Nerves and Synapses

Location at which a neuron can transfer an impulse to another cell with the use of neurotransmitters is called __________.

• myelin sheath

• axon

• threshold

• synapse

What is the purpose of the myelin sheath on the axon?

• To maintain temperature

• To improve conductivity

• To protect the axon

• To release neurotransmitters

a signal molecule that transmits nerve impulses across synapses

• neuron

• neurotransmitter

• nerve

• action potential

The part of the neuron that takes information away from the cell body is called a(n) _____________.

• dendrite

• axon

• cell body

• Schwann cell

What is the general name for the chemicals in the nervous system that allow messages to be passed across the synapse?

• Amino Acid

• Enzyme

• Hormone

• Neurotransmitter

What is the chemical used by a neuron to transmit an impulse across a synapse to another nerve cell?

• Neurotransmitters

• Synapse

• Threshold

• Impulse

_____ neurons carry messages from your periphery to the central nervous system

• Motor/efferent

• Sensory/afferent

_____ neurons carry messages away from the central nervous system and out to muscles or glands. The RED neuron in diagram.

• sensory

• motor

• inter

• central

Different neurons have different amounts of processes that leave its cell body. Match the following.

• Have one process

• Bipolar neurons

• Have many processes

• Unipolar neuron

• Have two processes

• Multipolar neurons

Label the Neuron-What does the letter "H" represent?

• Myelin Sheath

• Axon

• Axon Terminal

• Dendrite