Module 10 Correct
Terms in this set (21)
What is the name of the structure that affords a connection between the right and left hemispheres of the brain?
When a nerve cell is polarized (at its resting potential), the concentration of...
Sodium ions are higher on the outside and potassium ions are higher on the inside of its membrane.
Which of the following is not part of the neuron?
The cytoplasmic extensions that provide the main receptive surfaces for neurons are?
A person with an injury to her frontal lobe may have difficulty:
Reasoning and making decisions
What ions are necessary for a nerve impulse to occur?
Potassium and sodium
When Sodium crosses the membrane during a "message transfer", what typically happens to the voltage?
increases up to +50mV
___ are chemicals that are responsible for sending messages from one neuron to the next.
Jamey was hit in the head with a softball during his game last summer and is currently undergoing speech therapy due to damage sustained to this part of the cerebrum.
Reflexes (such as the knee-jerk reflex) occur when impulses travel from the muscle to the ____ and then back to the muscle.
Which part of the CNS makes up 80% of the brain?
Breathing and circulation are two very important necessities of life that are controlled by the ___ of the Central Nervous System.
A threshold stimulus results in the creation of a(n):
Which neuronal cells are responsible for providing support and insulation to the axons by creating a myelin sheath?
When nerve cells come together in a neuronal pool to make a signal stronger they are?
Which part of the brain is responsible for processing visual information?
The central nervous system consists of the:
Brain and spinal cord
Gaps between the myelin sheath along an axon are called:
Nodes of Ranvier
In the central nervous system, myelin is formed by...
Which reflex responds to pain?
Masses of myelinated nerve fibers appear...