Chapter 2 Homework 2016 (1) - Handout Master 2.3 Fill-in-the-Blanks 1 A n extensive network of specialized cells that carry information to and from all

Chapter 2 Homework 2016 (1) - Handout Master 2.3...

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Handout Master 2.3 Fill-in-the-Blanks 1. A n extensive network of specialized cells that carry information to and from all parts of the body is called the nervous system . 2. Th e basic cell that makes up the nervous system and which receives and sends messages within that system is called a neuron . 3. Th e long tube-like structure that carries the neural message to other cells on the neuron is the axon . 4. O n a neuron, the branch-like structures that receive messages from other neurons is the dendrites . 5. Th e cell body of the neuron, responsible for maintaining the life of the cell and contains the mitochondria is the soma . 6. Th e fatty substances produced by certain glial cells that coat the axons of neurons to insulate, protect, and speed up the neural impulse is the myelin . 7. Th e bundles of axons in the body that travel together through the body are known as the nerves . 8. Th e charged particles located inside and outside of the neuron are called ions . 9. Th e state of the neuron when not firing a neural impulse is known as the resting potential . 10. Al l-or-none refers to the fact that a neuron either fires completely or does not fire at all. 11. Th e synaptic vesicles are sack-like structures found inside the synaptic knob containing chemicals.
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