A glossary of all the key words within the topic of The Nervous system. The Key words are highlighted in Pink alongside a detailed description/definition.
For example:
Neuroglia = They support, nourish and protect the neurons & maintain interstitial fluid, bathing the neurons
I recommend...
Answer: - Support, Nourish and Protect the neurons
- Maintain Interstitial fluid, bathing the neurons
5.
What are Nissl Bodies?
Answer: Clusters of RER (rough endoplasmic reticulum) and free ribosomes
6.
What is a Telodendria?
Answer: Where the axon and collaterals end
7.
What are collaterals?
Answer: Branches of the axon
8.
What does the axon contain?
Answer: Axoplasm
9.
What Is the role of the myelin sheath?
Answer: Insulate the axon to increase speed of conduction
10.
Briefly describe the structure of a Multipolar Neuron
Answer: 1 Axon and many Dendrites
Content preview
The Nervous System
Glossary
CNS (Central Nervous System) = Brain & Spinal Cord
PNS (Peripheral Nervous System) = Cranial Nerves, Spinal Nerves, Ganglia,
Enteric plexuses and sensory receptors
Neurons = Responsible for main nervous system functions
Neuroglia = They Support, nourish and protect the neurons & maintain
interstitial fluid bathing the neurons
Nissl Bodies = Clusters of RER & free ribosomes
Telodendria = Where the axon and collaterals end
Collaterals = Branches of the axon
Axon = Contains axoplasm and capable of an action potential
Myelin Sheath = Insulates the axon to increase speed of conduction
Multipolar Neurons = Neurons with 1 axon and many dendrites
Bipolar Neurons = Neurons with 1 axon and 1 main dendrite
Unipolar Neurons = Neurons that start as bipolar neurons, but the axon
and dendrites fuse into a single process
Astrocytes = Maintain chemical environment for an action potential,
provide nutrients to neurons & form part of the blood-brain barrier
Oligodendrocytes = Support network around CNS neurons & produce
myelin sheath
Microglia = Protects the CNS cells from disease by phagocytes & migrate
to areas of injury
Ependymal Cells = Produce & help circulate cerebral spinal fluid
Satellite Cell = Structural support & regulates exchange between cells and
interstitial fluid
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller esmagness. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.49. You're not tied to anything after your purchase.