Nervous Tissue

Phagocytic neuroglia

• astrocyte

• microglia

• dendrite

• axon

Myelin-forming neuroglia in brain and spinal cord

• oligodendrocyte

• astrocyte

• microglia

• axon

Transmits impulse into brain or spinal cord from receptors

• neurofibrils

• motor (efferent) neuron

• sensory (afferent) neuron

• microglia

Transmits impulse out of brain or spinal cord to effectors (muscles and glands)

• motor (efferent) neurons

• sensory (afferent) neurons

• axons

• dendrites

Transmits impulse from sensory to motor neuron within central nervous system

• astrocyte

• neurilemma

• neurofibrils

• interneurons

Nerve fiber arising from a slight elevation of the cell body that conducts an impulse (action potential) away from the cell body

• dendrite

• axon

• neurilemma

• interneurons

Star-shaped neuroglia between neurons and blood vessels

• interneurons

• oligodendrocyte

• astrocyte

• microglia

Neuron process with many branches that conducts an impulse towards the cell body

• axon

• dendrite

• neurilemma

• myelin sheath

Substance of the Schwann cell composed of lipoprotein that insulates axons and increases impulse speed

• myelin sheath

• neurofibrils

• astrocyte

• oligodendrocyte

Network of fine threads extending into nerve fiber

• neurilemma

• axon

• dendrite

• neurofibrils