Nervous System Vocal Part I, v 1 by MUM

What is TRUE about astrocytes

• Abundant star-shaped cells

• nearly half of neural tissue

• cling to neurons, bracing and anchoring them to blood capillaries

• They play a role in making exchanges of gases and clean up ions on the loose

What system are ASTROCYTES

• CNS

• PNS

what do axons do

• are part of every nerve cell

• are part of only some nerve cells

• Conduct electrical  impulse away from the cell body 

• BRING electrical impulses TO the cell body

What is the CNS

• central nervous system

• cerebral neuron system

• contains only brain and spinal cord

• contains all other parts but brain and spinal cord

What is true about ependymal cells?

These line the central cavities of the brain and the spinal cord. They have cilia that move back and forth circulating cerebrospinal fluid found in the various cavities in the brain and surrounding the spinal cord.

• line the central cavities of the brain and the spinal cord

• have cilia that moves cerebrospinal fluid

• helps to lubricate neurons

• part of the PNS

which system for ependymal cells

• PNS

• CNS

What is microglia?

• Part of the PNS

• monitor the health of nearby neurons

• Spider-like phagocytes

• dispose of debris

What system is microglia

• CNS

• PNS

What is true about the nervous system?

• the master control and communication system

• thought, action, and emotion reflects its activity

• It communicates with body cells using electrical impulses

• works with the endocrine system to maintain balance (homeostasis)

What is TRUE about neuroglia?

• includes ALL nervous cells that AID THE CNS

• means "nerve glue"

• aka glia or glial cells

• every neuroglia does the same function