PEPERIKSAAN PERTENGAHAN TAHUN 2012-II

5(a) (b)    c ) d) e) f)

Pain receptor                                                                                                            P1 - When an impulses arrives in the axon terminal P2-  it stimulates (synaptic) vesicles to move towards and bind with         the presynaptic membrane P3 -The vesicles fuse / release the neurotransmitter into the synapse P4 -The neurotransmitter molecules move across the synapse to the       dendrite of another neurone P5 -Stimulated to trigger a new impulses which travels along the        neurone M  : Sensory receptor // finger tip N  : Effector // muscles tissues 1. Accomodation of the eye 2. Production of saliva 1. The nerve impulse will not be sent from afferent neurone to the     effector 2. The effector / muscles will not contract 3. The hand will not be removed immediately from the needle.