Transcript Phone a friend

Leaving Certificate Biology
The Nervous System 2
15
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€1,000,000
€ 500,000
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€
250,000
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11
10
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€
€
125,000
64,000
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8
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€
€
32,000
16,000
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5
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€
€
€
€
8,000
4,000
2,000
1,000
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€
500
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€
300
2
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€
200
1
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€
100
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Which of the following structures of a reflex
arc can be stimulated to start a reflex action?
A
Receptor
B
Motor neuron
C
Effector
D
Sensory neuron
A: Receptor
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Which of the following structures of a reflex
arc can be stimulated to start a reflex action?
A
Receptor
B
C
Effector
D
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A
B
C
D
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B
C
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Which of the following structures of a
reflex arc transmits impulses toward
the central nervous system?
A
Receptor
B
Effector
C
Motor neuron
D
Sensory neuron
D: Sensory neuron
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Which of the following structures of a
reflex arc transmits impulses toward
the central nervous system?
A
C
B
Motor neuron
D
Sensory neuron
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90
80
70
60
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A
B
C
D
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B
C
D
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Which of the following is not a receptor?
A
Ears
B
Kidney
C
Nose
D
Eyes
B: Kidney
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Which of the following is not a receptor?
A
C
B
Nose
D
Kidney
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B
C
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B
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The main conducting fibre of a
nerve cell is called …
A
A dendrite
B
The axon
C
A synapse
D
A cell body
B: The axon
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The main conducting fibre of a
nerve cell is called …
A
C
A dendrite
B
D
The axon
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A
B
C
D
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B
C
D
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Which of the following structures of a
reflex arc transmits impulses from the
central nervous system?
A
Receptor
B
Effector
C
Sensory neuron
D
Motor neuron
D: Motor neuron
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Which of the following structures of a
reflex arc transmits impulses from the
central nervous system?
A
C
B
Sensory neuron
D
Motor neuron
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A
B
C
D
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B
C
D
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50:50
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For €2,000:
Sense organs are connected
to the spinal cord by …
A
A motor neuron
C An efferent neuron
B
A sensory neuron
D
A Schwann cell
B: A sensory neuron
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Sense organs are connected
to the spinal cord by …
A
B
C An efferent neuron
D
A sensory neuron
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A
B
C
D
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B
C
D
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Which of the following structures of
a reflex arc is a muscle or a gland?
A
Motor neuron
B
Receptor
C
Effector
D
Sensory neuron
C: Effector
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Which of the following structures of
a reflex arc is a muscle or a gland?
A
C
B
Effector
D
Receptor
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East
A
B
C
D
50
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The small gap between neurons is called …
A
Plexus
B
Synapse
C
Ganglion
D
Motor end plate
B: Synapse
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The small gap between neurons is called …
A
C
B
Ganglion
D
Synapse
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B
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A mass of nerve cells is called …
A
A ganglion
B
A nerve fibre
C
The dura mater
D
A neuron
A: A ganglion
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A mass of nerve cells is called …
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C
A ganglion
B
D
A nerve fibre
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B
C
D
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B
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50:50
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The pathway of a reflex arc involves the following
structures: 1 – sense organ; 2 – spinal cord; 3 –
motor neuron; 4 – muscle; 5 – sensory neurons.
The correct sequence of events is …
A
C
1-5-2-4-3
1-5-2-3-4
B
1-4-3-2-5
D
1-2-3-5-4
C: 1-5-2-3-4
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The pathway of a reflex arc involves the following
structures: 1 – sense organ; 2 – spinal cord; 3 –
motor neuron; 4 – muscle; 5 – sensory neurons.
The correct sequence of events is …
A
C
1-5-2-4-3
1-5-2-3-4
B
D
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50:50
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For €64,000:
Nerve cells or neurons that bring
messages to muscles are called …
A
Interneurons
B
Motor neurons
C
Afferent neurons
D
Sensory neurons
B: Motor neurons
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Nerve cells or neurons that bring
messages to muscles are called …
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C
Interneurons
B
D
Motor neurons
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B
C
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B
C
D
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For €125,000:
Muscle coordination is controlled by the …
A
Spinal cord
B
Corpus callosum
C
Medulla oblongata
D
Cerebellum
D: Cerebellum
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Muscle coordination is controlled by the …
A
C
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Medulla oblongata
D
Cerebellum
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B
C
D
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For €250,000:
The rate of breathing is controlled by the …
A
Cerebrum
C Intercostal muscles
B Medulla oblongata
D
Diaphragm
B: Medulla oblongata
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The rate of breathing is controlled by the …
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For €500,000:
The spinal cord serves as a centre for …
A
Synapses
B
Subconscious
thought
C
Reflex actions
D
Auxins
C: Reflex actions
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The spinal cord serves as a centre for …
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Synapses
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Reflex actions
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C or D
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The control of the size of the
pupil in the eye is …
A
A reflex action
C
A voluntary action
B A conditioned reflex
D
A tropism
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For €1,000,000:
The control of the size of the
pupil in the eye is …
A
C
A reflex action
B A conditioned reflex
D
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B
C
D
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