Nervous System A and P 5, Synapse

Which of the following are true about synaptic gaps?

a. They are only present in the peripheral nervous system

b. They are only present in the central nervous system

c. They are present in the central and peripheral nervous system *

d. They are only present in motor pathways

Which of the following are true about the physiology of the synapse?

a. Neurotransmitters are synthesised in the post synaptic neurone

b. Neuronal transmission across the synapse is electrical in nature

c. A nerve impulse can only travel from the post to the pre synaptic membrane

d. A nerve impulse can only travel from the pre to the post synaptic membrane *

Which of the flowing are true about the physiology of the synapse?

a. Synaptic gaps in a neuronal circuit will speed up the overall rate of transmission

b. Synaptic gaps in a neuronal circuit will neither decrease nor increase the overall speed of transmission

c. Synaptic gaps in a neuronal circuit will facilitate two-way flow of nerve impulses

d. Synaptic gaps in a neuronal circuit will facilitate one-way flow of nerve impulses *

Neurotransmitters will;

a. Interact with the phosphates in the post-synaptic membrane

b. Interact with specific receptor molecules on the pre-synaptic membrane

c. Interact with specific receptor molecules on the post-synaptic membrane *

d. Only interact with specific receptor molecules on the motor end plates in skeletal muscles

Chemical transmitters move across the synaptic gap using which physical process;

a. Osmosis

b. Electrical depolarisation

c. Active transport

d. Diffusion *

One function of a synapse is to;

a. Allow a nerve impulse to travel from the post-synapitc neurone to the pre synaptic neurone

b. Allow a nerve impulse to travel from the pre-synapitc neurone to the post synaptic neurone *

c. To transmit a nerve impulse across the spinal cord

d. To increase the overall amount of electrical activity in the nervous system