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True or false? Myelin provides electrical insulation for the axon, and decreases the speed of electrical signaling.髓鞘提供轴突的电绝缘，并降低电信号的速度。

A. TRUE
B. FALSE

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True or false? Ependymal cells produce cerebrospinal fluid.室管膜细胞产生脑脊液。

A. TRUE
B. FALSE

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The support cells in the central nervous system that produce myelin are:产生髓磷脂的中枢神经系统中的支持细胞是：

A. Schwann cells.
B. oligodendrocytes.
C. astrocytes.
D. microglial cells.

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What is a special feature of support (‘glial’) cells of the nervous system?什么是神经系统的支持（“胶质细胞”）细胞的特殊功能？

A. They can transmit electronic signals.
B. They receive electronic signals from neurons.
C. They can regenerate.
D. They cannot affect neuronal signaling.

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Tick all activities that are coordinated by the Peripheral Nervous System:(Hint: There are 4 correct activities)Please select more than one activity:勾选由周边神经系统协调的所有活动：（提示：有4个正确的活动）请选择多个活动：

A. activating muscle.
B. remembering.
C. hormone release.
D. increasing heart rate.
E. releasing energy into the blood stream.
F. being afraid.

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True or false? Myelin provides electrical insulation for the axon, and decreases the speed of electrical signaling.髓鞘提供轴突的电绝缘，并降低电信号的速度。

A. TRUE B. FALSE

True or false? Ependymal cells produce cerebrospinal fluid.室管膜细胞产生脑脊液。

The support cells in the central nervous system that produce myelin are:产生髓磷脂的中枢神经系统中的支持细胞是：

What is a special feature of support (‘glial’) cells of the nervous system?什么是神经系统的支持（“胶质细胞”）细胞的特殊功能？

Tick all activities that are coordinated by the Peripheral Nervous System:(Hint: There are 4 correct activities)Please select more than one activity:勾选由周边神经系统协调的所有活动： （提示：有4个正确的活动） 请选择多个活动：

A. TRUE
B. FALSE

Tick all activities that are coordinated by the Peripheral Nervous System:(Hint: There are 4 correct activities)Please select more than one activity:勾选由周边神经系统协调的所有活动：（提示：有4个正确的活动）请选择多个活动：