Ch 9.2 Nervous System; Brain and Cranial Nerves Flashcards by Alisha :D

How much does the adult brain weigh?

3 pounds

How well did you know this?

Not at all

Perfectly

Name the three major regions of the brain:

cerebrum
brainstem
cerebellum

How well did you know this?

Not at all

Perfectly

The cerebrum is about ___ % of the brain and consists of two ____ hemispheres

80%

cerebral

How well did you know this?

Not at all

Perfectly

responsible for memory, intellect, concentration, problem solving, emotion, planning and execution of behavior, voluntary motor control of muscles

frontal lobe

How well did you know this?

Not at all

Perfectly

area of brain behind forehead

frontal lobe

How well did you know this?

Not at all

Perfectly

area of brain above the ear

parietal lobe

How well did you know this?

Not at all

Perfectly

receives and interprets sensations of pain, pressure, touch, temperature, and body part awareness

parietal lobe

How well did you know this?

Not at all

Perfectly

posterior two-thirds of cerebral hemispheres

located behind the ear

temporal lobe

How well did you know this?

Not at all

Perfectly

involved in interpreting sensory experiences, sounds, and spoken words

temporal lobe

How well did you know this?

Not at all

Perfectly

posterior area of brain

occipital lobe

How well did you know this?

Not at all

Perfectly

interprets visual images and the written word

occipital lobe

How well did you know this?

Not at all

Perfectly

cerebral cortex contains ___% of all the neurons in the nervous system

70%

How well did you know this?

Not at all

Perfectly

most posterior area of the brain

coordinates skeletal muscle activity to maintain posture and balance

cerebell-um

How well did you know this?

Not at all

Perfectly

region of the brain that includes thalamus, pineal gland, pons, fourth ventricle, medulla oblongata

brainstem

How well did you know this?

Not at all

Perfectly

relays sensory impulses from peripheral nerves to higher brain centers
controls cardiovascular and respiratory functions

brain stem

How well did you know this?

Not at all

Perfectly

cerebell

little brain

How well did you know this?

Not at all

Perfectly

cerebr

brain

How well did you know this?

Not at all

Perfectly

bridge of nerve fibers connecting the two cerebral hemispheres

corpus callos-um

How well did you know this?

Not at all

Perfectly

callos

thickening

How well did you know this?

Not at all

Perfectly

gray covering of cerebral hemispheres

cortex
cortical (adj)
Latin; shell

How well did you know this?

Not at all

Perfectly

rounded elevation on the surface of the cerebral hemispheres

ridges

gyrus
gyri (pl)
Greek circle

How well did you know this?

Not at all

Perfectly

occipit

back of head

How well did you know this?

Not at all

Perfectly

pariet

wall

How well did you know this?

Not at all

Perfectly

groove on the surface of the cerebral hemispheres

separates gyri

sulcus
sulci (pl)
Latin; furrow, ditch

How well did you know this?

Not at all

Perfectly

tempor

temple, side of head

cross over like the arms of an "X"

decussate | Latin; to make in the form of a cross

Area of gray matter forming part of the walls and floor of the third ventricle

hypo-thalam-us

hypo-

below

thalam

thalamus

-us

pertaining to

pertaining to the system which controls vital functions of breathing, heart beat, blood pressure

limbic | Latin; border

most posterior subdivision of the brainstem, continuation of the spinal cord

medulla oblong-ata

medulla

middle

oblong

elongated

-ata

place

relays sensory information from the peripheral nerves to different areas of the brain

pons | Latin; bridge

fine network of cells in the medulla oblongata

reticul-um | reticul-ar (adj)

-um

structure

reticul

fine net

relays sensory information to the cerebral cortex

thalamus | Greek; inner room

a cavity of the heart or brain

ventricle | Latin; belly

ventricul

ventricle

-ar

pertaining to

regulates BP, body temp, water and electrolyte balance, hunger, sleep/wake, movement of GI tract

hypo-thalam-us

aid in controlling the amplitude of voluntary muscular movement and posture; plays part in emotion and cognition

basal nuclei

Name the two major areas of the brainstem

pons | medulla oblongata

controls visceral activities, HR, breathing, vasoconstriction/dilation, arouse cerebral cortex into wakefulness

medulla oblong-ata

Name cranial nerves 1-3 | Only Owls Observe Them Traveling And Finding Voldemort Guarding Very Secret Horcruxes

I- Olfactory nerves II- Optic nerves III- Oculomotor nerves

Name cranial nerves 4-6 | Only Owls Observe Them Traveling And Finding Voldemort Guarding Very Secret Horcruxes

IV- Trochlear nerves V- Trigeminal nerves VI- Abducens nerves

Name cranial nerves 7-9 | Only Owls Observe Them Traveling And Finding Voldemort Guarding Very Secret Horcruxes

VII- Facial nerves VIII- Vestibulocochlear (auditory) nerves IX- Glossopharyngeal nerves

Name cranial nerves 10-12 | Only Owls Observe Them Traveling And Finding Voldemort Guarding Very Secret Horcruxes

X- Vagus nerves XI- Accessory nerves XII- Hypoglossal nerves

_ cranial nerve; responsible for eye movement

VI- abducens | Latin; abduct, draw away from

_ cranial nerve; supplying neck muscles, pharynx, and larynx

XI- accessory | Latin; move toward

pertaining to the sense of or the organs of hearing

audit-ory

audit

hearing

-ory

having the function of

pertaining to the skull

cranial

crani

skull

_ cranial nerve; supplying the forehead, nose, eyes, mouth, and jaws

VII- facial | Latin; face

_ cranial nerve; supplying the tongue and pharynx

IX; gloss/o-pharyng-eal

-eal

pertaining to

gloss/o

tongue

pharyng

pharynx

_ cranial nerve; supplying muscles of the tongue

XII; hypo-gloss-al

hypo-

below, under

gloss

tongue

_ cranial nerve; moves the eye

III- ocul/o-mot-or

ocul/o

eye

mot

move

-or

doer

_ cranial nerve; carries information related to the sense of smell

I- olfact-ory

olfact

smell

_ cranial nerve; carries visual information

II- opt-ic

opt

eye

-ic

pertaining to

_ cranial nerve; sensory and motor nerves responsible for face, nose, and mouth sensations and for chewing

V- tri-gemin-al

gemin

double, twin

_ cranial nerve; supplies muscle of the eye for movement

IV- trochle-ar

trochle

pulley

_ cranial nerve; supplies many different organs throughout the body

X- vagus | Latin to wander

_ cranial nerve; carrying information for hearing and balance

VIII- vestibul/o-cochle-ar

vestibul/o

vestibule of inner ear

cochle

cochlea

cervical region

C1-C8

thoracic region

T1-T12

Lumbar region

L1-L5

sacral region

S1-S5

spinal cord extends from base of skull to _

first lumbar vertebra

Three layers of the meninges

Dura mater Arachnoid mater Pia mater

CSF is contained in the

subarachnoid space

web-like middle layer of the three meninges

arachn-oid mater

arachn

cobweb, spider

mater

mother

-oid

resembling

bundle of spinal nerves in the bottom one third of the vertebral canal; below ending of spinal cord

caud/a equin/a

caud/a

tail

equin/a

horse

cervic

neck

The area of skin supplied by a single spinal nerve; also an instrument used for cutting thin slices

derm/a-tome

derm/a

skin

-tome

instrument to cut

hard, fibrous outer layer of the meninges

dur/a mater

dur/a

hard

above the dura

epi-dur-al

dur

dura mater

the space between two vertebrae

inter-vertebr-al

inter-

between

pertaining to the region in the back and sides between the ribs and pelvis

lumbar | Latin loins

three layered covering of the brain and spinal cord

meninges | Greek membrane

delicate inner layer of the meninges

pia mater

pia

delicate

sacr

sacrum

space between the pia mater and the arachnoid mater

sub-arachn-oid

sub-

under

-oid

resembling

pertaining to the chest

thorac-ic

thorac

chest

bundle of nerve fibers with common origin and destination

tract | Latin draw out