January 8th, 2020 Brown Girl Dreaming by: Jacqueline Woodson

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Directions: ANSWER USING COMPLETE SENTENCES! Use the information you have been given to answer questions about: The Neuron (Nerve Cell).

*To improve your MATH SKILLS spend at least 20 minutes practicing them using IXL.COM. (REMEMBER TO ENTER YOUR USER NAME AND PASSWORD WHEN LOGGING ON! THAT WILL BE PROOF THAT YOU DID IT!)

Level#1

A neuron is a nerve cell. Neurons come in many sizes and shapes. In fact, one neuron in your leg can be more than 3 feet long! Neurons are the basic units of structure that make up the nervous system. A typical neuron has three main parts. The largest part of the neuron is the cell body. There are long fibers that branch from the cell body. Some of these fibers carry messages from other neurons into the cell body. These fibers are called dendrites. Other fibers carry messages away from the cell body to other neurons. These fibers are called axons.

1. What is a neuron?





2. Do all neurons come in the same size and shape?





3. How long can neurons be?












Level#2


A neuron is a nerve cell. Neurons come in many sizes and shapes. In fact, one neuron in your leg can be more than 3 feet long! Neurons are the basic units of structure that make up the nervous system. A typical neuron has three main parts. The largest part of the neuron is the cell body. There are long fibers that branch from the cell body. Some of these fibers carry messages from other neurons into the cell body. These fibers are called dendrites. Other fibers carry messages away from the cell body to other neurons. These fibers are called axons. Sensory neurons are connected to your sense organs. The eyes, ears, nose, tongue, and skin are your sense organs. Sensory neurons take messages away form the sense organs to the brain and spinal cord.

1. What is a neuron, and are all neurons the same size and shape?






2. How long can some neurons be, and what are neurons the basic units of?






3. How many part does a neuron have, and what is the largest part of the neuron?










Level#3


A neuron is a nerve cell. Neurons come in many sizes and shapes. In fact, one neuron in your leg can be more than 3 feet long! Neurons are the basic units of structure that make up the nervous system. A typical neuron has three main parts. The largest part of the neuron is the cell body. There are long fibers that branch from the cell body. Some of these fibers carry messages from other neurons into the cell body. These fibers are called dendrites. Other fibers carry messages away from the cell body to other neurons. These fibers are called axons. Sensory neurons are connected to your sense organs. The eyes, ears, nose, tongue, and skin are your sense organs. Sensory neurons take messages away form the sense organs to the brain and spinal cord. Motor neurons carry messages away from the central nervous system to muscles and glands. Glands are organs that make chemical substances that are used or released by the body. Muscles and glands respond to information from the brain.

1. Explain what a neuron is, what sizes and shapes neurons are, and how long can a neuron be.







2. Explain what neurons are the basic units of structure for, how many parts a neuron has, and what the largest part of a neuron is.







3. Explain where some fibers that branch from the cell body carry messages to, and what are these fibers called.









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