Human Embryology
Final Test Solutions
Course Introduction
Human Embryology is an in-depth exploration of the processes governing human development from the moment of fertilization through to fetal growth. The course covers the cellular and molecular mechanisms of early development, formation of the major organ systems, and the critical periods of differentiation and morphogenesis. Students will learn about normal development as well as common congenital anomalies, examining the genetic and environmental factors that influence embryogenesis. Emphasis is placed on clinical correlations and the relevance of embryological knowledge to medical practice and biomedical research.
Recommended Textbook Before We Are Born Essentials of Embryology and Birth Defects 8th Edition by Keith L. Moore
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17 Chapters
415 Verified Questions
415 Flashcards
Source URL: https://quizplus.com/study-set/3226 Page 2
Chapter 1: Gametogenesis and Fertilization
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24 Verified Questions
24 Flashcards
Source URL: https://quizplus.com/quiz/63905
Sample Questions
Q1) ________ Changes occur in it that inhibit entry of sperm
A)Polar body
B)Capacitation
C)Acrosome
D)Zona pellucida
E)Pronuclei
Answer: D
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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Page 3
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 as a localized thickening of hypoblast
A)Corpus luteum
B)Zona pellucida
C)Prechordal plate
D)Ectopic implantation
E)Chorionic sac
Answer: C
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/63907
Sample Questions
Q1) ________ Forms the basis of the axial skeleton
A)Allantois
B)Primitive streak
C)Notochord
D)Blood island
E)Neural plate
Answer: C
Q2) ________ Source of mesenchyme
A)Allantois
B)Primitive streak
C)Notochord
D)Blood island
E)Neural plate
Answer: B
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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) ________ Primordial mouth
A)Limb bud
B)Neuropore
C)Septum transversum
D)Cervical sinus
E)Stomodeum
Q2) ________ Ectodermal depression in the neck
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/63909
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) ________ Sex is first distinguishable externally
A)12 weeks
B)16 weeks
C)20 weeks
D)25 weeks
E)29 weeks
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Page 7
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) ________ Extends into cervical canal during labor
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) ________ Occurs only in monozygotic twins
A)Separate placentas and membranes
B)Fibrinoid material
C)Amniochorionic membrane
D)Monochorionic placenta
E)Syncytial knot
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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) ________ Normal female appearance and usually fertile
A)47, XXX
B)45, XO
C)Trisomy 18
D)Trisomy 21
E)47, XXY
Q2) ________ Intracellular parasite often found in cats
A)Cytomegalovirus
B)Androgenic agents
C)Thalidomide
D)Toxoplasma gondii
E)Aminopterin
Q3) ________ Webbed neck and short stature
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) ________ Forms median part of the diaphragm
A)Esophageal mesentery
B)Pleuropericardial membrane
C)Phrenic nerves
D)Crura of the diaphragm
E)Embryonic mediastinum
Q2) ________ Connects the pericardial and peritoneal cavities
A)Costodiaphragmatic recess
B)Cervical myotomes
C)Congenital hiatal hernia
D)Pleuroperitoneal membrane
E)Pericardioperitoneal canal
Q3) ________ Diaphragmatic muscles
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) ________ Stylohyoid ligament
A)First pharyngeal arch
B)Second pharyngeal arch
C)Third pharyngeal arch
D)Fourth pharyngeal arch
E)Sixth pharyngeal arch
Q2) ________ Supplied by the vagus nerve (CN X)
A)First pharyngeal arch
B)Second pharyngeal arch
C)Third pharyngeal arch
D)Fourth pharyngeal arch
E)Sixth pharyngeal arch
Q3) ________ Muscles of facial expression
A)First pharyngeal arch
B)Second pharyngeal arch
C)Third pharyngeal arch
D)Fourth pharyngeal arch
E)Sixth pharyngeal arch
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Chapter 10: Digestive System
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20 Verified Questions
20 Flashcards
Source URL: https://quizplus.com/quiz/63914
Sample Questions
Q1) ________ Herniation of the intestines
A)Pyloric stenosis
B)Anorectal agenesis
C)Esophageal atresia
D)Omphalocele
E)Polyhydramnios
Q2) ________ Continuous with the apex of the midgut loop
A)Spleen
B)Omphaloenteric duct (yolk stalk)
C)Gallbladder
D)Appendix
E)Celiac trunk
Q3) ________ Faulty partitioning of the cloaca
A)Pyloric stenosis
B)Anorectal agenesis
C)Esophageal atresia
D)Omphalocele
E)Polyhydramnios
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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) ________ External spermatic fascia
A)Urogenital folds
B)Rete testis
C)Glandular plate
D)Genital tubercle
E)External oblique aponeurosis
Q2) ________ Mesonephric duct
A)Renal agenesis
B)Nephrogenic cord
C)Metanephric diverticulum
D)Kidney lobes
E)Polycystic kidney
Q3) ________ Caused by dilations of the nephron loops
A)Renal agenesis
B)Nephrogenic cord
C)Metanephric diverticulum
D)Kidney lobes
E)Polycystic kidney
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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) ________ Most common cardiac defect
A)Ductus arteriosus
B)Septum primum
C)Sixth pharyngeal arch artery
D)Sinus venosus
E)Umbilical vein
Q2) ________ Constriction of aorta
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) ________ Primary ossification center
A)Centrum
B)Epiphysial plate
C)Frontal bone
D)Anterior fontanelle
E)Cartilaginous viscerocranium
Q2) ________ Styloid process
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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Chapter 14: Limbs
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10 Verified Questions
10 Flashcards
Source URL: https://quizplus.com/quiz/63918
Sample Questions
Q1) ________ Type of meromelia
A)Dermatome
B)Phocomelia
C)Digital rays
D)End of fourth week
E)Amelia
Q2) ________ Absence of the limbs
A)Dermatome
B)Phocomelia
C)Digital rays
D)End of fourth week
E)Amelia
Q3) ________ Rotates medially
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) ________ Neuroglia
A)Neural crest cells
B)Alar plates
C)Basal plates
D)Neuroepithelium
E)Spinal ganglion cells
Q2) ________ Thalamus
A)Telencephalon
B)Diencephalon
C)Mesencephalon
D)Metencephalon
E)Myelencephalon
Q3) ________ Corpus striatum
A)Telencephalon
B)Diencephalon
C)Mesencephalon
D)Metencephalon
E)Myelencephalon
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17
Chapter 16: Eye and Ear
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41 Verified Questions
41 Flashcards
Source URL: https://quizplus.com/quiz/63920
Sample Questions
Q1) ________ Ganglion cells of retina
A)Scleral venous sinus
B)Optic nerve
C)Corneal epithelium
D)Central artery of retina
E)Pupillary membrane
Q2) ________ Neuroectoderm
A)Scleral venous sinus
B)Optic nerve
C)Corneal epithelium
D)Central artery of retina
E)Pupillary membrane
Q3) ________ Has same origin as the cornea
A)Conjunctival epithelium
B)Neuroectoderm
C)First pharyngeal pouch
D)First pharyngeal groove
E)Mesenchyme
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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) ________ 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
Q2) ________ Derived from the neural plate
A)Tetracyclines
B)Ameloblastic layer
C)Hair follicles
D)Neural crest cells
E)Epithelial root sheath of the developing tooth
Q3) ________ Contains vessels and nerves
A)Dental pulp
B)Predentin
C)Dental sac
D)Enamel
E)Cement
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