True or false? Ependymal cells produce cerebrospinal fluid.室管膜细胞产生脑脊液。
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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.
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.
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.
What happens when you see a bee and hit it?Select the option below which displays the correct ordered sequence through the divisions of the nervous system:当你看到一只蜜蜂并打它时会发生什么？ 选择下面的选项，通过神经系统的部门显示正确的有序序列：
A. 1. sensory input.2. information processing.3. signal travels through sensory division.4. signal travels through motor division.5. activation of muscle.
B. 1. information processing.2. sensory input.3. signal travels through sensory division.4. signal travels through motor division.5. activation of muscle.
C. 1. sensory input.2. signal travels through sensory division.3. information processing.4. signal travels through motor division.5. activation of muscle.
D. 1. sensory input.2. signal travels through motor division.3. information processing.4. signal travels through sensory division.5. activation of muscle.
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