 100% correct answers already graded a+ 2024
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A 43-year-old pregnant woman at 16 weeks of gestation 
comes to her OB/GYN for a normal examination. During routine blood tests, her serum a-fetoprotein (AFP) concentration is markedly decreased for her gestational age. Which abnormality or condition will the physician need to rule out based upon these low AFP levels? 
(A) Down syndrome 
(B) Spina bifi da 
(C) Anencephaly 
(D) Multifetal pregnancy 
(E) Hepatocellular carcinoma 
(A) Down syndrome 
 
 
 
A 32-year-old pregnant woman at 30 weeks of...
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ABCP BOARD REVIEW QUESTIONS & ANSWER SOLVED 100%
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What good substances cross the placental membrane? - Answer O2, CO2, H2O, bilirubin, maternal serum proteins, RBc, IgG, IgA 
 
What harmful substances cross the placental membrane? - Answer 1) viruses: rubella, HIV, measles, oral conraception, WARFARIN, DILANTIN, Xanax, cocaine, heroin, RH-antibodies 
 
What does not cross the placental membrane? - Answer maternal chplesterol, Insulin, Succinylcholine, HEPARIN, bacteria 
 
Which vessel supplies blood to the fetus? - Answer umbilical vein 
 
Whic...
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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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Embryology Exam | Actual Questions with Answers| updated 2023/24
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Embryology Exam | Actual Questions with Answers| updated 2023/24 
 
1. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the: 
 
A. capacitor 
B. head 
C. corona 
D. acrosome 
E. cumulus - D. is correct. 
The acrosome is the part of the sperm containing proteolytic enzymes to digest the zona pellucida. It is exposed by the process of capacitation. Then, under the influence of substances released by corona radiata cells, it releases its proteolytic enzymes a...