Cells + Structure Flashcards
How many Neurons are there in the body?
85-96 Billion
What are the 4 zones?
Input Zone
Integration Zone
Conduction Zone
Output Zone
What are the 6 types of Neurons?
Sensory
Motor
Interneuron
Unipolar
Bipolar Neuron
Multipolar
What is the Soma?
Cell Body
Name 3 things the soma does
Produces Energy
Synthesises Protein
Ships and Reciveces Neurotransmitters
Integrates incoming messages
Where is the Nuecleus found?
Soma/Cell body
What are the 4 main structures in the Cell Body?
Nucleus
Mitochondria
Ribosomes
Golgi Apparatus
What connects the axon to the cell body?
The Axon Hillock
What extends throughout the cell body and keeps it in proper shape?
Microtubles
The Axon Hillock sends messages as well as works with the ____ to determine outgoing messages.
Some/Cell body
Where are the terminal buttons found?
The Axon
What is the Myelin?
Insulation around the Axon
What can happen if the myelin is missing?
This can be a leading part of Degenerative disorders/diseases.
What part of the cell receives messages from other cells?
Dendrite
The Dendrite passes messages to ____
Soma
What part of the cell has receptors?
Dendrite
What are the functions of the Cell Membrane?
Surrounds and Protects the Cell
The cell’s security (checks incoming and outgoing messages)
What are 3 of the structures in the Cell Membrane?
Lipid Bilayer
Proteins
Channel
Receptors
Pump
Enzyme
The Channels are ____ and the Pump is _____
Passive; Energy
What is the Synapse?
Space between cells
What is the Presynaptic Terminal?
A specialized region of axons where synaptic vesicles cluster
What type of cells support the other cells?
Glial Cells
What are the Glial Cells?
Nerve Glue
How many Glial Cells are there?
85-145 Billion
What is a type of Glial Cells?
Astrocytes
What do Astrocytes do?
Insulate Neurons
Transport Nutrients to Neurons
Remove Waste
Essentially, it builds scar tissue within the brain
