A few spiders produce a venom that is a calcium-channel blocker. Where would this venom have on nerve impulse transmission?
A) at the axon terminal
B) at the axon hillock
C) along the dendrite
D) along the cell body membrane
E) at the postsynaptic membrane

Question

Quizplus · Accepted Answer

Venom that acts as a calcium-channel blocker would primarily affect the axon terminal, where calcium ions are crucial for the release of neurotransmitters into the synaptic cleft. Blocking these channels would inhibit neurotransmitter release, thereby affecting nerve impulse transmission.

A Few Spiders Produce a Venom That Is a Calcium-Channel