Neuromuscular Part One Flashcards
broca’s area function
controls motor aspect of speech
the precentral and prefrontal cortexes are in the…
frontal lobe
insula: where is it and what does it do
deep within lateral sulcus
associated with visceral fucntions
what does the dura mater form
falx tentorium
(carotid system)
brain blood flow starting with common carotids
common carotids
->
internal carotids
->
anterior/middle cerebral arteries
what does the longititudinal cerebral fissure divide
two hemispheres
sacral plexus levels
L4-S3
the central sulcus divides
frontal
from
parietal
afferent neurons AKA
sensory
limbic system function
instincts and emotions (preservation of the individual)
gyri are…
crests
sulci are…
fissures
occipital lobe function
primary visual cortex (receives/processes visual stimuli)
Lumbar plexus levels
T12-L4
brachial plexus levels
C5-T1
function of prefrontal cortex
controls emotions and judgements
what does the subarachnoid space contain
CSF
posterior horns contain _____ neurons
afferent
the cerebral hemispheres are made of
convolutions of gray matter
cervical plexus levels
C1-C4
broca’s area is in…
frontal lobe
what is Wernicke’s area for
language comprehension
Wernicke’s area is in the…
temporal lobe
efferent neurons are AKA
motor neurons
the type of nerve fiber that is not myelinated and is slowest conducting
C
what is an action potential in terms of ions
more Na+ in the cell
more K+ out of the cell
the gray matter that the cerebral hemispheres are made of…
gyri
sulci
what is the arachnoid mater
delicate & vascular membrane
what level of the spine does the spinal cord end
L1
what does pia mater form
tela choroidea of ventricles
what are dendrites
receptive surface area to receive info
CSF functions
provides mechanical support (cushions brain)
controls brain excitability (by regulating ionic composition)
aids in exchange of nutrients and waste
what does the third ventricle communicate with and how does it get there
fourth ventricle
cerebral aqueduct
(vertebrobasillar system)
brain blood flow starting with subclavian arteries
subclavian
–>
vertebral arteries
–>
basillar artery
–>
PCA
what cranial nerves are purely sensory
1
2
8
three meninges of the brain
dura mater
arachnoid mater
pia mater
function of the postcentral gyrus
primary sensory cortex for integration of sensation
three main types of nerve fibers
A
B
C
describe all types of A nerve fibers
Alpha - proprioception, somatic motor
Beta - touch, pressure
Gamma - motor to muscle spindles
Delta - pain, temperature, touch
resting membrane potential of a neuron
-70 mV
temporal lobe function
primary auditory cortex (receives and processes auditory stimuli)
what are axons
conduct impulses away from cell body
what do the lateral ventricles communicate with and how do they get there
third ventricle
foramen of monro
anterior horns of the spinal cord give rise to _____ neurons
efferent (motor)
where is CSF produced
choroid plexuses in ventricles
function of precentral gyrus
primary motor cortex for voluntary muscle activation
repolarization results from activation of ___ channels
K+
what does an action potential do to the inside of the neuron
makes it more positive (about +35 MV when all is said and done)
what does the lateral central fissure divide
temporal
from
frontal and parietal
the postcentral gyrus is in…
the parietal lobe
what does the PCA supply
brainstem
cerebellum
occipital lobe
thalamus
