Axon endings release from ints synaptic vesicles , a neuro-transmitter substance known as

Assertion : The chemical stored in the synaptic vesicles are termed as neurotransmitters. Reason : Synaptic vesicles release these chemicals in the synaptic cleft.

Assertion Arival of an impulse at the axon terminal stimulates the release of neurotransmitters in synaptic cleft. Reason These neurotransmitters are responible for the opening of ion channels.

Release of cheminal messenge from synaptic vesicles is triggered by

The given diagram shows axon terminal.Select the option that correctly matches the steps in transmission of impulses (list i-vii) with the labellings (A-C) in diagram. (i)Chemicals called neurotransmitters are released in the synaptic cleft through ion channels. (ii)When an impulse arrives at the axon terminal, it stimulates the movement of synaptic vesicles. (iii)Neurotransmitters are endocytosed into the neurons. (iv)The ions channels close with the binding of neurotransmitters to their specific receptors vesicles. (v)Synaptic vesicles move towards the membrane where they fuse with the plasma membrane. (vi)Neurotransmitters are released in the synaptic cleft. (vii)The released transmitters bind to their specific receptors on post-synaptic membrane

The axon terminals contain synaptic vesicles filled with

In the neurilemma, the synaptic vesicles release neurotransmitters into the synaptic ciert by …………………… .

How many statements are correct? i. Dendrites contains Nissi's granules ii. Dendrites transmit impulse towards the cell body iii. The proximal end of axon is branched iv. Synaptic knob possess synaptic vesicles containing neurotransmitters.

Which option is correct for conduction of nerve impulse along chemical synapse? i. At synapse, the membranes of the pre and postsynaptic neurons are separated by a fluid-filled space called synaptic cleft ii. Chemicals called neurotransmitters are incolved in the transmission of impulses at these synapses iii. The axom terminals contain vesicles filled with these neurotransmitters iv. When an impulse arrives at the axon terminal, synaptic vesicles release their neurotransmitters in the synaptic cleft. v. The release neurotransmitters bind to their specific receptors, present on the pre-synaptic membrane. vi. Opens ion channels allowing the entry of ions which can generate a new potential in the postsynaptic neuron vii. The new potential developed is only excitatory