PSIO exam 4 content

Sensory functions are associated with which type of neurons

• efferent neurons

• interneurons

• afferent neurons

• motor neurons

Peripheral nervous system is best defined as

• outside the brain and spinal cord

• brain and spinal cord

• further divided into autonomic and somatic nervous system

• a&c

• b&c

The autonomic nervous system regulates which types of functions

• fight or flight response

• parasympathetic response

• sympathetic response

• rest and digest response

• all of the above

What are the two main cells associated with the nervous system ?

the type of changes associated with plasticity are

• physiological changes where the brain grows in size in order to retain more

• anatomical changes where new synapses form

• physiological changes where new synapses form

• strengthen or weaken already existing synapses

Which part of the neuron receives signals from other neurons?

• Axon

• Dendrites

• Cell body

• Myelin sheath

​ grey matter refers to the areas of the brain where ​ (a)   reside, this includes the ​ (b)   and other sub areas.

• neuron cell bodies
• cortex
• Myelinated axon
• fatty substance
• spinal cord
• dendrites

Match the following

• Insulation CNS ; growth regulating

• Microglia

• Immune defense cells

• Oligodendrocytes
• Insulation PNS

• Ependymal cells

• line the ventricles and central canal

• Schwann cells

• Nourishment; Neurotransmitter uptake
• Astrocytes

CSF flow and recycling occurs mainly during

• digestion
• urination
• circulation
• sleep

the capillaries of the blood brain barrier are best described as

• least permeable in the body

  highly selective

• thick layers

• most permeable in the body

  non-selective

• rigid and flexible