BIO270 Nervous System

Identify two types of synapses

• chemical synapse

• electrochemical synapse

• electrical synapse

• mechanical synapse

 

Identify the correct sequence of the formation of an action potential

• resting state --> depolarisation --> action potential rising phase --> action potential falling phase --> undershoot

• depolarisation --> resting state --> action potential rising phase --> action potential falling phase --> undershoot

• resting state --> depolarisation --> action potential falling phase --> action potential rising phase --> undershoot

• resting state --> undershoot --> action potential rising phase --> action potential falling phase --> depolarisation

Identify the correct pairs of myelinated neurons *

• Schwann cell - PNS

• Schwann cell - CNS

• oligodendrocytes - PNS

• oligodendrocytes - CNS

Planarians have cephalisation at the anterior part consisting of the brain and the eyespot

• True

• False

The following are true about stages of information processing, EXCEPT

• sensory input

• motor input

• integration

• motor output

The nervous system of cnidarians helps to control the expansion and contraction of the gastrovascular cavity

• True

• False

How to differentiate the nervous systems between various kinds of animals?

• based on the organisation of the neurons

• based on the organisation of the tissues and cells

• based on the organisation of the stomach

• all of the above

"Area where signals travel down the axons are generated" refers to

• node of ranvier

• dendrite

• schwann cell

• axon hillock

Sponges have a nervous system *

• True

• False

Ganglia are clusters of neurons in arthropods

• True

• False