What are functions throughout the body and responses to internal and external stimuli
100
This is the control center of the nervous system, which which impulses flow to and from, and from which impulses originate
What is the brain
100
Chemicals used by a neuron to transmit an impulse across a synapse
What are neurotransmitters
100
How many neurons does the brain contain
What is approximately 100 billion
200
Cells that transmit electrical signals called impulses
What is the neuron
200
What is the function of a synapse
What is the location at which a neuron can transfer an impulse to another cell
200
The three main parts of a neuron are:
What are the nucleus, dendrites, and axon
200
Each half of the cerebrum deals with
What is the opposite side of the body
300
Define cerebrum
What is the largest and most prominent region of the brain
300
What does myelin do
What is form a protective sheath that covers the axon
300
The brain stem connects
What are the brain and the spinal cord
300
Cerebrospinal fluid does what
What is bathe and protect the brain and spinal cord to act as a shock absorber and protect the central nervous system
400
Define action potential
What is the reversal of charges from negative to positive
400
These receive messages from sensory receptors and function as the control center for recognition and analysis of hunger, thirst, fatigue, anger, and body temperature
What are the thalamus and hypothalamus
400
What are the protective layers of connective tissue called meninges wrapped around
What are the brain and the spinal cord
500
The minimum level of a stimulus that is required to activate a neuron is called
What is the threshold
500
These regions of the brain stem regulate the flow of information between the brain and rest of the body