chhapter10 Flashcards by Callie Gits

Reflex arc

A simple fast and predictable response to help protect the body

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A simple fast and predictable automatic response to help protect the body

reflex arc

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A cluster of sensory neuron cell bodies

posterior root ganglion

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posterior root ganglion

a cluster of sensory neuron cell bodies

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Bones of the spine that enclose and protect the spinal cord

vertebrae

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vertebrae

bones of the spine that enclose and protect the spinal cord

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In a reflex arc, the muscle or gland that responds with an action

effector

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effector

In a reflex arc, the muscle or gland that responds with an action

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A group of lumbar, sacral, and coccygeal nerves that branch off the lower end of the spinal cord

cauda equina

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cauda equina

a group of lumbar, sacral, and coccygeal nerves that branch off the lower end of the spinal cord

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pia mater

the innermost layer of mennings that is attached to the spinal cord and the brain

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the innermost layer of menings that is attached to the brain and spinal cord

pia mater

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receptor

structure that responds to some environmental changes and initiates a sensory response

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A structure that responds to some environmental changes and initiates a sensory response

receptor

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central canal

Opening that runs lengthwise through the spinal cord; CSF circulates through it

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Opening that runs lengthwise through the spinal cord; CSF circulates through it

central canal

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subdural space

lymphatic fluid filled space between the arachnoid and the dura mater

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Lymphatic fluid-filled space between the arachnoid and dura mater

subdural space

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motor neuron

reflex arc that sends the impulse to a muscle or gland

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reflex arc that transmits the impulse to a muscle or gland

motor neuron

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gray matter

matter within the spinal cord shaped like an “H”

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the matter within the spinal cord shaped like an ‘‘H’’

gray matter

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epidural space

fat-filled space between the vertabrae and the dura mater

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fat-filled space between the vertebrae and the dura mater

epidural space

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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

subarachnoid space

filum terminale

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

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

columns

arachnoid

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