Neuro System Flashcards
Myelinated Cells Acronym?
COPS
CNS:Oligodendrocytes PNS:Schwann cells
____ Na+ out, ___ K+ in
3 Na+
2 K+
Ependymal cells produce ________ which cushions the CNS.
cerebrospinal fluid (CSF)
Outermost to innermost meninges acronym
DAP = dura → arachnoid → pia
Parasympathetic nervous system effects through the ______ nerve
vagus
What does the Sympathetic NS do to the eyes?
Dilation of the pupil
Which part of the ear takes in sound waves?
The outer ear
Which part of the ear transfers sound waves?
Where does it transfer them to?
the tympanic membrane
from outer ear to middle ear!
What is the middle ear composed of?
3 bony ossicles
Malleus, incus, & stapes
_______ transfer vibrations through the ______ ear and amplify the signal
ossicles, middle
The _______ transfers the vibrations from the _____ to the _______ ear via the oval window.
stapes
middle to inner
Through what structure does the stapes transfers vibrations from the middle ear to the inner ear?
The oval window
* its attached to the oval window *
The ______ uses _____ and ______ to convert the mechanical signal into a neuronal signal, known as transduction.
cochlea, fluid and hairs
Round window
Located where?
Helps fluid do what?
Membrane covered opening
Between the middle ear and the inner ear
Helps fluid expand & vibrate
Semicircular canal
Has what?
Main function?
Has fluid and hairs
Gives information about the person’s movement & dizziness
