Psychology CH.3
Glutamate acts as the brain's
Accelerator
If someone is bitten by a poisonous spider, which neurotransmitter causes muscle spasm and weakness
Acetylcholine
Neurotransmitter that is link to memory
Acetylcholine
When BLANK reach terminal buttons neurotransmitter are released
Action potentials
Blank neurons receive information from sensory organs?
Afferent Sensory
The BLANK principle states that once the threshold has been crossed, the action potential either fires or it does not. There is no half measure
All-or-nothing
Terminal buttons release a chemical into the synapse in order to
Be picked in by the dendrites of the next neuron
The nervous system has two main divisions the BLANK nervous system and the BLANK nervous system
Central Peripheral
Structures part of the forebrain
Cerebral cortex Limbic system Amygdala
In neural communication, when the electrical impulse gets to the end of the line, it communicates with the next neuron using?
Chemical
Medications used to treat BLANK often act upon serotonin
Depression
Information is transmitted through the nervous system by:
Electrical impulses Chemical messengers
BLANK is believed to be the neurotransmitter that plays is a key function as the brain's "brake pedal", inhibiting many neurons from firing
GABA
GABA has an important role in the brain by
Inhibiting many neurons from firing
Which of the following statements regarding norepinephrine are true?
It inhibits the firing of neurons in the central nervous system It excites the heart muscle It helps control alertness
The amygdala and the hippocampus are the structures of the
Limbic system
What technique for studying the brain creates an image of the brain using a magnetic field and radio waves
MRI
The BLANK begins where the spinal cord enters the skull
Medulla
What are located in the hindbrain
Medulla Cerebellum Pons
A single cubic centimeter of the human brain consists of well-over 50 million
Nerve cells
The blank blank is the body electrochemical communications circuitry
Nervous system
Interconnected pathways of nerve cells integrate sensory input and motor output are called?
Neural network
Communication between neurons occurs via chemical messenger called?
Neurotransmitter
Neurons communicate by releasing chemicals called BLANK into a synapse
Neurotransmitter
Neurons communicate by releasing chemicals called BLANK into a synapse
Neurotransmitters
When action potentials reach terminal buttons, chemical communicators called BLANK are released
Neurotransmitters
Spatial location and motor control are the responsibility of the BLANK lines of the brain
Parietal
Which statements regarding oxytocin are true?
Plays a role in social bonding Hormone Neurotransmitter
What functions do endorphins have?
Stimulate the firing of neurons Depress nervous system activity Eliminate pain
The reticular formation and BLANK are part of the midbrain region of the brain
Substantia nigra
Afferent or sensory nerves carry information
To the brain and spinal cord
Cumputerized axial BLANK is an imaging technique that produces a three-dimensional image obtained from X-ray
Tomography
How do neurons communicate between each other
Using chemical messenger
How do neurons communicate between each other?
Using chemical messengers
When an action potential abides by the all-or-nothing principle, once it reaches its threshold it moves all the way down the axon
Without losing any of its intensity
CAT scans use BLANK to study the Brain
X-ray
Where is the motor cortex located
back of frontal lobe
What part of the hindbrain connects to the spinal cord and regulates basic survival functions
brain stem
Every neuron has?
cell body, dendrites, and an axon
The central nervous system and the peripheral nervous system are the major divisions of the
nervous system
Cells in the nervous system are called
neurons
There are two types of cells in the nervous system
neurons and glial cells
Communication between neurons occurs via
neurotransmitters
What stimulates the release of norepinephrine
stress
Which of the following is NOT a part of the neuron
synapse
space between two neurons
synapse
The space between neurons is called
synaptic gap
