PLEASE ANSWER ACCORDING TO THE QUESTIONS!!!! WORTH 35 POINTS!!!!!!!!!
OpenStax Nervous System Part 1
Directed Reading Questions (DRQs)
OS Nervous Ch 12
1 What body parts make up the Central Nervous System (CNS)?
2 What body parts make up the Peripheral Nervous System (PNS)?
3 The main types of cells in the nervous system are called neurons. What are the other “helper” cells called?
4 What is the difference between an axon and a dendrite in a typical neuron?
5 What is the difference between gray and white matter?
6 The CNS has cell bodies that form a nucleus. What is this called in the PNS?
7 What is the difference between a tract and a nerve?
8 What are the THREE basic functions of the nervous system?
9 What is the somatic nervous system (SNS) responsible for?
10 What is the autonomic nervous system (ANS) responsible for?
11 What is the enteric nervous system (ENS) responsible for?
12 Is it true that we only use 10% of our brains?
13 How do scientists determine which brain areas are active in a person while they are doing certain tasks? Which device do they use?
OS Nervous 12.2
1 What is a synapse?
2 What are the functions of the Nodes of Ranvier?
3 Explain the difference in polarity between unipolar neurons, bipolar neurons, and multipolar neurons.
4 What is the function of an astrocyte?
5 What is the purpose of the blood-brain barrier (BBB)?
6 What is the function of an oligodendrocyte?
7 What is the function of the CSF (Cerebral spinal fluid)?
8 What do Schwann cells do?
9 Why is myelin important in white matter?
10 Tell what happens to a person that is diagnosed with (MS) Multiple Sclerosis:
11 Tell what happens to a person diagnosed with Guillain-Barre Syndrome:
