Download Lesson 2.2: Electrical Communication Essential Questions

Lesson 2.2: Electrical Communication
Essential Questions- Type complete answers to the below questions in 12 point Times New Roman Font single-spaced.
1.
How does communication happen within the body?
2.
What is the basic structure and function of a neuron?
3.
How do the different types of neurons work together to send and receive signals?
4.
How are electrical impulses created in the human body?
5.
How do neurons convey information using both electrical and chemical signals?
6.
Explain the roles of ions in creating electrical impulses in the human body.
7.
Explain how neurotransmitters help propagate electrical impulses.
8.
What factors impact our ability to react to a stimulus?
9.
How and why does reaction time differ in reflex and voluntary actions?
10.
How do errors in communication impact homeostasis in the human body?
11.
How can biomedical professionals help treat, cure and improve the quality of life of those suffering from
nervous system disorders?
Key Terms
Action Potential
Axon
Dendrite
Ion
Myelin sheath
Neurologist
Neuron
Neurotransmitter
Reaction Time
Reflex
Synapse
A momentary reversal in electrical potential across a plasma membrane (as of a nerve
cell or muscle fiber) that occurs when a cell has been activated by a stimulus.
A long nerve cell process that usually conducts impulses away from the cell body.
Any of the usually branching protoplasmic processes that conduct impulses toward the
body of a neuron.
An atom or group of atoms that carries a positive or negative electric charge as a result
of having lost or gained one or more electrons.
In a neuron, an insulating coat of cell membrane from Schwann cells that is interrupted
by nodes of Ranvier.
A physician skilled in the diagnosis and treatment of disease of the nervous system.
A nerve cell; the fundamental unit of the nervous system, having structure and
properties that allow it to conduct signals by taking advantage of the electrical charge
across its cell membrane.
A substance (as norepinephrine or acetylcholine) that transmits nerve impulses across a
synapse.
The time elapsing between the beginning of the application of a stimulus and the
beginning of an organism's reaction to it.
An automatic and often inborn response to a stimulus that involves a nerve impulse
passing inward from a receptor to the spinal cord and thence outward to an effector (as
a muscle or gland) without reaching the level of consciousness and often without
passing to the brain.
The place at which a nervous impulse passes from one neuron to another.
Label the below Neuron Diagram:
Dendrite
Axon
Schwann Cell
Node of Ranvier
Myelin
Cell Body
Nucleus
Axon Terminal
List the steps of the Nerve Impulse (Action Potential) below in DETAIL: