Prenatal Development Study Guide Questions
Course Introduction
Prenatal Development is a comprehensive course that explores the biological, psychological, and environmental factors influencing human growth from conception to birth. Students examine the stages of prenatal development germinal, embryonic, and fetal periods focusing on genetic inheritance, cellular processes, organ formation, and critical periods of vulnerability. The course investigates how maternal health, nutrition, stress, and exposure to teratogens impact fetal development. Discussions also include current research in prenatal screening, medical interventions, and the implications of premature birth, providing students with an in-depth understanding of how early experiences shape later health and development.
Recommended Textbook
Human Embryology and Developmental Biology 5th Edition by Bruce M. Carlson
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18 Chapters
301 Verified Questions
301 Flashcards
Source URL: https://quizplus.com/study-set/1308 Page 2
Chapter 1: Getting Ready for Pregnancy
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10 Verified Questions
10 Flashcards
Source URL: https://quizplus.com/quiz/26053
Sample Questions
Q1) What is a major function of protamines in spermatogenesis?
A)They prevent autoimmune reactions against the spermatozoa.
B)They are instrumental in the formation of the acrosome.
C)They are associated with the membrane receptors for luteinizing hormone on the primary spermatocyte.
D)They displace nuclear histones and allow compaction of the nuclear chromatin.
E)They coat the maturing spermatozoa in the epididymis.
Answer: D
Q2) The first meiotic block in the human female gamete occurs in the ____________.
A)Zygotene stage
B)Diplotene stage
C)Diakinesis stage
D)Metaphase I stage
E)Metaphase II stage
Answer: B
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Chapter 2: Transport of Gametes and Fertilization
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19 Verified Questions
19 Flashcards
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Sample Questions
Q1) Of the barriers to sperm survival and transport within the female reproductive tract,low pH is most important in the ___________.
A)Upper uterine tube
B)Lower uterine tube
C)Uterine cavity
D)Cervix
E)Vagina
Answer: E
Q2) In the slow block to polyspermy,what most directly stimulates the cortical granules to release their contents into the perivitelline space?
A)Ca
B)Protamines
C)Na
D)ZP
E)Hyaluronidase
Answer: A
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Chapter 3: Cleavage and Implantation
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18 Flashcards
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Sample Questions
Q1) What is the correct cell lineage leading to the formation of the syncytiotrophoblast?
A)Blastomere - inner cell mass - hypoblast - trophoblast - syncytiotrophoblast
B)Inner cell mass - epiblast - cytotrophoblast - syncytiotrophoblast
C)Blastomere - trophoblast - cytotrophoblast - syncytiotrophoblast
D)Blastomere - inner cell mass - epiblast - trophoblast - syncytiotrophoblast
E)Blastomere - epiblast - trophoblast - syncytiotrophoblast
Answer: C
Q2) When the cleaving embryo implants in the uterine lining,which tissue makes direct contact with the maternal tissues?
A)Inner cell mass
B)Zona pellucida
C)Hypoblast
D)Extraembryonic mesoderm
E)None of the above
Answer: E
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Chapter 4: Molecular Basis for Embryonic Development
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9 Verified Questions
9 Flashcards
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Sample Questions
Q1) Which growth factor must be combined with cholesterol to be active?
A)Sonic hedgehog
B)Fibroblast growth factor-2
C)Transforming growth factor-
D)Bone morphogenetic protein-7
E)None of the above
Q2) Which molecule is most heavily involved in the process of lateral inhibition?
A)Sonic hedgehog
B)Sox-9
C)Notch
D)Transforming growth factor-
E)None of the above
Q3) -Catenin is an integral part of which signaling/signal transduction pathway?
A)Fibroblast growth factor/receptor tyrosine kinase
B)Wnt
C)Delta-Notch
D)Transforming growth factor/serine-threonine kinase
E)None of the above
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Chapter 5: Formation of Germ Layers and Early Derivatives
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16 Verified Questions
16 Flashcards
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Sample Questions
Q1) Which cell adhesion molecule(s)rely(ies)heavily on Ca++ for its function?
A)N-CAM
B)E-cadherin
C)Integrin
D)All of the above
E)None of the above
Q2) Precursor cells of which of the following embryonic tissues pass through the primitive streak?
A)Cytotrophoblast
B)Neural crest
C)Yolk sac endoderm
D)Amniotic ectoderm
E)None of the above
Q3) The absence of which molecule results in an embryo missing the anterior part of the head?
A)Retinoic acid
B)Lim-1
C)Bone morphogenetic protein-4
D)Chordin
E)None of the above
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Chapter 6: Establishment of the Basic Embryonic Body Plan
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28 Verified Questions
28 Flashcards
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Sample Questions
Q1) Blood islands form from the _______________.
A)Splanchnic mesoderm of the yolk sac
B)Endocardial tube
C)Yolk sac endoderm
D)Splanchnic mesoderm of the foregut
E)Cardiogenic mesoderm
Q2) The "clock and wavefront" model refers to the formation of _________________.
A)Neural tube
B)Heart
C)Digestive tube
D)Somites
E)None of the above
Q3) Splanchnic mesoderm acts as an inducer of all of the tissues or organs below except:
A)Teeth
B)Trachea
C)Liver
D)Lungs
E)Pancreas
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Page 8
Chapter 7: Placenta and Extraembryonic Membranes
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12 Verified Questions
12 Flashcards
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Sample Questions
Q1) Which of the following associations is correct?
A)Hydatidiform mole - maternal imprinting
B)Secondary villus - blood vessels
C)Hydramnios - bilateral renal agenesis
D)Yolk sac - blood islands
E)Oligohydramnios - anencephaly
Q2) Which of the following is(are)derived from embryonic cells?
A)Decidua basalis
B)Decidua capsularis
C)Decidua parietalis
D)All of the above
E)None of the above
Q3) Which malformation can lead to polyhydramnios?
A)Meckel's diverticulum
B)Esophageal atresia
C)Persistent anal membrane
D)Omphalocele
E)Aganglionic megacolon
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Chapter 8: Developmental Disorders: Causes, mechanisms, and Patterns
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11 Flashcards
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Sample Questions
Q1) Which of the following pairs is correctly matched?
A)Unilateral renal agenesis - failure of migration
B)Tracheoesophageal fistula with esophageal atresia - failure of induction
C)Annular pancreas - failure of induction
D)Pelvic kidney - failure of migration
E)Duplication of ureter - failure of resorption
Q2) Which of the following is responsible for the largest percentage of congenital malformations?
A)Maternal infections
B)Chemical teratogens
C)Genetically based conditions
D)Ionizing radiations
E)Unknown factors
Q3) What percentage of congenital malformations is due to unknown causes?
A)5%
B)10%
C)25%
D)50%
E)75%
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Chapter 9: Integumentary, skeletal, and Muscular Systems
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9 Verified Questions
9 Flashcards
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Sample Questions
Q1) Which molecular marker characterizes myoblasts migrating into the limb buds from the somites?
A)Hoxd-1
B)Pax-3
C)Sonic hedgehog
D)Hoxa-3
E)Transforming growth factor-
Q2) How many nuclei would you expect to find in a myoblast?
A)1
B)2
C)4
D)8
E)None of the above
Q3) Which molecule steers mesenchymal cells toward an osteogenic program?
A)Sox-9
B)Sonic hedgehog
C)Runx-2
D)All of the above
E)None of the above
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Chapter 10: Limb Development
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) Syndactyly is due to abnormal patterns of _______________.
A)Cell death
B)Hox gene expression
C)Sonic hedgehog signaling
D)Myoblast migration from the somites
E)Fibroblast growth factors-2, -4, and -8 signaling from the apical ectodermal ridge
Q2) Which anomaly is due to the absence of programmed cell death?
A)Triphalangeal thumb
B)Phocomelia
C)Polydactyly
D)Syndactyly
E)Diplopodia
Q3) The skeletal musculature of the limb arises from the _________________.
A)Somatopleure of the lateral plate mesoderm
B)Neural crest
C)Splanchnopleure of the lateral plate mesoderm
D)Neural tube
E)Somites
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Chapter 11: Nervous System
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15 Verified Questions
15 Flashcards
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Sample Questions
Q1) What molecule produced by the notochord is instrumental in inducing the floor plate of the neural tube?
A)Hoxa-5
B)Retinoic acid
C)Acrosin
D)Hyaluronic acid (haluronin)
E)Sonic hedgehog
Q2) A molecule that repels the advance of a growth cone is called
A)Netrin
B)Acrosin
C)Cadherin
D)Semaphoring
E)Laminin
Q3) ?The alar plate is most closely associated with which function of the central nervous system?
A)Motor
B)Sympathetic
C)Sensory
D)Parasympathetic
E)None of the above
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Chapter 12: Neural Crest
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14 Verified Questions
14 Flashcards
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Sample Questions
Q1) Derivatives of neural crest cells include all of the following except ___________________:
A)Melanocytes
B)Chromaffin cells
C)Sensory neurons
D)Sympathetic neurons
E)Epidermis
Q2) Which of these neural crest derivatives is formed only from cranial neural crest?
A)Melanocytes
B)Sensory ganglion cells
C)Cartilage
D)Satellite cells of sensory ganglia
E)Adrenal medulla
Q3) Which of the following is a derivative of cranial,but not trunk,neural crest?
A)Sensory ganglia
B)Dermis
C)Melanocytes
D)Schwann cells
E)Autonomic ganglia
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Chapter 13: Sense Organs
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) The otic placode is induced by interaction of the surface ectoderm with
A)Prosencephalon
B)Mesencephalon
C)Rhombencephalon
D)Cephalic mesoderm
E)Spiral ganglion
Q2) Coloboma results from _________________.
A)Nonclosure of the choroid fissure of the iris
B)Lack of induction by the lens
C)Lack of induction by the otic vesicle
D)Hypoplasia of the first pharyngeal arch
E)Incomplete migration of fourth pharyngeal pouch endoderm
Q3) The development of corneal transparency by removal of water from the secondary stroma is mediated by ____________.
A)Thyroxine
B)Catecholamines
C)Fibroblast growth factor
D)Nerve growth factor
E)Crystallins
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Chapter 14: Head and Neck
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33 Verified Questions
33 Flashcards
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Sample Questions
Q1) The foramen cecum represents the original location of the primordium of the
A)Thymus
B)Parathyroid glands
C)Thyroid gland
D)Anterior lobe of pituitary gland
E)Posterior lobe of pituitary gland
Q2) The earliest induction in tooth development consists of the ectoderm of the dental epithelium acting on the underlying neural crest mesenchyme.Which of the following molecules is an important mediator of the inductive stimulus?
A)Bone morphogenetic protein-4
B)Sonic hedgehog
C)Hoxb
D)Hoax
E)Pax-6
Q3) Most of the facial muscles arise from the ______________.
A)Neural crest
B)Somites
C)Somitomeres
D)Splanchnic mesoderm
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Chapter 15: Digestive and Respiratory Systems and Body
Cavities
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17 Verified Questions
17 Flashcards
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Sample Questions
Q1) A newborn infant chokes and is unable to retain milk during its first attempt to breast-feed.This is most likely due to (a)____________________.
A)Thyroglossal cyst
B)Duodenal atresia
C)Tracheoesophageal fistula
D)Lateral cervical cyst
E)Pyloric stenosis
Q2) The yolk stalk (duct)is most closely associated with which artery?
A)Celiac artery
B)Umbilical artery
C)Superior mesenteric artery
D)Aorta
E)Inferior mesenteric artery
Q3) Which vessel serves as the pivot point for intestinal rotation?
A)Inferior mesenteric artery
B)Hepatic portal vein
C)Celiac artery
D)Umbilical vein
E)Superior mesenteric artery
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Chapter 16: Urogenital System
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29 Verified Questions
29 Flashcards
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Sample Questions
Q1) The allantois directly attaches to the _____________.
A)Urinary bladder
B)Rectum
C)Anal membrane
D)Perineum
E)None of the above
Q2) The upward path of migration of a horseshoe kidney is blocked by the _____________.
A)Renal arteries
B)Umbilical arteries
C)Inferior mesenteric artery
D)Ureters
E)Allantois
Q3) The urachus of the bladder is derived from the _______________.
A)Urogenital sinus
B)Fused müllerian ducts
C)Cloacal plate
D)Vitelline duct
E)Allantois
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Page 18
Chapter 17: Cardiovascular System
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19 Verified Questions
19 Flashcards
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Sample Questions
Q1) Neural crest-derived cells constitute much of the ________________.
A)Ductus arteriosus
B)Interventricular septum
C)Interatrial septum
D)Truncoconal ridges
E)Conducting system of the heart
Q2) The internal carotid artery arises from aortic arch ________.
A)1
B)2
C)3
D)4
E)6
Q3) Embryonic hematopoiesis takes place in all of the organs except the ______________.
A)Liver
B)Yolk sac
C)Bone marrow
D)Placenta
E)All of the above are correct
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Chapter 18: Fetal Period and Birth
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8 Verified Questions
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Sample Questions
Q1) Which of the maturation processes in the fetus is not affected by fetal cortisol?
A)Storage of glycogen by the liver
B)Stimulation of parturition
C)Stimulation of surfactant synthesis in the lung
D)Shift of the main hematopoietic site to bone marrow
E)All of the above are correct
Q2) Meconium is formed in the fetal __________.
A)Liver
B)Ileum
C)Lungs
D)Amniotic fluid
E)Kidneys
Q3) Respiratory distress syndrome in premature infants is due to ______________.
A)Insufficient development of the pulmonary vasculature
B)Premature closure of the ductus arteriosus
C)Excessive production of pulmonary surfactant
D)Insufficient development of the diaphragm
E)None of the above
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