3.5.3 responses in the human – nervous system follow-me – iquiz
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3.5.3 Responses in the Human – Nervous System
Follow-Me – iQuiz
![Page 2: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/2.jpg)
Q. True or False. Motor neurons conduct impulses towards the central nervous system.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 3: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/3.jpg)
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Q. What is a neuron?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 5: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/5.jpg)
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Q. Briefly explain the role of neurotransmitter substances.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 7: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/7.jpg)
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Q. State a function for the Myelin sheath.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 9: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/9.jpg)
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Q. Give a function of dendrites.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 11: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/11.jpg)
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Q. What is a sensory neuron?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 13: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/13.jpg)
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Q. State a function for Schwann cells.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 15: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/15.jpg)
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Q. What is the central nervous system?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 17: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/17.jpg)
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Q. TRUE or FALSE. A motor neuron carries impulses to the brain.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 19: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/19.jpg)
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Q. What is peripheral nervous system?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 21: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/21.jpg)
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Q. What is a motor neuron?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 23: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/23.jpg)
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Q. Give one way in which a nervous response differs from a hormonal response.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 25: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/25.jpg)
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Q. State one function of the cerebrum of the brain.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 27: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/27.jpg)
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Q. What is grey matter?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 29: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/29.jpg)
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Q. What are interneurons or association neurons?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 31: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/31.jpg)
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Q. State one function of the hypothalamus of the brain.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 33: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/33.jpg)
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Q. What is white matter?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 35: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/35.jpg)
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Q. State one function of the cerebellum of the brain.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 37: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/37.jpg)
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Q. What term is used for glands that secrete hormones?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 39: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/39.jpg)
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Q. State one function of the medulla oblongata of the brain.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
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Q. Name the small gaps between neurons.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
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Q. Neurons produce neurotransmitter substances. What is their function?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 45: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/45.jpg)
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Q. Give an example of a reflex action in humans.
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 47: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/47.jpg)
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Q. Why are reflex actions important in humans?
Brain and spinal cord
Cell bodies of neurons; Few axons; Little myelin
Faster; Shorter-lived; Electrical in nature
Fast response; Defence against injury
FALSE
Knee-jerk
Involuntary muscle control
Insulation; Protection; Speeds impulse
Homeostasis; Endocrine function
Many axons; Much myelin; Few cell bodies
Nerve cell
Nerve that carries impulse from receptor towards CNS
Nerves leading to and from CNS; Nerves not in CNS
Nerves that link two neurons
Language; Reason; Senses; Memory;
Intelligence
TRUE
Receives and carries impulses to the cell body
Produces myelin sheath
Synaptic cleft; Synapse
Carries impulse across synaptic cleft, triggers
impulse in next neuron
Movement; Balance; Coordination
Carry impulse across synapse
Nerve that carries impulse away from CNS to effector
Endocrine
![Page 49: 3.5.3 Responses in the Human – Nervous System Follow-Me – iQuiz](https://reader036.vdocument.in/reader036/viewer/2022062714/56649d025503460f949d50a4/html5/thumbnails/49.jpg)
CONGRATULATIONS
You’re Brilliant
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