MODULE 1 QUIZ

Question 1

which technique first produced unequivocal support for the neuron doctrine of the nervous system (as opposed to the reticular theory)?

-calcium imaging
-EEG (electroencephalogram)
-electron microscopy of nervous tissue
-extracellular electrical recordings

Answer 1

electron microscopy of nervous tissue

Question 2

which function is a characteristic primarily of neurons only, and not glia?

-transmits APs
-repairs the nervous system
-produces myelin
-supports electrical signals

Answer 2

transmits APs

Question 3

structure ____ is the main target for incoming signals received from the axons of other cells

Answer 3

dendrites

Question 4

which statement best describes the function of a neuron with multiple, highly branched dendrites and one axon?

-it integrates information from many neurons
-it receives information from only one other neuron
-it cannot integrate information from multiple neurons
-it passes information directly to multiple neurons

Answer 4

it integrates information from many neurons

Question 5

a neuron that innervates (i.e., makes synaptic contact with) a large number of other neurons

-represents convergent neural signaling
-represents divergent neural signaling
-must fire at very high frequencies to be useful
-can fire only at very low frequencies

Answer 5

represents divergent neural signaling

Question 6

true/false: glia are at least as numerous as neurons in the brain

Answer 6

true

Question 7

which cell produces myelin in the nerves of the peripheral nervous system?

-neuron
-Schwann cell
-microglia
-astrocyte

Answer 7

Schwann cell

Question 8

during the knee jerk reflex, the role of the spinal interneuron is to ____ the ____ muscle, allowing the leg to ____

-inhibit, extensor, flex
-inhibit, flexor, extend
-inhibit, extensor, extend
-excite, flexor, flex

Answer 8

inhibit, flexor, extend

Question 9

the CNS comprises (check all correct answers):

-sensory ganglia and spinal nerves
-the brain
-cranial nerves
-the spinal cord
-the motor axons that connect the CNS to skeletal muscles

Answer 9

-the brain
-the spinal cord

Question 10

the structural brain imaging technique that relies on atoms behaving like small magnets is called

-MRI
-CT
-EEG

Answer 10

MRI