a. Make a rough drawing of the lateral aspect of the left cerebral hemisphere.
b. You may be thinking, 'But I just can't draw!' So, name the hemisphere involved with most people's ability to draw.
c. On your drawing, locate the following areas and provide the major function of each: primary motor cortex, premotor cortex, somatosensory association cortex, primary somatosensory cortex, visual and auditory areas, prefrontal cortex, Wernicke's and Broca's areas.

Question

Accepted Answer

Welcome back, everyone. Let's look at our next problem. It says the areas are matched with the lobes of the cerebrum in which they are located, identify which of the following is incorrectly matched. So we'll go through each of the pairings, remembering that we want to look for the one that is the wrong match. So the wrong lobe for the area described and just to help kind of keep ourselves oriented, I'm going to post the world's most basic diagram of the lobes of the cerebrum. So this particular diagram doesn't look a whole lot like a brain. But I think sometimes it's useful to have a really simplified version just to kind of keep the basic spatial relations in mind when thinking about these structures. So looking at the cerebrum in this diagram, I also have labeled on the brain stem, the cerebellum palms, ponds and me a just to orient ourselves, but just recalling these basic lobe locations, the frontal lobe is pretty easy to remember. It's in the front of that top portion of the brain behind the frontal lobe is the parietal lobe behind. And next to it, the occipital lobe kind of encompasses the very back part of the brain stretching from top to bottom at the very back. And then the remaining region is a temporal lobe sort of tucked underneath both the frontal and parietal lobes, kind of uh next to the occipital lobe in the front of that lower part of the cerebra. So again, really, really crude diagram, but just helping us keep in mind these basic locations. So let's start with choice a the primary olfactory cortex and the parietal lobe. Well, this one is an incorrect pairing right off the bat. The primary olfactory cortex is not located in the parietal lobe. But in the temporal lobe, primary olfactory cortex is responsible for processing sensory the um the smell input. So it's a sensory input for your sense of smell. The parietal lobe does process sensory information but things like touch, uh pain and temperature, it's not where you have the uh smell data being processed. So, again, the primary olfactory cortex is in the temporal lobe, not the parietal lobe. So we've got our incorrect match right away. We'll just briefly look at the other choices. Choice. Broca's area is in the frontal lobe as this gives us uh broker's area is one of the with speech production and then choice C Wernicke's area is correctly located in the temporal lobe and that's also a speech processing center. It has to do with language comprehension, but they're both properly located here. So not our answers. And finally choice the the visual area in the occipital lobe and that is the correct location for visual processing. So again, our incorrect pairing here is choice a primary olfactory cortex and provide a loop. See you in the next video.

Verified Solution

Key Concepts

Cerebral Hemispheres

Cortical Areas and Their Functions

Neuroanatomy and Drawing Skills