Ex.17 - Histology of Neurons & Neuroglial Cells

Motor Nerve Cells in the Spinal Cord

The multipolar neuron with multiple dendrites are shorter than the single axon.

The axonal hillock is where action potentials are generated and propagated away from the axon.

The nucleus is visible in the cell body (soma)

cell body (soma)

axon hillock

where action potentials are generated and propagated away from the axon

axon

Nucleus

dendrites

astrocyte

star like neuroglial cells that act as a barrier between brain tissue and blood vessels

ependymal cells

line the cavity in the brain and regulates circulation of cerebrospinal fluid CSF

choroid plexus

modified ependymal cells that function to produce cerebrospinal CSF found in various ventricles of the brain

4th ventricle of the brain

Oligodendrocytes

have processes that wrap around multiple axons of neurons found in the Central Nervous System to form Myelin Sheath

They resemble ring structures under a microscope