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Review - Chapter 12.1 and 12.2

An educational illustration of the human central nervous system, focusing on neurons and reflex arcs, with a bright and engaging design.

Central Nervous System Quiz

Test your knowledge on key concepts related to the central nervous system with this engaging quiz! Perfect for students and anyone looking to refresh their understanding of neurobiology.

Challenge yourself with questions covering:

Neuron structure
Reflex arcs
Pupil reflex mechanics
Light refraction in the eye

11 Questions3 MinutesCreated by ThinkingNeuron42

The Central Nervous System contains relay neurons.

True

False

A reflex arc has to have a sensory neuron, a relay neuron, and a motor neuron.

True

False

Touching a hot pan and retrieving one's hand is a voluntary action.

True

False

Neurotransmitters are shaped complementarily to the receptors on the postsynaptic neuron.

True

False

Fovea rests on the cornea.

True

False

Which of the following is not true for pupil reflex?

When there is dim light, pupil gets bigger.

When there is dim light, radial muscles contract.

Pupil reflex is automatic.

When there is strong light, circular muscles relax.

The structure on a neuron that picks up signals is called

Dendrite

Axon

Myelin Sheath

Axon terminal

What does the PNS consist of?

The brain and spinal cord

The brain and nerves

The nerves outside the brain and spinal cord

The spinal cord only

Which two parts of the eye refract light?

The pupil and cornea

The iris and pupil

The cornea and lens

The lens and iris

There is a blind spot on the retina because...

It is where optic nerve leaves the retina.

Light can't hit the blind spot so there is no stimulus.

There are no receptor cells to receive the stimulus.

Optic nerve isn't connected to the blind spot so information is not transferred to the brain.

Name:

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