Physiological Psychology – Flashcards

Unlock all answers in this set

Unlock answers
question
The blood Brain barrier is made up of closely packed glial cells True or false
answer
FALSE
question
the Action potential of a neuron depends mostly on what movement of ions?
answer
Sodium Ions Entering the cell
question
At the resting Potential, the potassium channels are completely closed and the sodium channels are almost closed (True or false)
answer
FALSE
question
When the Neuronal membrane is at rest, the sodium channels
answer
are CLOSED, so there is almost NO flow of SODIUM
question
What will most affect the speed of the axon?
answer
the RESISTANCE of the membrane
question
Neurons are distinguished from other cells by shape (True or false)
answer
TRUE
question
Electrical Gradients lead to the
answer
movement of ions having the opposite electrical charges
question
Both dendrites and cell bodies are capable of producing action potentials (True or false)
answer
FALSE
question
Gaps in the insulating material that surrounds axons are known as
answer
Nodes of ranvier
question
When a membrane is at rest, what attracts sodium ions to the inside of the cell?
answer
both an electrical gradient and a concentration gradient
question
A membrane that produces an action potential whenever the potential across it reaches what level?
answer
The threshold of excitation
question
Ribosomes are the part of a cell that
answer
synthesizes new proteins
question
Glial cells serve many functions
answer
True
question
Which of the following is an advantage of having a resting potential ?
answer
the cell is prepared to respond quickly to a stimulus
question
why do neurons rely so heavily on glucose as their source of nutrition?
answer
Other fuels do not readily cross the blood-brain barrier
question
protein channels allow____ molecules to cross the cell membrane
answer
Small charged
question
What is one major cause for the resting potential of a neuron's membrane?
answer
the sodium-potassium pump
question
Neurons receive information and transmit it to other cells (true or false)
answer
TRUE
question
Which scientific work did cajal apply to his study of infant brains?
answer
Camillo Golgi's cell staining method
question
Neurons typically have one ____, but many __
answer
Axon; dendrites
question
Which specialist is most likely to deal with brain damage?
answer
Neuropsychologist
question
Which explanation of human behavior focuses most on learning through experience?
answer
Ontogenetic
question
Jill studies how hormones influence sexual behavior of rats. She is most likely a
answer
Biological psychologist
question
Which question is suggestive of the so-called mind-body problem?
answer
What genes are involved with schitzofrenia ??
question
a(n) ___ explanation of the brain invokes the chemical reactions that enable hormones to influence brain activity
answer
Physiological
question
If you are interested in clinical psychology, school psychology, social work, physical therapy, or another field that is on the outskirts of neuroscience, which resource would be a good choice?
answer
the Dana Foundation Website
question
A(n) ___ is most likely to be concerned with selective pressures
answer
evolutionary psychologist
question
The universe could have been different in many ways, nearly all of which would have made life impossible (True or false)
answer
TRUE
question
Certain pairs of species have similar songs. For example, dunlins and baird's sandpipers, two shorebirds species, give their calls distinct pulses, unlike other shorebirds. what type of explanation is suggested here?
answer
Evolutionary
question
mapping out the relationship between shared bone structures across different species suggests that there is a(n) ___ explanation
answer
evolutionary
question
A psychiatrist is most likely to
answer
help people with emotional distress
Get an explanation on any task
Get unstuck with the help of our AI assistant in seconds
New