Lecture 1 Flashcards
Frontal lobe has __ major parts. The __-___is used for ___ ___, ___ and ___ ___ __. The ___ halfis the __ __ and used for movement.
Frontal lobe has 2major parts. The pre-frontalis used for conscious thinking, higher cognitive function and decision making. The caudal halfis the motor cortexand used for movement.
___ lobe is the most caudal partof the cerebral cortex.
Occipital
The front half of the ___ lobe is somatic sensation. The caudal half is for ___, but it ismixed with the body map.
The front half of the parietallobe is somatic sensation. The caudal half is for vision, but is it mixed with the body map.A significant portion of the parietal lobe is believed to function in visuospatial processing, such as self-awareness of the location of one’s body parts. This allows you to walk around without stubbing your toe on all types of objects because you are unconsciously aware of the location of your toes and feet as you walk.The posterior side of the parietal lobe processes visual input and works to coordinate hand and eye movement.
If you were to closeyour eyes, you would still know where your limbs areinspace. What part of the brain is responsible for this?
Thepart in the PL where somatosensory (front) and visual (posterior) part meet.
A significant portion of the ___lobe is believed to function in visuospatial processing, such as self-awareness of the location of one’s body parts. This allows you to walk around without stubbing your toe on all types of objects because you are unconsciously aware of the location of your toes and feet as you walk.
A significant portion of the parietal lobe is believed to function in visuospatial processing, such as self-awareness of the location of one’s body parts. This allows you to walk around without stubbing your toe on all types of objects because you are unconsciously aware of the location of your toes and feet as you walk.
___ lobe is dedicated to hearing, but a lot of itisvision andassociation cortex where mutiple sensations come together and get analyzed.
Temporal lobe is dedicated to hearing, but a lot of is it vision and association cortex where mutiple sensations come together and get analyzed.
Which sulcus separates the frontal and parietal lobes?
Central sulcus
The sulcus that separates the frontal+parietal from the lateral lobe is the __ sulcus
The sulcus that separates the frontal+parietal from the lateral lobe is the lateralsulcus
In the occpital is the___ sulcus. The reason it is important is because this is where infromation from the__ is projected into the brain. Our image of the outside world takes shape first in this sulcus.
In the occpital is the calcarine sulcus. The reason it is important is because this is where infromation from the retina is projected into the brain. Our image of the outside world takes shape first in this calcarine sulcus.
___ gyrus is a majorcortical area for the limbic system and deals with emotion, decision making, learning and memory, etc.
Cingulategyrus is a majorcortical area for the limbic system and deals with emotion, decision making, learning and memory, etc.
____ gyrus is a major cortical area of the limbic system and has to do with emotion, learning, memory and decision making
Cingulate gyrus is a major cortifal area of the limbic system and has to do with emotion, learning, memory and decision making
____ gyrus and ___ sulcus delineate the limbic system in the temporal lobe.
Parahippocampal gyrus and rhinal sulcus delineate the limbic system in the temporal lobe.
The ___ is part of the cortex that is buried underneath the __ and __ cortex. If you pull the lips apart (the__ and ___), then you can see the ____. It is underneath the ___ sulcus.
The insulais part of the cortex that is buried underneath the frontal and temporalcortex. If you pull the lips apart (the frontoparietal operculum and temporal operculum), then you can see the insula. It is underneath the lateral sulcus.The insulahas many important functions. Probably the most important is what is infront of the green line. This is important forour internal body and our bodily state (how we feel about ourselves).
The __ ___ cortex is part of the cortex that sticks out over the eyes. This is a limib cortexx and it is important for decision making lie “should I do somethign now or do somethig later?”
The orbital prefrontal cortex is part of the cortex that sticks out over the eyes. This is a limbiccortex and it is important for decision making like “should I do something now or do somethig later?”
“Should I do something now, or should I do something later?”Which part of the brain is responsible for this type of reasoning?
The orbital pre-fronal cortex.
___ is for emotional learning, and the __ is for declarative memory that is learning of facts and events are hiding underneath the parahippocampal gyrus.
Amygdala is for emotional learning, and the hippocampus is for declarative memory that is learning of facts and events are hiding underneath the parahippocampal gyrus.
The __ is like a little bump that you can almost see on the medial side ofthe parahyppocampal gyrus. Anything that causes pressure in the forebrain will push the the ___. This causes ____ herniation.
The uncusis like a little bump that you can almost see on the medial side ofthe parahyppocampal gyrus. Anything that causes pressure in the forebrain will push the the uncus. This causes uncal herniation.
The fornix is a major fiber tract that leads to the ____ and goes down into the hypothalamus.
The fornix is a major fiber tract that leads to the hippocampus and goes down into the hypothalamus.
The cortex is a sheet of ___ that surround the __.
The cortex is a sheet of cells that surround the forebrain.
Thecortex is highly organized. There are ___ of cells that run perpindicular to the cortical surface called cortical columns. These columns are teh functional unit of the cortex. In teh top right of
Thecortex is highly organized. There are columnsof cells that run perpindicular to the cortical surface called cortical columns. These columns are teh functional unit of the cortex. In teh top right of
The __ is a structure tha basically funnels information from the rest of the brain into the cerebral cortex. ___ inputs are confined to the columns.
The thalamus is a structure that basically funnels information from the rest of the brain into the cerebral cortex. The thamalic inputs are confined to the columns.
Neurons and axons are sorted into layers. The layers are functionally important because it defines the __ and __
inputs and the outputs.
Brodmann’s Map:Somatosensory -Motor -Visual -Auditory -Prefrontal association -Association, verbal -
Brodmann’s Map:Somatosensory - 3, 2, 1, 5Motor - 4, 6, 8Visual - 17, 18, 19, 20, 37, 7Auditory - 41, 42Prefrontal association - 9, 10, 11, 46, 47Association, verbal - 39, 40, 21, 44
Neurons that respond to low frequency stimulation in hearing are located in the ___ of the cortical field. The neurons that respond to higher frequency are lcoated in the back. This is the map of the ___, because the different parts of the ___ respond to different frequencies of sounds. This map of the cochlea is replicated on the cerebral cortex. The columns of cells on this map will each respond to the frequencies listed on the map.
Neurons that respond to low frequency stimulation in hearing are located in the front partof the cortical field. The neurons that respond to higher frequency are lcoated in the back. This is the map of the cochlea, because the different parts of the cochlea respond to different frequencies of sounds. This map of the cochlea is replicated on the cerebral cortex. The columns of cells on this map will each respond to the frequencies listed on the map.
If you were to have a strokein your middle cerebral artery, what would you lose?
sensory and motor function of the face and upper limb, along with the ability to speak.
If you were to have a strokein your anteriorcerebral artery, what would you lose?
The lower body would be affected (not upper)
All of the action in terms of processing info takes place in the __ matter, where the cells are. But the white matter is equally important because it is also supplied with blood vessels, and strokes in these blood vessels can cause different symptoms.For example, the __ __ is the name for all of the mylinated axons that come out of the cortex when they are still sort of near the cortex. And after they havegone some distance they coalesce into a bigger bundle. One of the big bundles is the __ ___. It carries fibers to and from thethalamus. It carries fibers from the motor cortex to the brain stem and spinal cord. It has a fascinating set of symptoms. Ifyou get a strokeconfined in this area,because so many axons are compressed into such a small space, you see symptomsover a large part of the body.All the fibers from the corona radiata go to the __ __ and then to the brainstem.
All of the action in terms of processing info takes place in the grey matter, where the cells are. But the white matter is equally important because it is also supplied with blood vessels, and strokes in these blood vessels can cause different symptoms.For example, the corona radiatais the name for all of the mylinated axons that come out of the cortex when they are still sort of near the cortex. And, after they have gone some distance, they coalesce into a bigger bundle. One of the big bundles is the internal capsule.It carries fibers to and from the thalamus. It carries fibers from the motor cortex to the brain stem and spinal cord. It has a fascinating set of symptoms. Ifyou get a strokeconfined in the internal capsule,because so many axons are compressed into such a small space, you see symptomsover a large part of the body.All the fibers from the corona radiata go to the internal capsule and then to the brainstem.
The entire brain (almost) is connected via the __ __.
Corpus callosum
The fornix connects what?
The hippocampus, parts of the hypothalamus and other parts of the forebrain (a very important limbic connection).
The ___fiber pathway connects the parts of the brain that processes language and produce speech. So, the parts of the brain that understand language are more ____. The parts of the brain that produce speech is more in the front in the motor cortex. They are connected to eachother, so the motor part cannot produce intelligible speech without the caudal part. The ___ connects the two parts. Itcan have damage which can disconnect the two parts. it can be damaged with one or the other or both of the parts. Depending on where the damage is, you can have different aphasias.
The arcuate fiber pathwayconnects the parts of the brain that processes language and produce speech. So, the parts of the brain that understand language are more caudal. The parts of the brain that produce speech is more in the front in the motor cortex. They are connected to eachother, so the motor part cannot produce intelligible speech without the caudal part. The arcuateconnects the two parts. Itcan have damage which can disconnect the two parts. it can be damaged with one or the other or both of the parts. Depending on where the damage is, you can have different aphasias.
Networks are plastic. They can be altered by __
experience
The ___ ___ ___ of the NS eventually turns into a complex system of ventricles or fluid filled spaces within the brain.
The primordial central canalof the NS eventually turns into a complex system of ventricles or fluid filled spaces within the brain.
The lateral ventricle has an anterior horn, which goes to the ___ lobe and a posterior horn which goes into the __ lobe. It has a temporal horn which goes into the ___ lobe. All of these produce ___ which fill the ventricles.What secretes CSF?The ___ ___ which is located within the ventricles. CSF is largely made in the __ __and then finds its way down into the ___ ventricle and then the ___ventricle. It then goes out from the brainstem and through the __ __. It then it circulates up around the brain and gets reabsorbed.If there is a blockage in a ventricle, the __ __ will continue to produce CSF. In children (b/c their skull is not completely formed),if a blockage occurs, they can get ____.
The lateral ventricle has an anterior horn, which goes to the frontallobe and a posterior horn which goes into the posterior lobe. It has a temporal horn which goes into the temporallobe. All of these produce CSF which fill the ventricles.What secretes CSF?The choroid plexus,which is located within the ventricles. CSF is largely made in the lateral ventriclesand then finds its way down into the third ventricles and then the fourthventricle. It then goes out from the brainstem and through the __ __. It then it circulates up around the brain and gets reabsorbed.If there is a blockage in a ventricle, the choroid plexuswill continue to produce CSF. In children (b/c their skull is not completely formed),if a blockage occurs, they can get hypocephalus.
