Anatomy Test 3 (8)

increases heart rate, helps support exercise or emergency actions, the "flight or fight' response

slows down heart rate, takes care of "rest and digest" activities

Neuronal cell bodies also contain free ribosomes  and prominent clusters of rough endoplasmic reticulum

function of nissl body

Is a general term for any neuronal process (extension) that emerges from the cell body of neuron.

what a nerve fiber describes

Have one main dendrite and one axon. They are found in the retina of the eye, the inner ear and the olfactory of the brain

Usually have several dendrites and one axon. Most neurons in the brain and spinal cord are of this type, as well as all motor neurons

Have dendrites and one axon that are fused together to form a continuous process that emerges from the cell body

Where are purkinje cells found

When does the schwann cells begin to wrap around the nerve fiber to insulate it.

Myelinates a single axon