Class 1

Question 1

What are the four general functions of the nervous system?

Answer 1

1. Receive
2. Transmit
3. Analyze
4. Effector activity

Question 2

What are the four functions of a neuron?

Answer 2

1. Receive and Analyze
   
   • Dendrites and soma (cell body)
2. Transmission
   
   • Axon hillock
   • Myelinated / unmyelinated axons
   • Axon collaterals
3. Effector activity
   
   1. Axon terminals

Question 3

What are the four components of a neuron?

Answer 3

1. input
2. integrative (soma)
3. conductile (axon)
4. output (e.g. secretion, muscle, capillary, etc.)

Question 4

What are the four types of glial cells?

Answer 4

1. astrocytes: provide support and buffer neuronal activity
2. oligodendroglia & Schwann cells: myelin around axons
3. microglia: remove dead or degenerating cells
4. ependymal: line the ventricles of the brain