Show:
BRAIN IMAGING
BRAIN FACTS
BRAIN CELLS
DOES IT UNCONSCIOUSLY
GETTING INFO INTO THE BRAIN
100
A highly specialized x-ray that gives location and extent of tumors, not as clear as an MRI
What is a CAT scan?
100
Three pounds.
What is the weight of the human brain?
100
The two types of brain cells and the % in the brain.
What are neurons 1/10th and glial cells 9/10th.
100
During embryonic development both develop from the same neural tube.
What is the brain and the spinal cord?
100
80% of the brains weight.
What is the cerebrum?
200
Useful in understanding brain activity, person being scanned is injected with a small amount of radioactive glucose.
What is a Pet Scan?
200
20%
What is is the % of the body's energy consumption that the brain uses?
200
The three main parts of a neuron.
What are the dendrites, the cell body and the axon?
200
It's major role is to carry messages between the brain and the body.
What is the Spinal Cord?
200
Begins as a sensory input from the environment.
What is everything in our memory?
300
One of the newest brain inmaging techniques that shows structure of the brain and neural activity using no radioactive materials.
What is a fMRI?
300
The percentage of white and gray matter in the brain.
What are 40% grey matter and 60% white matter?
300
Synapse
What is it called when the neurons communicate electrochemically by passing messages between the axon terminals and the spines on the dendrites?
300
Hippocampus.
What is the part of the brain responsible for memory of the immediate past?
300
Neurons that fire together, survive together and wire together.
What is Hebb's Law?
400
Children with normal language skills have lopsided brains, the left hemisphere is larger and more active than the right.
What are the findings of a combination of an EEG and an MRI as it relates to language processing and speech production?
400
The fluid that surrounds the brain.
What is cerebrospinal fluid?
400
The number of dendrites per neuron and their main function.
What are 6,000 - 10,000 and to receive information from other cells?
400
The three functions of the Cerebellum.
What is balance, maintenance of body posture and coordination of muscle function?
400
Corpus Callosum
What is the 4 inch long bundle of fibers that connect the 2 hemispheres of the cerebrum?
500
They track the magnetic signals that neurons emit as they communicate, working without delays.
What is a MEG scan?
500
Two facts about the brain.
What is the brain is the size of a grapefruit, can fit in your hand, is shaped like a walnut or is continuous with the spinal cord?
500
Two facts about myelin.
What is it coats some (but not all) of the axon, speeds electrical impulses down axon, is light in color, white matter of the brain?
500
The three parts of the brain stem and it's function.
What is the midbrain, the pons and the medulla whose main function is survival?
500
The three ways to influence what the brain pays attention to.
What is novelty, intensity and movement?