Teratology Exam Questions
Course Introduction
Teratology is the scientific study of congenital abnormalities and the factors that cause developmental malformations in embryos and fetuses. This course explores the principles underlying normal and abnormal embryonic development, the mechanisms by which genetic, environmental, and pharmacological agents can disrupt development, and the critical periods of susceptibility in gestation. Students will examine the historical context, major teratogens, current research methodologies, risk assessment, and prevention strategies, preparing them to understand the medical, ethical, and societal implications of teratogenic exposure and congenital disorders.
Recommended Textbook Before We Are Born Essentials of Embryology and Birth Defects 8th Edition by Keith
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17 Chapters
415 Verified Questions
415 Flashcards
Source URL: https://quizplus.com/study-set/3226 Page 2
L. Moore
Chapter 1: Gametogenesis and Fertilization
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24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/63905
Sample Questions
Q1) ________ Haploid nuclei that fuse to form a zygote
A)Polar body
B)Capacitation
C)Acrosome
D)Zona pellucida
E)Pronuclei
Answer: E
Q2) ________ Contains enzymes that digest a path for the sperm
A)Polar body
B)Capacitation
C)Acrosome
D)Zona pellucida
E)Pronuclei
Answer: C
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Chapter 2: Formation of Bilaminar Embryonic Disc and Chorionic
Sac
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16 Verified Questions
16 Flashcards
Source URL: https://quizplus.com/quiz/63906
Sample Questions
Q1) ________ Develops from a ruptured ovarian follicle
A)Corpus luteum
B)Zona pellucida
C)Prechordal plate
D)Ectopic implantation
E)Chorionic sac
Answer: A
Q2) ________ Surrounds embryo,amnion,and umbilical vesicle (yolk sac)
A)Corpus luteum
B)Zona pellucida
C)Prechordal plate
D)Ectopic implantation
E)Chorionic sac
Answer: E
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4
Chapter 3: Formation of Germ Layers and Early Tissue and Organ Differentiation
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24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/63907
Sample Questions
Q1) ________ Appears on extraembryonic membranes
A)Allantois
B)Primitive streak
C)Notochord
D)Blood island
E)Neural plate
Answer: D
Q2) ________ Forms the basis of the axial skeleton
A)Allantois
B)Primitive streak
C)Notochord
D)Blood island
E)Neural plate
Answer: C
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Chapter 4: Organogenetic Period: the Fourth to Eighth Weeks
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24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/63908
Sample Questions
Q1) ________ Forms the major part of the diaphragm
A)Limb bud
B)Neuropore
C)Septum transversum
D)Cervical sinus
E)Stomodeum
Q2) ________ Outgrowth of the ventrolateral body wall
A)Limb bud
B)Neuropore
C)Septum transversum
D)Cervical sinus
E)Stomodeum
Q3) ________ Closes during the fourth week
A)Limb bud
B)Neuropore
C)Septum transversum
D)Cervical sinus
E)Stomodeum
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Chapter 5: Fetal Period
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15 Verified Questions
15 Flashcards
Source URL: https://quizplus.com/quiz/63909
Sample Questions
Q1) ________ Stage of initial activity of the fetus
A)12 weeks
B)16 weeks
C)20 weeks
D)25 weeks
E)29 weeks
Q2) ________ Head constitutes about half of the fetus
A)12 weeks
B)16 weeks
C)20 weeks
D)25 weeks
E)29 weeks
Q3) ________ Skeleton first shows clearly on radiographs and sonograms
A)12 weeks
B)16 weeks
C)20 weeks
D)25 weeks
E)29 weeks
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Chapter 6: Placenta and Fetal Membranes
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23 Verified Questions
23 Flashcards
Source URL: https://quizplus.com/quiz/63910
Sample Questions
Q1) ________ Forms on the surfaces of chorionic villi
A)Separate placentas and membranes
B)Fibrinoid material
C)Amniochorionic membrane
D)Monochorionic placenta
E)Syncytial knot
Q2) ________ Nuclear aggregation
A)Separate placentas and membranes
B)Fibrinoid material
C)Amniochorionic membrane
D)Monochorionic placenta
E)Syncytial knot
Q3) ________ Fetal surface of placenta
A)Anchoring villi
B)Cytotrophoblast
C)Amnion
D)Battledore placenta
E)Cotyledons
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Chapter 7: Human Birth Defects
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14 Verified Questions
14 Flashcards
Source URL: https://quizplus.com/quiz/63911
Sample Questions
Q1) ________ Antitumor agent and potent teratogen
A)Cytomegalovirus
B)Androgenic agents
C)Thalidomide
D)Toxoplasma gondii
E)Aminopterin
Q2) ________ Intracellular parasite often found in cats
A)Cytomegalovirus
B)Androgenic agents
C)Thalidomide
D)Toxoplasma gondii
E)Aminopterin
Q3) ________ Mental retardation,simian crease,and heart defect
A)47, XXX
B)45, XO
C)Trisomy 18
D)Trisomy 21
E)47, XXY
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Chapter 8: Body Cavities, mesenteries, and Diaphragm
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/63912
Sample Questions
Q1) ________ Diaphragmatic muscles
A)Costodiaphragmatic recess
B)Cervical myotomes
C)Congenital hiatal hernia
D)Pleuroperitoneal membrane
E)Pericardioperitoneal canal
Q2) ________ Herniation of the abdominal viscera
A)Costodiaphragmatic recess
B)Cervical myotomes
C)Congenital hiatal hernia
D)Pleuroperitoneal membrane
E)Pericardioperitoneal canal
Q3) ________ Connects the pericardial and peritoneal cavities
A)Costodiaphragmatic recess
B)Cervical myotomes
C)Congenital hiatal hernia
D)Pleuroperitoneal membrane
E)Pericardioperitoneal canal
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Chapter 9: Pharyngeal Apparatus
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36 Verified Questions
36 Flashcards
Source URL: https://quizplus.com/quiz/63913
Sample Questions
Q1) ________ Thymus
A)First pharyngeal pouch
B)Second pharyngeal pouch
C)Third pharyngeal pouch
D)Fourth pharyngeal pouch
E)Fifth pharyngeal pouch
Q2) ________ Superior parathyroid gland
A)First pharyngeal pouch
B)Second pharyngeal pouch
C)Third pharyngeal pouch
D)Fourth pharyngeal pouch
E)Fifth pharyngeal pouch
Q3) ________ Mandibular cartilage
A)First pharyngeal arch
B)Second pharyngeal arch
C)Third pharyngeal arch
D)Fourth pharyngeal arch
E)Sixth pharyngeal arch
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11
Chapter 10: Digestive System
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/63914
Sample Questions
Q1) ________ Duodenal obstruction
A)Pyloric stenosis
B)Anorectal agenesis
C)Esophageal atresia
D)Omphalocele
E)Polyhydramnios
Q2) ________ Herniation of the intestines
A)Pyloric stenosis
B)Anorectal agenesis
C)Esophageal atresia
D)Omphalocele
E)Polyhydramnios
Q3) ________ Derived from the midgut loop
A)Spleen
B)Omphaloenteric duct (yolk stalk)
C)Gallbladder
D)Appendix
E)Celiac trunk
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12
Chapter 11: Urogenital System
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46 Verified Questions
46 Flashcards
Source URL: https://quizplus.com/quiz/63915
Sample Questions
Q1) ________ Ambiguous external genitalia
A)Adrenal hyperplasia
B)Penile hypospadias
C)Zona reticularis
D)Neuroectoderm
E)Coelomic epithelium
Q2) ________ Unfused urogenital folds
A)Adrenal hyperplasia
B)Penile hypospadias
C)Zona reticularis
D)Neuroectoderm
E)Coelomic epithelium
Q3) ________ Navicular fossa
A)Urogenital folds
B)Rete testis
C)Glandular plate
D)Genital tubercle
E)External oblique aponeurosis
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13
Chapter 12: Cardiovascular System
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29 Verified Questions
29 Flashcards
Source URL: https://quizplus.com/quiz/63916
Sample Questions
Q1) ________ Constriction of aorta
A)Ductus arteriosus
B)Septum primum
C)Sixth pharyngeal arch artery
D)Sinus venosus
E)Umbilical vein
Q2) ________ Most common cardiac defect
A)Ductus arteriosus
B)Septum primum
C)Sixth pharyngeal arch artery
D)Sinus venosus
E)Umbilical vein
Q3) ________ Rubella syndrome
A)Ductus arteriosus
B)Septum primum
C)Sixth pharyngeal arch artery
D)Sinus venosus
E)Umbilical vein
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14
Chapter 13: Skeletal and Muscular Systems
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23 Verified Questions
23 Flashcards
Source URL: https://quizplus.com/quiz/63917
Sample Questions
Q1) ________ Growth of long bones
A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium
Q2) ________ Partly within the pharyngeal arches
A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium
Q3) ________ Styloid process
A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium
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15
Chapter 14: Limbs
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10 Verified Questions
10 Flashcards
Source URL: https://quizplus.com/quiz/63918
Sample Questions
Q1) ________ Condensations of mesenchyme
A)Dermatome
B)Phocomelia
C)Digital rays
D)End of fourth week
E)Amelia
Q2) ________ Rotates laterally
A)Upper limb
B)Apical ectodermal ridge
C)Somites
D)Meromelia
E)Lower limb
Q3) ________ Partial absence of a limb
A)Upper limb
B)Apical ectodermal ridge
C)Somites
D)Meromelia
E)Lower limb
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Chapter 15: Nervous System
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30 Verified Questions
30 Flashcards
Source URL: https://quizplus.com/quiz/63919
Sample Questions
Q1) ________ Form ventral gray columns
A)Neural crest cells
B)Alar plates
C)Basal plates
D)Neuroepithelium
E)Spinal ganglion cells
Q2) ________ Olivary nuclei
A)Telencephalon
B)Diencephalon
C)Mesencephalon
D)Metencephalon
E)Myelencephalon
Q3) ________ Pons
A)Telencephalon
B)Diencephalon
C)Mesencephalon
D)Metencephalon
E)Myelencephalon
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Chapter 16: Eye and Ear
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/63920
Sample Questions
Q1) ________ External acoustic meatus
A)Conjunctival epithelium
B)Neuroectoderm
C)First pharyngeal pouch
D)First pharyngeal groove
E)Mesenchyme
Q2) ________ Mastoid cells
A)Conjunctival epithelium
B)Neuroectoderm
C)First pharyngeal pouch
D)First pharyngeal groove
E)Mesenchyme
Q3) ________ Hyaloid artery
A)Scleral venous sinus
B)Optic nerve
C)Corneal epithelium
D)Central artery of retina
E)Pupillary membrane
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18
Chapter 17: Integumentary System
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/63921
Sample Questions
Q1) ________ Discoloration of teeth
A)Tetracyclines
B)Ameloblastic layer
C)Hair follicles
D)Neural crest cells
E)Epithelial root sheath of the developing tooth
Q2) ________ Induction of the odontoblastic layer
A)Tetracyclines
B)Ameloblastic layer
C)Hair follicles
D)Neural crest cells
E)Epithelial root sheath of the developing tooth
Q3) ________ Fused layers of enamel epithelia
A)Tetracyclines
B)Ameloblastic layer
C)Hair follicles
D)Neural crest cells
E)Epithelial root sheath of the developing tooth
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