The main function of an axon is to... genreate EPSPs or IPSPs when neurotransmitters bind their membranes generate and transmit signals in the form of action potentials function as the biosynthetic center of the neutron form the myelin sheath

describe how the membrane potential varies over time AND distance as a graded potential move across the cell body of a neuron. Describe the movement of ions within the cell body as the graded potential moves away from the stimulus

Contrast chemically gated and voltage gated channels. How do their functions differ? In which segments of a neuron are found?

Draw a presynaptic and postsynaptic neuron at to demonstrate the release and acceptance of a neurotransmitter. Identify the following in your drawing: Ca2+, synaptic cleft, receptor, synaptic vessicle, SNARE, presynaptic neuron, postsynaptic neuron

structures in the following diagram of a neuron. ?do it

Why does an action potential move in an all-or-nothing fashion down the length of an axon without stopping?

An action potential is generated at the... trigger zone of the axon postsynaptic membrane cell body axon terminal

Neurotransmitters, the chemicals used in signaling across synapses, can be either re-absorbed by the pre-synaptic neuron OR hydrolyzed after release by enzymes.  Acetylcholine (ACh), the neurotransmitter at neuromuscular junctions, is broken down by the enzyme acetylcholinesterase (AChE) and then its component parts are re-absorbed. Sarin gas is an extremely dangerous neurotoxin that has been utilized in terrorism and chemical warfare.  It is known as a "nerve gas" because it blocks AChE.  Based on your understanding of the neuromuscular junction and hydrolitic enzymes, hypothesize how sarin gas le ads to paralysis and nerve damage in the people to whom it is exposed.

Conduction velocity refers to the [a] at which an action potential travels along a neuron's axon. In invertebrates, conduction velocity can only be increased by [b]. However in vertebrates (exclusively), such as humans, conduction velocity can also be increased by [c]. This enables vertebrates to conserve [d] while still increasing conduction velocity. [a] [b] [c] [d] [Choose ] [Choose ] [Choose ] [Choose ]

What is the term used to describe the rounded lump located at the end of the axon? synapses receptor sites terminal button O synaptic vesicles