Question 1

Together,the pons and medulla form the hindbrain.

Accepted Answer

The pons and medulla oblongata are both parts of the hindbrain, and together they work to regulate vital functions such as breathing, heartbeat, and blood pressure.

Question 2

The hippocampus is considered part of the neocortex.

Accepted Answer

The hippocampus is actually part of the medial temporal lobe and is not classified as part of the neocortex.

Question 3

Histological methods have been used to classify the cerebral cortex into different cytoarchitectonic divisions,such as the Brodmann areas.Can we predict the function of a brain region based on cytoarchitectonics? Why or why not?

Accepted Answer

The answer of Histological methods have been used to classify...

Question 4

Choose six of the following eight brain regions.For each region,briefly describe its location in the brain and one of its functions.Draw a picture to accompany your answer.
•Frontal lobe
•Parietal lobe,
•Temporal lobe.
•Occipital lobe.,
•Basal ganglia
•Hippocampus
•Amygdala
•Cerebellum

Accepted Answer

The answer of Choose six of the following eight brain...

Question 5

What is meant by the term neural plasticity? Provide three examples of this phenomenon discussed in the text or in class.

Accepted Answer

The answer of What is meant by the term neural...

Question 6

What are the advantages of a cerebral cortex with gyri and sulci? Why might the human cerebral cortex be more heavily folded than those of other mammals?

Accepted Answer

The answer of What are the advantages of a cerebral...

Question 7

Describe the events following the fertilization of an egg that pertain to the development of the nervous system.In your answer,name the three main types of cell lines found in the blastula and describe what parts of the organism these cells become.

Accepted Answer

The answer of Describe the events following the fertilization of...

Question 8

Sulci are the protruding rounded surfaces of the cortex,and gyri are the fissures and invaginations between the sulci.

Accepted Answer

The statement is reversed. Sulci are actually the fissures and invaginations between the gyri, while gyri are the protruding rounded surfaces of the cortex.

Question 9

During development,a structure called the blastula begins to form when the neural plate invaginates via neural folds being pushed up at its border.

Accepted Answer

The blastula is an early stage of embryonic development that forms before the neural plate; the neural plate invaginates to form the neural tube, not the blastula.

Question 10

Anterograde tracers are absorbed by the dendrites or soma of a neuron and then diffuse along the axons.

Accepted Answer

Anterograde tracers are absorbed by the dendrites or soma of a neuron and then transported along the axon towards the presynaptic terminals. This allows for the tracing of neural circuits and connections from the cell body towards their targets.

Question 11

The cerebellum is believed to contain as many neurons as the rest of the central nervous system combined.

Accepted Answer

The cerebellum is densely packed with neurons, particularly granule cells, and is estimated to contain about half of the total number of neurons in the human brain, which is comparable to the rest of the central nervous system.

Question 12

Neural inputs that target the cortex and originate in the thalamus are referred to as corticothalamic.

Accepted Answer

Neural inputs that target the cortex and originate in the thalamus are referred to as thalamocortical, not corticothalamic.

Question 13

The visual cortex is able to remap to process information about touch and audition in blind people.

Accepted Answer

Studies have shown that the visual cortex in the brains of blind people can adapt and remap to process information from other senses such as touch and audition. This phenomenon is known as cross-modal neuroplasticity.

Question 14

The term commissure refers to the white matter tracts that connect the brain and spinal cord.

Accepted Answer

The term commissure refers to the white matter tracts that connect the two sides of the brain.

Question 15

Tract-tracing methods allow researchers to identify connections between different neurons and brain regions.

Accepted Answer

Tract-tracing methods involve labeling or staining neurons or their axons and following them through the brain to identify their connections with other neurons and brain regions. This technique is widely used in neuroscience research to map neural circuits and understand brain function. Therefore, the statement is true.

Quiz 3: Neuroanatomy and Development