JIB 225W2 Part 2

The functions of ependymal cell is

• facilitate movement of cerebrospinal fluid

• produces myelin

• increase speed of nerve impulse

• detect stimuli

The electrical signal produced by neurons, called an action potential

• TRUE

• FALSE

Graded potentials are used to generate action potentials

• TRUE

• FALSE

Action potentials are used to generate graded potentials

• TRUE

• FALSE

The functions of motor neuron

• relay sensory signals to brain then return message back to motor neurons

• detect stimuli

• pass message from the brain to rest of body for muscle response

Neurons are composed of groups of nerves

• TRUE

• FALSE

Signals generated in nerves can travel short and long distances

• TRUE

• FALSE

The axon hillock joins the cell body (soma) to the axon

• TRUE

• FALSE

A motor neuron is an example of a type of  _______ neuron

• efferent

• afferent

• motor

• sensory

Glial cell that produces myelin is

• astrocytes & Schwann cells

• oligodendrocytes & astrocytes

• microglia & Schwann cells

• oligodendrocytes & Schwann cells