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Unit 1: Nervous Tissue

Across
Cells which line the ventricle of the brain.
Contains the brain and spinal cord.
Neuron type carrying impulses within the CNS.
Neurons can be categorized by function and _____.
The cell body holds the _____.
Characteristic of a neuron that is defined by an electrical change that is quickly propagated along the plasma membrane as voltage-gated channels.
Spaces between Schwan cells revered to as ____ of Ranvier.
Type of neuron that has two processes extend directly from the cell body; one dendrite and one axon.
Myelinates and insulates CNS axons to allow for faster action potential along axons in the CNS.
Bundle of fibers composed of neurons and at least two tissue types connecting body parts and organs to the CNS and carrying out impulses between body parts.
Interneurons are found ____ in the CNS.
Assists in the movement of substances from exiting the blood an entering the nervous tissue in the brain.
Bipolar neurons are relatively limited in humans to the parts of the nose and ____.
Sensory Neurons travel ____ the CNS while Motor neurons travel ___ to PNS.
Astrocytes exhibit a ____ shape.
Unlike neurons, Glial Cells are capable of ____.
Dense irregular connective tissue that wraps fascicle and supports blood vessels.
A cell of the nervous system, also called a nerve cell.
Interneurons are also called _____ neurons.
Sensory Neurons travel ___ the PNS while Motor neurons travel ____ the CNS.
Type of neuron that has multiple dendrites and an axon attached to the cell body.
Most abundant cell types in the central nervous system, consisting of six cell types.
Down
Characteristic of a neuron defined as the response to stimulus that causes change.
Synonym for a Motor Neuron is a ______ Neuron.
Process conducting impulses from the cell body.
Type of Glial cell that engulfs bacteria and debris.
Small bundle of axons.
Type of Glial cell that forms the blood-brain barrier.
The axon extends from a triangular region of the cell body and is named the axon ____.
Specific location where the neuron is functionally connected to another neuron.
Myelinates and insulates PNS axons, allows for faster action potential propagation along an axon in the PNS.
Neurons ability to last from formation in fetal development until being very elderly.
Neuron type carrying impulses toward the CNS.
Process conducting impulses towards the body.
Synonym for a Sensory Neuron is a _____ Neuron.
The axons give rise to a few side branches called axon _______.
As the impulse reaches the synaptic _____, these vesicles release their neurotransmitters into the spaces between the neuron and its target.
Ependymal cells and capillaries form the choroid ____.
Delicate layer of areolar tissue that separates and insulates each axon.
Synonym for Neurolemmocyte.
Encloses the entire nerve and is a thick layer of dense irregular connective tissue that encloses the entire nerve.
Lack of mitotic ability in neurons.
Consists of the nerves and ganglia outside the brain and spinal cord.
Type of neuron that extends directly from the cell and looks like a T, because two processes fuse into one long axon.
Neurons type carrying impulses from the CNS.
Synonym for Cell body.
Ependymal cell assists in production and circulation of ____.