Ch.16 Sudden Quiz 1

When a nerve impulse arrives at the synaptic knob, _____ will be released to the synaptic cleft.

The neurotransmitter ____ across the synaptic cleft.

The neurotransmitter binds to the specific protein _____ on the membrane of the next neurone.

The binding of the neurotransmitter to the receptors stimulates the dendron or the cell body of the next neurone to ______ a nerve impulse.

Which of the followings is not the function of cerebrospinal fluid?

• to provide support to the spinal cord

• to moisturize and lubricate the spinal cord

• to act as a shock absorber

• to allow materials exchange

The outer region of the spinal cord is made up of ...

• White matter

• Grey matter

• Dark matter

The cell bodies of sensory neurones are found in the ...

• Ventral root

• Dorsal root ganglion

• Spinal cord

The cell bodies of motor neurones are found in the ...

• Ventral root

• Dorsal root ganglion

• CNS

Which of the following correctly describes a reflex action?

• Receptors are not always involved.

• Nerve impulses are transmitted from the motor neurone to the sensory neurone.

• Nerve impulse are always transmitted from the receptor to the effector via the spinal cord.

• Only a few neurones are involved.

A person touches a hot object and withdraws his hand immediately. How many neurones are involved in this action?

• 2

• 3

• 4

• 5