Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
73 Cards in this Set
- Front
- Back
This contains the brain and the spinal cord |
Central Nervous System (CNS) |
|
Located outside the Central Nervous System(CNS) and consists of the nerves that connect the Central Nervous System with the rest of the body |
Peripheral Nervous System (PNS) |
|
These Glial Cells are often called Nerve Glue |
Neuroglia |
|
This common type of Glial Cell helps form the blood brain barrier |
Astrocyte |
|
What prevents toxic substances in the blood from entering the nervous tissue of the brain and spinal cord |
Blood-Brain Barrier |
|
These neurons carry information to the Central Nervous System |
Sensory Neurons |
|
These neurons carry information away from the Central Nervous System |
Motor Neurons |
|
Found only in the Central Nervous System, these neurons form connections between sensory and motor neurons within the Central Nervous System |
Interneurons |
|
Dendrites, Cell Body, and Axons are all parts of what? |
Neuron |
|
These treelike structures receive signals from other neurons and then transmit signals toward the cell body |
Dendrites |
|
What transmits signals away from the cell body? |
Axon |
|
Star-shaped cells present in the blood-brain barrier |
Astrocytes |
|
These cells line the ventricles as part of the choroid plexus |
Ependymal Cells |
|
These cells play a protective role and are associated with damaged tissue |
Microglia |
|
These cells produce Myelin Sheath for neurons in the Peripheral Nervous System |
Schwann Cells |
|
These cells produce Myelin Sheath for neurons in the Central Nervous System |
Oligodendrocytes |
|
The Neurilemma is important in the regeneration of... |
Severed Nerves |
|
Clusters of cell bodies located in the Central Nervous System are generally referred to as... |
Nuclei |
|
Neurons that are NOT encased in Myelin are called... |
Unmyelinated Neurons |
|
Clusters of cell bodies located in the Peripheral Nervous System are called... |
Ganglia, or Ganglion Cells |
|
True or False! Schwann Cells produce Myelin Sheath for neurons in the Central Nervous System? |
False! Schwann Cells produce Myelin Sheath for neurons in the PERIPHERAL NERVOUS SYSTEM |
|
True or False! Oligodendrocytes produce Myelin Sheath for neurons in the Central Nervous System? |
True! Do not confuse the function of Schwann Cells with Oligodendrocytes! |
|
True or False! Axons receive signals from neurons and transmit them to the cell body. |
False! Dendrites transmit signals TOWARD to the cell body whereas Axons transmit signals AWAY from the cell body to other neurons. |
|
This is an electrical signal that conveys information along a neuron |
Nerve Impulse |
|
Nerve impulse is also referred to as... |
Action Potential |
|
This refers to the electrical charge difference across the membrane of the resting neuron |
Resting Membrane Potential |
|
As the electrical state of a cell changes from negative to positive, it is.... |
Depolarized |
|
As the electrical state of a cell returns to its resting state, following depolarization, it does what? |
Repolarizes |
|
The degree of depolarization that must be attained for the neuron to completely depolarize |
Threshold Potential |
|
The outward leak of Potassium is responsible for... |
Resting membrane potential |
|
The rapid inward diffusion of Sodium causes... |
Depolarization |
|
The rapid outward diffusion of Potassium causes... |
Repolarization |
|
True or False! The rapid outward diffusion of Potassium causes Depolarization. |
False! The rapid outward diffusion of Potassium causes Repol |