Neural Activity 1

Animal Cells

Cell Membrane

Seperates inside of cell from outside environment

Nucleus, ER & Ribosomes

Contains DNA & protein synthesis

Mitochondria

Perform metabolic activities

Categorising neurons

Unipolar cells

Bipolar cells

Multipolar cells

Purkinje cells

Chandellier cells

Pyramidal cells

Anatomy of neurons

Dendrite

Fibers that receive information from other neuron

Soma

structure containing nucleus

Axon

Information sender

Myelin Sheath

Insulating material around axon

Nodes of Ranvier

Interruptions in myelin

Presynaptic Terminal

Point where axon releases chemicals

Afferent axon

Brings information into structure

Efferent axon

Sends information away from structure

Types of cells

Sensory neurons

Sensitive to stimulation

Motor neurons

Conducts impulses to muscles

Interneurons

neuron confined within given structure

Glia

Astrocytes

Regulates electrical activity of neurons

Microglia

Removes waste material from NS

Schwann cells

Form myelin around cells in PNS

Oligodendycytes

Form myelin around cells in CNS

Radial glia

Guide axon growth over long distances