Neurobiology Biology-Neuron is located in the spinal

Neurobiology Biology-Neuron is located in the spinal

Subject: Biology    / General Biology    

Question
Neurobiology

Knowledge Inventory (Quiz) #2
INSTRUCTIONS: Please read and refer to readings designated for this week to answer the
questions below.
There are 25 Multiple Choice questions. sh is
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For questions 1-2, identify whether the neuron in question is part of the central nervous
system (A) or part of the peripheral nervous system (B).
?
?1) Neuron is located in the spinal cord, transferring sensory input to motor output neurons
from reflex action, such as the withdrawal reflex.?
A) CNS?
B) PNS?

?2) Neuron is carrying sensory information to the spinal cord from the skin.?
A) CNS?
B) PNS??

? 3) Which part of the neuron has most of the typical cellular organelles and the nucleus?
A) Axon hillock?
B) cell body (soma)?
C) axon?
D) dendrite?

4) Which part of the neuron most typically receives chemical input and is the primary
postsynaptic membrane site??
A) cell body (soma)?
B) nucleus
?C) axon terminal?
D) dendrite?
E) axon? ?

5) Which subpart of a neuron is typically associated with fusion of neurotransmitter vesicles?
A) cell body (soma)?
B) nucleus
?C) axon terminal
?D) dendrite??
E) axon?

?6) A sensory neuron will most typically be?
A) bipolar?
B) unipolar?
C) multipolar?

?7) Which glial cell types are involved in maintaining chemical barriers and fluid balance for the
brain??
A) ependymal and astrocytes?
B) astrocytes and microglia?
C) oligodendrocytes and astrocytes?
D) microglia and ependymal?
?
8) This glial cell type protects neurons against pathogens and removes debris by
phagocytosis.?
A) oligodendrocytes?
B) satellite cells?
C) Schwann cells?
D) microglia
E) ependymal? sh is
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9) The main difference between oligodendrocytes and Schwann cells is
____________________.?
A) the capacity to insulate axons
B) the presence or absence of lipids
C) whether a given cell myelinates only part of a single axon or several axons
D) the ability to facilitate signal propagation?
E) the presence or absence of cholesterol

?10) Nodes of Ranvier are located on _____________________.?
A) Schwann cells
?B) neuronal cell bodies?
C) oligodendrocytes?
D) neuronal axons

11) The image below is most representative of what type of neuron or neurite organization.
A) bipolar
B) unipolar
C) multipolar

12) The cell body with processes wrapped around axons (shown in the image below) is most
likely a(n) __________________.
A) oligodendrocyte?
B) satellite cell?
C) Schwann cell?
D) microglia cell?
E) ependymal cell

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13)Which of the following is the most common type of synapse??
A) presynaptic dendrite to postsynaptic axon?
B) presynaptic axon to postsynaptic soma?
C) presynaptic dendrite to postsynaptic soma?
D) presynaptic axon to postsynaptic axon?
E) presynaptic axon to postsynaptic dendrite? ?

14) For presynaptic vesicles to fuse with the presynaptic membrane and release a
neurotransmitter into the synaptic area, ____________ ions must be present in
the intracellular compartment of the axon terminal.?
A) sodium?
B) chloride?
C) potassium?
D) calcium?  

15) What is the molecule serotonin in the diagram below?
A) An ion
B) Glia
C) A synapse
D) A neurotransmitter or chemical messenger

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16) What is the outcome of synaptic vesicles in the axon terminal fusing with the presynaptic
membrane?
A) The vesicle is phagocytosed/destroyed.
B) Calcium in the axon terminal is released into the synaptic cleft.
C) Neurotransmitter in the vesicles is released into the synaptic cleft.
D) The vesicle will fuse with the postsynaptic membrane.

Th For questions 17-21, identify the labeled parts of the synapse shown below.
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17. What is labeled by #1?
A) presynaptic axon
B) postsynaptic axon
C) synaptic cleft
D) postsynaptic membrane
E) presynaptic vesicle
F) postsynaptic dendrite
G) presynaptic membrane

18. What is labeled by #2?
A) presynaptic axon
B) postsynaptic axon
C) synaptic cleft
D) postsynaptic membrane
E) presynaptic vesicle
F) postsynaptic dendrite
G) presynaptic membrane Th

19. What is labeled by #3?
A) presynaptic axon
B) postsynaptic axon
C) synaptic cleft
D) postsynaptic membrane
E) presynaptic vesicle
F) postsynaptic dendrite
G) presynaptic membrane

20. What is labeled by #4?
A) presynaptic axon
B) postsynaptic axon
C) synaptic cleft
D) postsynaptic membrane
E) presynaptic vesicle
F) postsynaptic dendrite
G) presynaptic membrane

21. What is labeled by #5?  
A) presynaptic axon
B) postsynaptic axon
C) synaptic cleft
D) postsynaptic membrane
E) presynaptic vesicle
F) postsynaptic dendrite
G) presynaptic membrane

22) ______________________ represent a space across which neurotransmitters travel. sh is
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B) Axon terminals
C) Postsynaptic membranes
D) Synaptic vesicles
E) Presynaptic membranes

Use the image below to answer Questions 23-25. Th

23) What is the name of the structure labeled by C? Be specific.
A) oligodendrocyte
B) axon hillock
C) axon terminal
D) synaptic vesicle
E) receptor
F) Node of Ranvier
G) presynaptic membrane
H) postsynaptic membrane

24) What is the name of the structure labeled by E? Be specific.
A) oligodendrocyte
B) axon hillock
C) axon terminal
D) synaptic vesicle
E) receptor
F) Node of Ranvier
G) presynaptic membrane
H) postsynaptic membrane Th sh is
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25) What is the name of the structure labeled by B? Be specific.
A) oligodendrocyte
B) axon hillock
C) axon terminal
D) synaptic vesicle
E) receptor
F) Node of Ranvier
G) presynaptic membrane
H) postsynaptic membrane