Myelin – a soft, white substance that surrounds certain neurons' axons in a thick layer and is mostly made of
lipids (including cerebroside and cholesterol), water, and trace quantities of protein
Amine – any of a group of fundamental organic compounds created by substituting one or more monovalent
hydrocarbon radicals for hydrogen in ammonia
Spinal – involving, resembling, or being close to the spinal column
Exercises 1: Read the following words and guess their meaning:
sea sponge, jellyfish, neuron, Flatworm, decentralize, lobe, vertebrate, Mollusk, extend, peripheral
sensory, motor nerve, cord, ventral, dorsal, electrical wire, lobster, behavior, cellular component,
unique.
During Reading
B. Focus on a Reading strategy While reading article #1 and #2, complete a simple Venn diagram
that highlights the differences between a simple nervous system in
an organism with a complex nervous system such as in human
beings. Feel free to use words, sentences and pictures to share your
ideas.
Article #3 – write a summary statement about the endocrine system
in human beings that includes the following vocabulary: hormones,
communication, coordination, systems, organs, circulation
Post-Reading
C. Review of Key concepts Discuss with a partner what you think might be the consequences of various malfunctions in the nervous or
endocrine system. What diseases or injuries have you heard of and what were the symptoms as these
systems begin to fail? Be prepared to share what you have talked about during our whole class discussion in
3 minutes.
7.4 VIDEO RESOURCES Video #1: A Comparative Study of Invertebrate Nervous System:
https://youtu.be/V8hERTVlFsQ
Video #2: The Peripheral Nervous System:
https://youtu.be/pDr6DDRHvUY
Video #3: Hormones in Animals:
https://youtu.be/SURg1JqJ0p0
