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