Introduction to Behavioral Neuroscience
OpenStax
Chapter 5: Early Brain Development and Environmental
Influence
Multiple Choice
1. Which developmental process results in the formation of the three germ layers?
A. Cleavage
B. Blastulation
C. Gastrulation*
D. Neurulation
Bloom’s Level 1. Remembering
2. Which developmental process results in the formation of the neural tube?
A. Cleavage
B. Blastulation
C. Gastrulation
D. Neurulation*
Bloom’s Level 1. Remembering
3. Which is NOT a disorder that arises from defects in neural tube closure?
A. Autism*
B. Anencephaly
C. Spina Bifida
D. Encephalocele
Bloom’s Level 1. Remembering
4. The enclosed neural tube undergoes segmentation and gives rise to the prosencephalon,
mesencephalon, and rhombencephalon. The prosencephalon is further subdivided into the:
A. telencephalon and myelencephalon.
B. Mesencephalon and metencephalon.
C. metencephalon and myelencephalon.
D. telencephalon and diencephalon.*
Bloom’s Level 1. Remembering
5. What is the process of creating new neurons called?
A. Gliogenesis
B. Neurogenesis*
C. Neurulation
D. Gastrulation
1
, Introduction to Behavioral Neuroscience
OpenStax
Bloom’s Level 1. Remembering
6. Which is NOT a major step in synaptogenesis?
A. The growing axon must receive and detect neurotransmitters from the target cell.*
B. The growing axon must make temporary contact with the target cells.
C. The growing axon must detect a postsynaptic target and defasciculate.
D. The growing axon must match neurotransmitters of the presynaptic cell with the
receptors on the target postsynaptic neuron.
Bloom’s Level 2. Understanding
7. How does the brain eventually compensate for overproduction of neurons?
A. Excess neurons become silent and stop communicating
B. Excess neurons migrate away from the CNS
C. Excess neurons die by apoptosis*
D. Excess neurons transform into glia and other cell types
Bloom’s Level 1. Remembering
8. Early synapses are modified or eliminated because of specific signaling events. This process
is referred to as:
A. synaptic strengthening.
B. synaptic depression.
C. synaptogenesis.
D. synapse refinement.*
Bloom’s Level 1. Remembering
9. Which is NOT a characteristic of growth cones?
A. Growth cones change shape and extend finger-like protrusions called filipodium
B. Polymerization of actin subunits facilitates growth cone movement
C. When growth cones encounter a repulsive signal actin subunits detach (depolymerize)
from each other
D. Growth cones are unresponsive to external cues *
Bloom’s Level 2. Understanding
10. What is the role of tubulin in a growth cone?
A. Elongates the axon at the opposite end of the leading edge of the growth cone.*
B. Facilitates changes in direction when the growth cone encounter cues.
C. Provides a permanent, inflexible skeleton to resist changes in shape.
D. Gives tensile strength to the growth cone, such that is could not be pulled apart easily.
2
OpenStax
Chapter 5: Early Brain Development and Environmental
Influence
Multiple Choice
1. Which developmental process results in the formation of the three germ layers?
A. Cleavage
B. Blastulation
C. Gastrulation*
D. Neurulation
Bloom’s Level 1. Remembering
2. Which developmental process results in the formation of the neural tube?
A. Cleavage
B. Blastulation
C. Gastrulation
D. Neurulation*
Bloom’s Level 1. Remembering
3. Which is NOT a disorder that arises from defects in neural tube closure?
A. Autism*
B. Anencephaly
C. Spina Bifida
D. Encephalocele
Bloom’s Level 1. Remembering
4. The enclosed neural tube undergoes segmentation and gives rise to the prosencephalon,
mesencephalon, and rhombencephalon. The prosencephalon is further subdivided into the:
A. telencephalon and myelencephalon.
B. Mesencephalon and metencephalon.
C. metencephalon and myelencephalon.
D. telencephalon and diencephalon.*
Bloom’s Level 1. Remembering
5. What is the process of creating new neurons called?
A. Gliogenesis
B. Neurogenesis*
C. Neurulation
D. Gastrulation
1
, Introduction to Behavioral Neuroscience
OpenStax
Bloom’s Level 1. Remembering
6. Which is NOT a major step in synaptogenesis?
A. The growing axon must receive and detect neurotransmitters from the target cell.*
B. The growing axon must make temporary contact with the target cells.
C. The growing axon must detect a postsynaptic target and defasciculate.
D. The growing axon must match neurotransmitters of the presynaptic cell with the
receptors on the target postsynaptic neuron.
Bloom’s Level 2. Understanding
7. How does the brain eventually compensate for overproduction of neurons?
A. Excess neurons become silent and stop communicating
B. Excess neurons migrate away from the CNS
C. Excess neurons die by apoptosis*
D. Excess neurons transform into glia and other cell types
Bloom’s Level 1. Remembering
8. Early synapses are modified or eliminated because of specific signaling events. This process
is referred to as:
A. synaptic strengthening.
B. synaptic depression.
C. synaptogenesis.
D. synapse refinement.*
Bloom’s Level 1. Remembering
9. Which is NOT a characteristic of growth cones?
A. Growth cones change shape and extend finger-like protrusions called filipodium
B. Polymerization of actin subunits facilitates growth cone movement
C. When growth cones encounter a repulsive signal actin subunits detach (depolymerize)
from each other
D. Growth cones are unresponsive to external cues *
Bloom’s Level 2. Understanding
10. What is the role of tubulin in a growth cone?
A. Elongates the axon at the opposite end of the leading edge of the growth cone.*
B. Facilitates changes in direction when the growth cone encounter cues.
C. Provides a permanent, inflexible skeleton to resist changes in shape.
D. Gives tensile strength to the growth cone, such that is could not be pulled apart easily.
2
