Biological Bases of Behavior Flashcards
What are neurons
Individual nerve cells
Individual nerve cells are called…
Neurons
What are dendrites
Rootlike parts of neurons that stretch out from the cell body
Rootlike parts of neurons that stretch out from the cell body are called…
Dendrites
What is the soma
The neuron cell body which contains the nucleus and other parts needed to sustain cell life
The neuron cell body which contains the nucleus and other parts needed to sustain cell life is called..
Soma
What is the axon
The wirelike structure that extends from the neuron
The wirelike structure that extends from the neuron is called…
Axon
What is the myelin sheath
The fatty covering around the axon of some neurons that speeds neural impulses
The fatty covering around the axon of some neurons that speeds neural impulses is called…
The myelin sheath
What are the terminal buttons
The branched out end of the axon that contain neurotransmitters
The branched out end of the axon that contain neurotransmitters is called…
The terminal buttons
What are neurotransmitters
Chemicals contained in terminal buttons that enable neurons to communicate
Chemicals contained in terminal buttons that enable neurons to communicate are called…
Neurotransmitters
What is the synapse
The space between the terminal buttons of one neuron and the dendrites of the next
The space between the terminal buttons of one neuron and the dendrites of the next is called…
The synapse
What kind of charge does a neuron have in its resting state
Slightly negative
What is the all-or-none principle
A neuron either fires completely or doesn’t depending on if there are enough neurotransmitters received
“A neuron either fires completely or doesn’t depending on if there are enough neurotransmitters received.”
This is known as the…
All-or-none principle
What do excitatory neurotransmitters do
Excite the next cell into firing
Neurotransmitters that excite the next cell into firing are called…
Excitatory neurotransmitters
What do inhibitory neurotransmitters do
Inhibit the next cell from firing
Neurotransmitters that inhibit the next cell from firing are called…
Inhibitory neurotransmitters
What do acetylcholine neurotransmitters affect
Motor function
Motor function is affected by which neurotransmitters
Acetylcholine and dopamine
Lack of acetylcholine is associated with…
Alzheimer’s disease
Alzheimer’s disease is associated with…
Lack of acetylcholine
What do dopamine neurotransmitters affect
Motor movement and alertness
Motor movement and alertness is affected by which neurotransmitter
Dopamine
Lack of dopamine is associated with…
Parkinson’s disease
Parkinson’s disease is associated with…
Lack of dopamine
Overabundance of dopamine is associated with…
Schizophrenia
Schizophrenia is associated with…
Overabundance of dopamine
What do endorphins affect
Pain control
Pain control is affected by which neurotransmitter
Endorphins
What do serotonin neurotransmitters affect
Mood control
Mood control is affected by which neurotransmitter
Serotonin
Lack of serotonin is associated with…
Clinical depression
Clinical depression is associated with…
Lack of serotonin
What type of neurotransmitters are GABA neurotransmitters
Inhibitory
What type of neurotransmitters are Glutamate neurotransmitters
Excitatory neurotransmitter, involved in memory
What do norepinephrine neurotransmitters affect
Alertness and arousal
What do afferent neurons do
Take information from senses to the brain
What type of neurons take information from the senses to the brain
Afferent neurons
What do efferent/motor neurons do
Take information from brain to the rest of the body
What type of neurons take information from the brain to the rest of the body
Efferent/motor neurons
What does the central nervous system consist of
The brain and spinal cord
Which nervous system are the brain and spinal cord part of
Central nervous system
What does the spinal cord do
Transmits information from the rest of the body to the brain
What does the peripheral nervous consist of
All nerves in the body not encased in bone