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.
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