Nervous System Flashcards
What are the three types of neurones
Sensory
Motor
Inter
What are the three types of glia in both PNS and CNS
PNS
- satellite
- Schwann
- microvglia
CNS
- astrocytes
- oligodendrocytes
- microglia
What are the layers of the meninges and what makes the leptomeninges
Dura matar
Arachnoid
Pia matar
All meninges but bottom two are lepto
What are the three functions of CSF
- oxygenate and give nutrients
- remove metabolites
- exert hydrostatic pressure
Name sections in CNS
Spinal Brain - forebrain - tel / di - midbrain - mes - hindbrain - met / mye
What are the other names for the outflow of sympathetic and parasympathetic system
Sympathetic - thoraco-lumbar outflow
Parasympathetic - cranio-sacral outflow
What is the layout and neurotransmitters associated with parasympathetic
Long pre-ganglion
Acetylcholine - nictinice receptor - acetylecholine - muscarinic receptor
What is the layout and main neurotransmitters in sympathetic system
Long post-ganglion
Acetylecholine - nictotinic - noradrenaline - aloha or beta receptors
What are the two nerve cells
Glia - 90%
Neurons - 10%
What are the three classes of neutrons
Sensory
Motor
Inter
What are the main features features of a neuron and give information of each
Cell body
- engine of neuron
- contains nucleus nissle and golgie
- some have dendrites
Axon
- sums all inputs
- all or none electrical event - action potential
- depolirastion of terminal leads to neurotransmitter release
An axon
