What is the weight of a human brain at birth
Hint: <400 Grams
350 grams
100
wha is the most effective laboratory methods used to minimize damage caused by strokes?
To cool the brain
100
Throughout your lifetime, Axons and dendrites continue to modify their structure and connections
True
100
a chemical that promotes the survival and activity of neurons
Neurotropin
100
does activity improve learning and memory?
Yes! :)
200
This is the common cause for a stoke for young people
A closed head injury
200
2 types of stokes?
Ischemian & Hemorrhage
200
The gain and loss of spines indicates new connections, which relates to learning
true
200
At which age do people have the most neurons?
before birth
200
refers to a sharp blow to the head that does not puncture the brain
A closed head injury
300
Blind people often have?
A. Enhanced tactile senses
B. Lower verbal skills
C. All of the above
D. None
Enhanced tactile senses
300
after a stroke what can be a mechanism of later recovery?
The use of drugs (stimulants)
300
Exposure to cannabinoids shortly after a stroke produces a decrease in glutamate release, anti-inflammatory effects, and other alterations of brain chemistry which minimize brain damage after a stroke.
True
300
What is an undifferentiated cells found in the interior of the brain that generate “daughter cells” that can transform into glia or neurons?
Stem cells
400
temporary loss of blood flow to the brain
A cerebrovascular accident
400
What is the name of the drug you need to take to stop a stoke and why?
tissue plasminogen activator (tPA) because it breaks up blood clots and can reduce the effects of an ischemic strokes.
400
no new neurons are formed after early development
False
400
The development of neurons in the brain involves what?
Hyperactivity, impulsiveness difficulty maintaining attention, varying degrees of mental retardation, motor problems, heart defects, facial abnormalities
500
the accumulation of fluid in the brain resulting in increased pressure on the brain and increasing the probability of further strokes
Edema
500
Apoptosis enables the exact matching of the number of incoming axons to the number of receiving cells
True!! :)
500
How did researchers figure out that visual input to the auditory portions of the brain actually produced a visual sensation in the ferret study?
Researchers trained ferrets to respond to stimuli on the normal side, turning one direction in response to sounds and the other direction to lights. Then the researchers presented light to the rewired side and saw that the ferret turned in the original direction associated to lights.