How can we help?

You can also find more resources in our Help Center.

31 terms

Nervous System

A&P 1 John Barber
STUDY
PLAY
Neuroglial Cells
Cells that perform support functions for nerves.
Somatosensory
Somato motor Sensation of the muscle activity/Sensory Motor
How many Cranial Nerves do you have?
12
Sympathetic
Fight/Flight
Parasympathetic
Rest and digest "Eat food and fall asleep"
Enteric
Nervous system dedicated to the digestive trac
What is the meaning of Grey Matter
Nerve Cell body
Axon: Hillock
Where action potential starts
Axon: Terminals
End of Axon
Axon: Myelin Sheath (White Matter)
Fatty insulation around Axon and Dendrite
Axon: Schwann
Produce Myelin Sheath aka neurolemma cells in the PNS
Axon: Neurolemmal cells
Outer most layer of the Myolin sheath
Axon: Nodes of Ranvier
naket spot in the Axon. Non Mylated gaps
Gliocyloma
Brain Cancer. Glio cell out of control
Encephalitis
Infection for nerve cells in brain tissue
Meningitis
Inflammation of the menniges
Hydrocephalus
Water on brain. Blockage of duct system
Microglial cells
small cells that phagocytize bacterial cells and cellular debris
Ependymal Cells
Occur in clusters called Choroid Plexus. Produce cerebreal spinal fluid (CSF). CSF bathes the CNS
Astrocytes
Form blood barrier
Oligodendrocytes
Make myelin sheath within the CNS
Meninges
3 Layers of tissue which surround the CNS.
1. Dura Layer - Tough Layer
2. Arachnoid- Middle Layer
2a. Subarchnoid-Area between Pia and Arachnoid contains fluid
3. Pia- Intimately attached to CNS
Types of Meningitis and treatment
Bacterial -Antibiotics
Viral - Pallative care.
Symptoms of Meningitis
Fever/Head aches/ light sensitive/lifting head causes pain
Lateral Grey Horn
Where sympathetic nerve cell bodies are located (T1-L2
Pre Ganglionic neurotransmitters secret what?
ACH
Post Ganglionic neurotransmitters secret what?
ACH and Epinephrine
Adrenal Medulla
Fight/Flight - Secret adrenaline. Combination of epinephrine and norepinehrine
Alpha receptors react to what? what do they do?
React to Norepinephrine and regulate blood vessel dialation.
Beta receptors react to what? what do they do?
React to Epinephrine. Reduce the heart pump.
SSRI
Selective Serratonin Reuptake Inhibitor. Decreases rate of Serratonin break down in brain. Makes serratonin last longer.