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Organogenetic Period: SA
Question 1
 Which phase of development involves the
maturation of physiologic processes?
A. Induction
B. Differentiation
C. Growth
D. Morphogenesis
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Organogenetic Period: SA
Question 1 Answer
 Which phase of development involves the
maturation of physiologic processes?
A. Induction
B. Differentiation CORRECT ANSWER
C. Growth
D. Morphogenesis
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Embryonic Development:
Three Phases
 Phase 1 – Growth: cell division and the
elaboration of cell products.
 Phase 2 – Morphogenesis: development
of shape, size or features of a particular
organ or part of the whole of the body.
 Phase 3 – Differentiation: maturation of
physiological processes.
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Organogenetic Period: SA
Question 2
 Which phase of development that
involves cell division?
A. Induction
B. Differentiation
C. Growth
D. Morphogenesis
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Organogenetic Period: SA
Question 2
 Which phase of development that
involves cell division?
A. Induction
B. Differentiation
C. Growth CORRECT ANSWER
D. Morphogenesis
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Organogenetic Period: SA
Question 3
 Structure A and Structure B interact during
the course of development. This culminates
in Structure A promoting the development of
Structure B. This process is termed:
A. Transformation
B. Induction
C. Differentiation
D. Morphogenesis
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Organogenetic Period: SA
Question 3 Answer
 Structure A and Structure B interact during
the course of development. This culminates
in Structure A promoting the development of
Structure B. This process is termed:
A. Transformation
B. Induction CORRECT ANSWER
C. Differentiation
D. Morphogenesis
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 Three possible
methods of
transmission of
signal
substances in
inductive cell
interactions.
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Organogenetic Period: SA
Question 4
 Neural crest cells give rise to:
A. Muscles of the pharyngeal arch origin
B. The adrenal cortex
C. The meninges
D. Both A and C
E. All of the above
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Organogenetic Period: SA
Question 4 Answer
 Neural crest cells give rise to:
A. Muscles of the pharyngeal arch origin
B. The adrenal cortex
C. The meninges
D. Both A and C CORRECT ANSWER
E. All of the above
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Organogenetic Period: SA
Question 5
Neural crest cells are derived from:
A. Paraxial endoderm
B. Lateral mesoderm
C. Endoderm
D. Ectoderm
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Organogenetic Period: SA
Question 5 Answer
Neural crest cells are derived from:
A. Paraxial endoderm
B. Lateral mesoderm
C. Endoderm
D. Ectoderm CORRECT
ANSWER
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Organogenetic Period: SA
Question 6
 What is the Carnegie Stage of development for an
embryo that demonstrates the following
characteristics: it is curved in a C-shape; otic
vesicles are present; upper limb buds are flipper-
like; attenuated tail is present; and there are three
branchial arches?
A. 11
B. 12
C. 13
D. 14
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Organogenetic Period: SA
Question 6 Answer
 What is the Carnegie Stage of development for an
embryo that demonstrates the following
characteristics: it is curved in a C-shape; otic
vesicles are present; upper limb buds are flipperlike; attenuated tail is present; and there are three
branchial arches?
A. 11
B. 12
C. 13 CORRECT ANSWER
D. 14
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Organogenetic Period: SA
Question 7
 Which of the following is the last
Carnegie Stage of embryonic
development?
A. 22
B. 23
C. 24
D. 25
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Organogenetic Period: SA
Question 7
 Which of the following is the last
Carnegie Stage of embryonic
development?
A. 22
B. 23 CORRECT ANSWER
C. 24
D. 25
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Carnegie Stages
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Organogenetic Period: SA
Question 8
Embryos show reflex response to
touch by this week.
A. Three
B. Four
C. Five
D. Sixth
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Organogenetic Period: SA
Question 8 Answer
Embryos show reflex response to
touch by this week.
A. Three
B. Four
C. Five
D. Sixth CORRECT ANSWER
22
Questions
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