The nervous system

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The nervous system

What type of neuron transmits signals from the receptor to the central nervous system *

1 point

Relay neurons

Sensory neurons

Motor neurons

Which of the following is not a reflex response *

1 point

Blinking

Kicking a ball

Pupils dilating

Knee jerk

What is bypassed in a reflex arc? *

1 point

The brain

The spinal chord

Neither

Which of the following are part of the central nervous system? (Tick all that apply) *

2 points

The brain

The pancreas

The spinal chord

Thyroid gland

Required

What is the role of the relay neurons? *

1 point

To transmit signals from a stimulus to the sensory neurons

To transmit signals from the motor neurons to the effectors

To transmit signals from the receptors to the sensory neurons

To transmit signals from the sensory neurons to the motor neurons

What is the role of motor neurons? *

1 point

To transmit electrical signals from the receptors to the central nervous system

To transmit electrical signals from the central nervous system to the effectors

To transmit electrical signals from the stimulus to the receptors

In an investigation into the effect of caffeine on human reaction time, which of the following could be control variables? *

2 points

The reaction time

The amount of caffeine consumed

Using the same person

Ensuring that the reaction time is measured at the same time after consuming caffeine

Repeating the experiment

Required

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