My second test Flashcards
what type of central nervous system glial cell regulates interstiatial fluid and helps form the blood brain barrier
astrocyte
most common type of neuron in the body
multipolar neuron
name specific location in the spinal cord where you would expect to find somatic motor nuclei
ventral gray horn
two cranial nerves that innervate one or more of the muscles that move the eyeball
abducens nerve
CNIII
where is the primary somatosensory cortex located in the brain
postcentral gyrus
what is term used to describe a specific region of the body surface that is monitored by a pair of spinal nerves
dermatome
what term is used to describe a collection of neuronal cell bodies in the peripheral nervous system
ganglion
what is the primary function of cranial nerve I
sense of smell
wehre do most upper motor neurons decussate
medulla oblongata
mixed nerve is
nerve contains both sensory and motor neurons
motor neurons exit the spinal cord via the
ventral root
dorsal root ganglia contain the cell bodies of
first order sensory neurons
the brain and spinal cord can generate
motor output in response to sensory input
brain is part of the central NS, but cranial nerves are part of the
peripheral NS
two main divisons of the peripheral NS are the
afferent and efferent
motor efferent divison includes both the
somatic and autonomic
artistic and musical tasks tend to rely on centers in the
right cerebral hemisphere
ALS involes progressive degeneration of
upper and lower motor neurons
memories of learned movment patterns are stored in the
premotor cortex
blink reflex can be called
innate reflex
somatic reflex
cranial reflex
inferior colliculi integrate
sensory info to initate reflex responses to auditory input
somatosensory association are takes up the vast majority of the ____ of the cerebrum
parietal lobe
association fibers are myelinated axons that connect
regions within the same cerebral hemispheres
sensory neuron enters the spinal cord, it is simultaneously synapse with a motor neuron and one or more internuerons this is
divergence
___ are responsible for monitoring neuronal health and phagocytizing microbes and cellular debris in the central nervous sytem
microglia
chemical synapse, neurotransmitters bind to receptors on a neurons
dendrites
cell bodies of third order neurons in snensory tracts are concentrated within the
thalamus
cell bodies of upper motor neurons reside in the
primary motor cortex
inferior tip of the spinal cord is called the
conus medullaris
vagus nerves give rise to the
majority of preganglionic fibers in the parasympathetic nervous system
happen if someone actually lacked a cerebllum
poor coordination of voluntary muscle activity
around the spinal cord, cerebrospinal fluid circulates in a space that is between the
pia mater and arachnoid mater
sciatic and pudendal nerves are branches of the ____ plexus
sacral
following is a response associated with the parasympathetic nervous system
increase in stomach secretions
layer of connectinv tissue surrounding a nerve fascicle is called the
perineurium
cerebral aqueduct connects the ___ to the _____
third ventricle; fourth ventricle
hypothalamus produces
emotions and behavioral drives
hypothalamus helps to monitor and regulate
core body temp
hypothalamus initiates uterine muscles to
contract during labor through production of
hypothalamus subconsciously controls muscles contractions associated with
intense emotions
epinephrine is secreted to increased activity of the
sympathetic nervous system
sympathetic divison of the autonomi nervous system is characterized by
short preganglionic fibers
pons relays info to and from the
cerebellum
pain relief occurs very quickly with a
spinal and more slowly with an epidural
epidurals often involve the use of
a catheter for future doses
spinals must be injected inferior to
L2
spinals are injected into the
subarachnoid space
proprioceptive info conveyed by the spinocerebellar tracts is processed in the
ipsilateral cerebellum
