nevers and transmitter 2.0 / 5 based on 1 rating ? BiologyCells, tissues and organsGCSEEdexcel Created by: chris van hekCreated on: 07-02-13 18:33 what type of impulses do neurones transmit? they transmit electrical impulses. 1 of 16 what do they have at the end of them? they have something called dendrones which are able to connect to other neurones. 2 of 16 what do the electrical impulses pass through to get to a particular cell? they will pass through the axon to get to a particular cell. 3 of 16 what is the myelin sheath? when electrical impulses are passed along the axon the meylin sheath acts as an insulator so that they the impulses cannot be lost. 4 of 16 what else does the meylin sheath do? the meylin sheath also speeds up the time taken for the impulse to be sent. 5 of 16 why are neurones made long? they are made long because they are more efficent that have shorter ones put together. it is also able to speed up the impulse. 6 of 16 what is the connection called between two neurones? the connection between two neurones is called synapses. 7 of 16 what is the synapses? it is a tiny gap were neuro transmitters difuse along a gap. 8 of 16 what is another thing synapses does? they are able to set off another electrical impulses to the other neurone. 9 of 16 name 4 properties that nerves have? 1) they send very fast messages. 2)act for a very short time. 3) act on a very precise area 4) they send an electrical message. 10 of 16 what are muscles and glands when refering to the nerve system? they are known as effectors. 11 of 16 why do muslces contract? they will contract when responding to a nervous impulse. 12 of 16 what are motor neurones? they are neurones which are made up of short denornes and long axon which are able to carry message to the central nervous system. 13 of 16 where do the denrones and axons carry impulses to? they will carry impulses to the central nervous system aswell as the effector cells. 14 of 16 what are relay neurones? they are short dendrones and long axon which will carry the impulses form the sensory neurone to motor neurones. 15 of 16 what are sensory neurones? these are long dendrones and short axons that will carry nerve impulses from the receptor cells to the CENTRAL NERVOUS SYSTEM. 16 of 16
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