Name: 腦外傷（TBI）概述 (Overview of Traumatic Brain Injury (TBI))
Uploaded: 2021-01-14T05:11:13.000Z
Duration: 7 min 43 s
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>> Interviewer: The Brain Injury Guide and Resources is a tool

for professionals, community members and family

to understand traumatic brain injury as well as how

to promote better living for those who live with a TBI.

In this interview, we will talk with Dr. Christopher Wolf,

a physiatrist in the Department of Physical Medicine

and Rehabilitation at the MU School of Medicine,

to learn some basic information about traumatic brain injury.

And, Chris, thanks very much for being with us.

>> Interviewer: First, Chris, give us an overview

of the structure of the brain, if you would.

>> Dr. Wolf: Well, with the brain itself,

a lot of people have seen a lot of different pictures.

It's -- basically, what it is is a very soft gelatinous structure

that you'll see back here is the cerebrum,

which is the overall bigger portion of the brain.

And then there's a brain stem that's not actually seen

on there that's continuous with the spinal cord itself.

up the central nervous system with the brain kind

of being the computer that runs the whole system.

of the brain structure to the functions of the brain?

>>Dr. Wolf: Well, we know there's definitely a connection

And anyone who tells you that we know everything

about the brain doesn't really know about the brain,

because there's a lot more we don't know than what we do know.

Now, with the brain, it is broken up on this picture

that we have behind us here into the different lobes.

The frontal lobe, which is a commonly injured structure,

seats a lot of judgment and reasoning and motivation.

That is a very common place for what makes us human

and what we call the executive functions,

which kind of incorporates all that is seated there.

The temporal lobe seats a lot of our memories,

and a lot of our ability to think is in that area.

And then the occipital lobe essentially controls a lot

of our visual functions and our ability to see

and helps sub-serve some of the other functions of the brain.

where we have the postcentral gyrus and the precentral gyrus,

fancy terms for those little areas of the brain.

But those are going to serve for movement

and initiating movement, being able to move your foot,

move your leg, and that sends the impulses

But, also, a different portion of it receives information

from the legs and arms and actually allows you to feel

And so those are the ones that you can see on the outside.

But then deeper than that, there's another layer,

and the subcortical layers; and there's areas

such as the basal ganglia and the cerebellum

which you can just see peeking out from underneath it kind

of modify the movements and have purposes to try

to help coordinate and make things work smoother

And those are -- those are all then connected

>> Interviewer: So what happens in a brain injury?

>> Dr. Wolf: Well, in a brain injury, there's multiple things

Now, we mentioned that the brain structure itself is very soft

and different densities through the brain.

So when the brain is injured, it's essentially this cerebrum

And when the head hits in any direction, there's going

to be not only the impact in certain areas of the brain --

usually that frontal lobe which we talked about --

And those are going to essentially hit the side

of the skull and cause bruising or contusions.

And you're actually going to get a tearing that can occur

or a shearing type of injury that can occur

Those tend to occur at what's called the gray white matter

junction, which is where the axons have an insulation on them

But also it can happen at some of the midline structures,