Nervous system, Homework assignemnt #1
Involved with neurogenesis, scar formation and BBB maintenance
Astrocytes
Most abundant CNS glial cell
Astrocytes
Match the subdivision of the nervous system with its components. Consists of the brain and spinal cord
Central Nervous System
As you are reading these words on the screen, what part of your brain is allowing you to perform the complex, conscious intellectual task of reading and comprehension? Diencephalon Cerebellum Mesencephalon Cerebrum
Cerebrum
Mnemonic for CSF flow
Cindy planned (choroid plexus) 3 or (3rd ventricle) 4 very (4th ventricle) convenient suppers (central canal of spinal cord) so sid (Subarachnoid Space) Doesn't starve (Dural venous sinus)
Function in the production and circulation of CSF
Ependymal Cells
Ganglia are clusters of neuron cell bodies located within the CNS. True False
False
Nodes of Ranvier are gaps found in the plasma membrane of neurolemmocytes and oligodendrocytes. True/False
False
Form the myelin sheath in the PNS
Neurolemmocytes
Form the myelin sheath in the CNS
Oligodendrocytes
Put the cranial meninges in order, from deep (closest to the brain) to superficial (farthest from the brain). Dura mater Arachnoid mater Pia mater
Pia mater Arachnoid mater Dura mater
PNS cells that surround and insulate the somas
Satellite Cells
Another term for the __________ system is the afferent nervous system.
Sensory
A regenerating axon in the PNS is guided by the regeneration tube, and grows at a rate of about 5 mm per day. True False
True
In myelinated axons, the plasma membrane of neurolemmocytes or oligodendrocytes must repeatedly wrap around a segment of an axon to form the myelin sheath. True/false
True
There are neurolemmocytes or oligodendrocytes at a node of Ranvier. True/False
True
There are neurolemmocytes or oligodendrocytes in unmyelinated areas of the neuron. True/False
True
Pain receptors in the skin send signals to the CNS for processing. These pain receptors are an example of ____________ neurons. afferent efferent association multipolar
afferent
Cells of the lymphatic system
microglia
Macrophages of the CNS
microglia
The most common type of neuron contains many dendrites and a single axon. Structurally, this is classified as a(n) ______________ neuron. anaxonic multipolar unipolar bipolar
multipolar
Includes cranial nerves, spinal nerves, and ganglia
peripheral Nervous System
In unmyelinated axons, the axon may be surrounded by a series of neurolemmocytes or oligodendrocytes. True/False
true