the brain questions

What does it mean if you have a lesion?

there is an area of abnormal damaged tissues

Which type of scan will show “hot spots” in the brain or show consumption of chemical activity

PET scan

Which type of scan uses a magnetic field to show signals?

MRI scan

What brain structure begins at the medulla and controls vital functions?

brainstem

What serves as the brain’s sensory control?

thalamus

What structure, located at the rear of the brainstem, is involved with nonverbal learning, time judgement, and motor cordination?

cerebellum

What is the purpose of the recticular formation?

to filter incoming stimuli and relay information

What is the limbic system?

a group of connected brain structures that regulate emotions and behavior by processing memory

How was it discovered the amygalda influences fear and agression?

by removing the 2 bean sized clusters from animals

What is the structure below the thalamus responsible for commanding/governing bodily maintenance?

hypothalamus

What does the hypothalamus influence?

hunger, thirst, body temp, sexual behavior

What is the hippocamus linked to?

memory

What is the cerebral cortex?

covers the brain hemispheres and is a thin layer of interconnected neural cells

What are the “worker cells” of the brain that provide nutrients and insulates mylein

glial cells

What are the four parts of the cerebral cortex?

frontal, parietal, occipital, temporal

What is the arched shaped region at the back of the frontal lobe?

motor cortex

What is located at the front of the parietal lobes, behind the motor cortex?

sensory cortex

If an area of the sensory cortex dedicated to the lips is larger, what does this mean?

that the lips have higher sensitivity