Human Embryology Question Bank
Course Introduction
Human Embryology explores the process of human development from fertilization through the embryonic and early fetal stages. The course covers topics such as gametogenesis, fertilization, cleavage, gastrulation, organogenesis, and the formation of major body systems. Students will examine the molecular, genetic, and morphological events that guide normal and abnormal development, as well as investigate common congenital anomalies. Emphasis is placed on the clinical relevance of embryological concepts, their implications for human health, and their importance in fields such as medicine, dentistry, and the biomedical sciences.
Recommended Textbook
The Developing Human Clinically Oriented Embryology 10th Edition by Keith L. Moore
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17 Chapters
415 Verified Questions
415 Flashcards
Source URL: https://quizplus.com/study-set/3233 Page 2
Chapter 1: Gametogenesis and Fertilization
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24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/64060
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/64061
Sample Questions
Q1) ________ 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
Q2) ________ Develops from a ruptured ovarian follicle
A)Corpus luteum
B)Zona pellucida
C)Prechordal plate
D)Ectopic implantation
E)Chorionic sac
Answer: A
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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/64062
Sample Questions
Q1) ________ Source of mesenchyme
A)Allantois
B)Primitive streak
C)Notochord
D)Blood island
E)Neural plate
Answer: B
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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5
Chapter 4: Organogenetic Period: the Fourth to Eighth Weeks
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24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/64063
Sample Questions
Q1) ________ Primordial mouth
A)Limb bud
B)Neuropore
C)Septum transversum
D)Cervical sinus
E)Stomodeum
Q2) ________ Forms the major part of the diaphragm
A)Limb bud
B)Neuropore
C)Septum transversum
D)Cervical sinus
E)Stomodeum
Q3) ________ Outgrowth of the ventrolateral body wall
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/64064
Sample Questions
Q1) ________ Quickening usually occurs
A)12 weeks
B)16 weeks
C)20 weeks
D)25 weeks
E)29 weeks
Q2) ________ Skeleton first shows clearly on radiographs and sonograms
A)12 weeks
B)16 weeks
C)20 weeks
D)25 weeks
E)29 weeks
Q3) ________ Brown fat begins to form
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/64065
Sample Questions
Q1) ________ Nuclear aggregation
A)Separate placentas and membranes
B)Fibrinoid material
C)Amniochorionic membrane
D)Monochorionic placenta
E)Syncytial knot
Q2) ________ Fetal surface of placenta
A)Anchoring villi
B)Cytotrophoblast
C)Amnion
D)Battledore placenta
E)Cotyledons
Q3) ________ Forms part of early placental membrane
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/64066
Sample Questions
Q1) ________ Webbed neck and short stature
A)47, XXX
B)45, XO
C)Trisomy 18
D)Trisomy 21
E)47, XXY
Q2) ________ Strong association with late maternal age
A)47, XXX
B)45, XO
C)Trisomy 18
D)Trisomy 21
E)47, XXY
Q3) ________ Potent teratogen that affects limb development
A)Cytomegalovirus
B)Androgenic agents
C)Thalidomide
D)Toxoplasma gondii
E)Aminopterin
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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/64067
Sample Questions
Q1) ________ Muscular origins of the diaphragm
A)Esophageal mesentery
B)Pleuropericardial membrane
C)Phrenic nerves
D)Crura of the diaphragm
E)Embryonic mediastinum
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/64068
Sample Questions
Q1) ________ Glossopharyngeal nerve
A)First pharyngeal arch
B)Second pharyngeal arch
C)Third pharyngeal arch
D)Fourth pharyngeal arch
E)Sixth pharyngeal arch
Q2) ________ Muscles of facial expression
A)First pharyngeal arch
B)Second pharyngeal arch
C)Third pharyngeal arch
D)Fourth pharyngeal arch
E)Sixth pharyngeal arch
Q3) ________ Thymus
A)First pharyngeal pouch
B)Second pharyngeal pouch
C)Third pharyngeal pouch
D)Fourth pharyngeal pouch
E)Fifth pharyngeal pouch
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11
Chapter 10: Digestive System
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/64069
Sample Questions
Q1) ________ Organ derived solely from mesenchyme
A)Spleen
B)Omphaloenteric duct (yolk stalk)
C)Gallbladder
D)Appendix
E)Celiac trunk
Q2) ________ Causes projectile vomiting
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/64070
Sample Questions
Q1) ________ Navicular fossa
A)Urogenital folds
B)Rete testis
C)Glandular plate
D)Genital tubercle
E)External oblique aponeurosis
Q2) ________ Differentiates after birth
A)Adrenal hyperplasia
B)Penile hypospadias
C)Zona reticularis
D)Neuroectoderm
E)Coelomic epithelium
Q3) ________ Unfused urogenital folds
A)Adrenal hyperplasia
B)Penile hypospadias
C)Zona reticularis
D)Neuroectoderm
E)Coelomic epithelium
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13
Chapter 12: Cardiovascular System
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29 Verified Questions
29 Flashcards
Source URL: https://quizplus.com/quiz/64071
Sample Questions
Q1) ________ Right recurrent laryngeal nerve
A)Ductus arteriosus
B)Septum primum
C)Sixth pharyngeal arch artery
D)Sinus venosus
E)Umbilical vein
Q2) ________ Carries poorly oxygenated blood into the right atrium
A)Ductus arteriosus
B)Septum primum
C)Sixth pharyngeal arch artery
D)Sinus venosus
E)Umbilical vein
Q3) ________ Floor of the oval fossa
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/64072
Sample Questions
Q1) ________ Primary ossification center
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) ________ Closes during the second year
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/64073
Sample Questions
Q1) ________ Limb muscles
A)Upper limb
B)Apical ectodermal ridge
C)Somites
D)Meromelia
E)Lower limb
Q2) ________ Lower limb bud
A)Dermatome
B)Phocomelia
C)Digital rays
D)End of fourth week
E)Amelia
Q3) ________ Absence of the limbs
A)Dermatome
B)Phocomelia
C)Digital rays
D)End of fourth week
E)Amelia
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Page 16
Chapter 15: Nervous System
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30 Verified Questions
30 Flashcards
Source URL: https://quizplus.com/quiz/64074
Sample Questions
Q1) ________ Cerebellum
A)Telencephalon
B)Diencephalon
C)Mesencephalon
D)Metencephalon
E)Myelencephalon
Q2) ________ Neuroglia
A)Neural crest cells
B)Alar plates
C)Basal plates
D)Neuroepithelium
E)Spinal ganglion cells
Q3) ________ Gracile nuclei
A)Neural crest cells
B)Alar plates
C)Basal plates
D)Neuroepithelium
E)Spinal ganglion cells
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Chapter 16: Eye and Ear
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/64075
Sample Questions
Q1) ________ Congenital glaucoma
A)Scleral venous sinus
B)Optic nerve
C)Corneal epithelium
D)Central artery of retina
E)Pupillary membrane
Q2) ________ Has same origin as the cornea
A)Conjunctival epithelium
B)Neuroectoderm
C)First pharyngeal pouch
D)First pharyngeal groove
E)Mesenchyme
Q3) ________ Ganglion cells of retina
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/64076
Sample Questions
Q1) ________ Periodontal ligament
A)Dental pulp
B)Predentin
C)Dental sac
D)Enamel
E)Cement
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) ________ Derived from the inner enamel epithelium
A)Tetracyclines
B)Ameloblastic layer
C)Hair follicles
D)Neural crest cells
E)Epithelial root sheath of the developing tooth
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