BIOL 252 Exam 1 Study Guide | Nervous System & Autonomic Nervous System

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BIOL 252 - Exam 1 Study Guide – Nervous System (Ch 11) & ANS (Ch 14)

Exam 1 will consist of 50 multiple-choice and worth a total of 100 points (2 points each question). You should
complete this study guide comprehensively, making sure all content is covered.

This study guide is based on the sections of the textbook covered in lecture. In addition to completing this study
guide, you are responsible reading the following sections of the textbook:

Chapter 11: Nervous System and Nervous Tissue

11.1 Overview of the Nervous System
11.2.1 Neurons
11.2.2 Neuroglia
11.3 Electrophysiology of Neurons
11.4 Neuronal Synapses
11.5.1 Neurotransmitter Receptors

Chapter 14: The Autonomic Nervous System and Homeostasis

14.1 Overview of the Autonomic Nervous System
14.2.3 Effects of the Sympathetic Nervous System on Target Cells
14.3.3 Effects of the Parasympathetic Nervous System on Target Cells
14.4 Homeostasis: PNS Maintenance of Homeostasis


- List the functions of the nervous system.
input-gather info
sensory Motor Output
Integration
-

processes and interprets LResponds by activating
muscles glands .



- List the organs of the central nervous system.
Brain & Spinal Cord

- Differentiate between central and peripheral nervous system.
Centralisinterneurons (integration
as
Peripheralisallmotorpairs (ommlines)
cent

out of brain
cord12 Pairs of nerves
.



.




- Describe
Sensoryeatic
the divisions of the peripheral nervous system.
Motor Tomaticparasympathetic I autonomica tem


- Differentiate between sensory and motor. "from
"
"To"
action/response

- Draw a neuron and label its part. Describe the function of each part of the neuron.

- List the five neuroglial cells, describe their functions
Microglia-Phagocytosis (Cleaning)
brain barrier CNS
and where each one is found in the NS.
Cells-myelinate CNS Schwann axons PNS
Astrocytes-blood
-
-
-




Ogliodendrocytes
-

MyNature axons-CNS Ependymal-Produce
CSF
Circ .
-CNS Satellite cells -


Support
PNS neurons -

PNS


- What is myelination? What are its effects? What is saltatory conduction?
Lipid wrapping of axon .




speeds up -
AP jumps btwn nodes

- List the types of ion channels present in the membrane of a neuron. Make sure to describe what causes
Mechanically gated Opens from
:
Leak channel
each type of gate to open/close. Ligand gated always open
-




Opens physical distortion - when NT binds .




Voltage gated
-

Opens at
specifice
- What arerout
the roles of the Na-K pump? What and how many ions do these pumps pump?
maintains
resting potential
BNAT for every LKT
.




in

- What is a local, or graded potential?
small localized changes in membrane potential
can de or
hyper polarize if threshold is met leads to AP
- Describe the events (steps) of an action potential.




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