chhapter10 Flashcards
Reflex arc
A simple fast and predictable response to help protect the body
A simple fast and predictable automatic response to help protect the body
reflex arc
A cluster of sensory neuron cell bodies
posterior root ganglion
posterior root ganglion
a cluster of sensory neuron cell bodies
Bones of the spine that enclose and protect the spinal cord
vertebrae
vertebrae
bones of the spine that enclose and protect the spinal cord
In a reflex arc, the muscle or gland that responds with an action
effector
effector
In a reflex arc, the muscle or gland that responds with an action
A group of lumbar, sacral, and coccygeal nerves that branch off the lower end of the spinal cord
cauda equina
cauda equina
a group of lumbar, sacral, and coccygeal nerves that branch off the lower end of the spinal cord
pia mater
the innermost layer of mennings that is attached to the spinal cord and the brain
the innermost layer of menings that is attached to the brain and spinal cord
pia mater
receptor
structure that responds to some environmental changes and initiates a sensory response
A structure that responds to some environmental changes and initiates a sensory response
receptor
central canal
Opening that runs lengthwise through the spinal cord; CSF circulates through it
Opening that runs lengthwise through the spinal cord; CSF circulates through it
central canal
subdural space
lymphatic fluid filled space between the arachnoid and the dura mater
Lymphatic fluid-filled space between the arachnoid and dura mater
subdural space
motor neuron
reflex arc that sends the impulse to a muscle or gland
reflex arc that transmits the impulse to a muscle or gland
motor neuron
gray matter
matter within the spinal cord shaped like an “H”
the matter within the spinal cord shaped like an ‘‘H’’
gray matter
epidural space
fat-filled space between the vertabrae and the dura mater
fat-filled space between the vertebrae and the dura mater
epidural space
sensory neuron
reflex arc structure that passes the impulse from the receptor to the CNS
Reflex arc structure that passes the impulse from the receptor to the CNS
sensory neuron
posterior (dorsal) root
part of a spinal nerve containing sensory nerve fibers that carry impulses toward the spinal cord
part of the spinal nerve containing sensory nerve fibers that carry impulses toward the spinal cord
posterior (dorsal) root
anterior (ventral) root
part of the spinal nerve containing motor neurons carrying impulses away from the spinal cord
part of the spinal nerve containing motor neurons that carry impulses away from the spinal cord
anterior (ventral) root
dura mater
Hardest outermost layer of the meninges
toughest outermost layer of the meninges
dura mater
subarachnoid space
space between the arachnoid and pia mater containing the CSF
space between the arachnoid and pia mater containing the CSF
subarachnoid space
filum terminale
filament that anchors the inferior portion of the spinal cord
filament that anchors the inferior portion of the spinal cord
filum terminale
integrating center
region in the CNS that contains the motor and sensory neurons portions of the reflex arc
region of the CNS containing both motor and sensory neuron portions of the reflex arc
integrating center
conus medullans
cone shaped tip of the spinal cord
cone shaped tip of the spinal cord
conus medullans
meninges
three connective tissue membranes covering the brain and spinal cord
three connective tissues covering the brain and spinal cord
meninges
columns
tracts of white matter that run up and down the spinal cord
tracts of white matter that run up and down the spinal cord
columns
arachnoid
cobweb like layer of the meninges
cobweb like layer of the meninges
arachnoid
primary motor area
area in the precentral gyrus of the frontal lobe, controls specific muscles or specific groups of muscles
area in the pre-central gyrus of the frontal lobe, controlling specific muscles or specific groups of muscles
primary motor area
primary visual
area in the occipital lobe that permits vision
primary auditory
area in the temporal area that permits hearing
primary olfactory
cerebral area that controls smell
bochas speech area
area in the frontal lobe that translates speech and thoughts
primary somata sensory
post central gyrus area that recieves sensations
common integrative area
cerebral area that integrates general sensations and special ones to form a common thought
clear
color of cerebrospinal fluid
the entire nervous system contains between 1/3 -1/2 cups of CSF or ____ mL
80-150
list functions of cerebrospinal fluid
shock absorbing, composition maintaining, and exchanges toxins
Cranial nerve X: main nerve of parasympathetic nervous system; senses and controls internal organs
vagus
Cranial nerve I: sense of smell
olfactory
Cranial nerve IX: swallowing; taste; sensation from tongue
trigeminal
Cranial nerve XII: proprioception and tongue movement
hypoglossal
Cranial nerve V: chewing, facial sensation
facial
Cranial nerve VI: proprioception and eyeball movement
abducens
Cranial nerve VII: controls facial expressions and taste
facial
Cranial nerve III: control of eye’s lens and pupil
oculmotor
Cranial Nerve IV: proprioception and eyeball movement
trachler
Cranial nerve VIII: hearing and equilibrium
vestibule or cochlear
Cranial nerve II: vision
optic
Cranial nerve XI: swallowing, head and shoulder movement
accessory
CSF is formed by ____ and secretion from blood in capillaries called _____; cells that form it are known as ____.
filtration, choroid plexus, ependymal cells
type of impulses relayed and interpreted by the thalamus
sensory
list the functions of the limbic system
emtotions/ survival behavior/ memory
condition resulting in excessive CSF within the ventricles
hydrocephalus
type of reflexes that the corpora quadrigemina is concerned with
visual and auditory
the brain consumes about ____ amount of your bodies oxegyn
20%
A bridge like struucture from the spinal cord to the upper brain
pons
brain center that regulates the heart and the diameter of blood vessels
cardiovascular
the medulla serves as a conduction pathway for all ascending and descending tracts what type of impulses are transmitted by white matter
motor and sensory
movements on your left are intitated by what part of the brain
right
brain cavities where CSF circulates
ventricles
COrpus callosum
band of white matter connecting the two halves of the cerebrum
recticular activating system
the part of your brain stimulated by your ringing alarm clock
cortex
the outer layer of the cerebrum
cerebellum
part of the brain that coordinates walking, balance, and the ability to speak understandably
gray matter
outermost of the cerebrum is composed of this
ridges that make up the surface of the cerebrum
gyri
hypothalamus functions
olfactry relay, body temp, fluid/food intake, pituitary, sleep, and emotions