Week 13 Quiz

A region of the central nervous system is dense with neuron cell bodies and dendrites. What is the region called, and what does it do?

Select one.

• Gray matter, which processes signals
• White matter, which processes signals
• Gray matter, which carries signals between regions
• White matter, which carries signals between regions

A spinal cord is cut straight across. Where do its gray matter and white matter sit?

Select one.

• Gray matter outside in columns, white matter inside in horns
• Gray matter inside in horns, white matter outside in columns
• Gray matter outside as a cortex, white matter inside as a core
• Gray and white matter mixed evenly through the whole cut face

Which lobe of the cerebrum sits at the back of the brain, and what is its main job?

Select one.

• The temporal lobe, which holds primary visual perception
• The occipital lobe, which holds primary auditory sensation
• The occipital lobe, which holds primary visual perception
• The parietal lobe, which holds primary visual perception

The precentral gyrus is the primary motor cortex, where commands for voluntary movement begin. In which lobe does it sit?

Select one.

• The parietal lobe
• The temporal lobe
• The occipital lobe
• The frontal lobe

Carrying a full mug up a flight of stairs, a person keeps the mug level as it tilts on each step. Which region compares the motor command with the sensory feedback and coordinates the movement?

Select one.

• The cerebellum
• The cerebrum
• The hypothalamus
• The medulla oblongata

Which structure is the relay through which every sensory signal except smell passes on its way to the cortex?

Select one.

• The hypothalamus
• The thalamus
• The cerebellum
• The pons

Which list gives the meninges in order from outer to inner?

Select one.

• Pia mater, arachnoid mater, dura mater
• Arachnoid mater, dura mater, pia mater
• Dura mater, arachnoid mater, pia mater
• Dura mater, pia mater, arachnoid mater

A hand touches a hot pan and pulls away. Which order do the parts of this reflex arc run in?

Select one.

• Receptor, motor neuron, interneuron in the brain, sensory neuron, effector
• Effector, motor neuron, interneuron in the spinal cord, sensory neuron, receptor
• Receptor, interneuron in the spinal cord, sensory neuron, motor neuron, effector
• Receptor, sensory neuron, interneuron in the spinal cord, motor neuron, effector

True or false: cerebrospinal fluid carries oxygen to the brain the way blood does.

True or false.

• True
• False

Select each structure that is one of the three parts of the brainstem.

Select every option that applies.

• The midbrain
• The thalamus
• The pons
• The cerebellum
• The medulla oblongata