nervous system

Question 1

FUNCTION OF NERVOUS SYSTEM

Answer 1

detect impulses from senses aka control n=center of the body

Question 2

MAJOR ORGANS OF NERVOUS SYSTEM

Answer 2

BRAIN,SPINAL CORD,SENSES,NERVES

Question 3

NEURONS VS NEUROGLIA

Answer 3

Neurons= highly specialized nerve cells that generate and conduct nerve impulses
Neuroglia= cells that provide physical sport, remove debris, and provide electrical insulation.

Question 4

Dendrite

Answer 4

receive impulses from senses

Question 5

Soma

Answer 5

body of neuron

Question 6

Schwann Cells

Answer 6

allow sheath to insulate axon

Question 7

Node of Ranvier

Answer 7

increase impulse speed

Question 8

Myelin Sheath

Answer 8

insulate axon

Question 9

Axon

Answer 9

nerve impulse passageway

Question 10

Axon Terminal

Answer 10

button like endings, sends messages to other nerves cells

Question 11

CSF

Answer 11

The fluid that flows in and around the hollow spaces of the brain and spinal cord, and between two of the meninges

Question 12

Cerebrum

Answer 12

initiates and coordinates movement and regulates temperature. Other areas of the cerebrum enable speech, judgment, thinking and reasoning, problem-solving, emotions and learning.

Question 13

cerebral lobes

Answer 13

frontal, parietal, temporal and occipital

Question 14

thalamus

Answer 14

relay motor and sensory signals to the cerebral cortex.

Question 15

hypothalamus

Answer 15

the control of the body’s temperature and energy maintenance

Question 16

brainstem

Answer 16

breathing, consciousness, blood pressure, heart rate, and sleep

Question 17

3 brainstem regions

Answer 17

medulla oblongata, midbrain, and pons

Question 18

cerebellum

Answer 18

responsible for coordinating voluntary movements. It is also responsible for a number of functions including motor skills such as balance, coordination, and posture

Question 19

spinal cord

Answer 19

connects your brain with the rest of your body, allowing you to control your movements

Question 20

hair follicle receptor

Answer 20

respond better to something brushing across the skin rather than pressure.

Question 21

merkel’s disc

Answer 21

respond to indentation of the skin

Question 22

ruffini’s corpuscle

Answer 22

Touch, pressure, proprioception

Question 23

pacinian corpuscle

Answer 23

detect gross pressure changes and vibrations in the skin

Question 24

anvil (incus)

Answer 24

in the middle of the chain of bones

Question 25

hammer (malleus)

Answer 25

ransmits the sound vibrations from the eardrum to the incus

Question 26

stapes (stirrup)

Answer 26

attached to the membrane-covered opening that connects the middle ear with the inner ear

Question 27

cochlea

Answer 27

receives sound vibrations

Question 28

cornea

Answer 28

helps focus light into the eye so that you can see

Question 29

pupil

Answer 29

pupil of the eye is a portal which admits and regulates the flow of light to the retina

Question 30

iris

Answer 30

opens and closes according to brightness

Question 31

retina

Answer 31

receive and organize visual information. Your retina sends this information to your brain through your optic nerve

Question 32

lens

Answer 32

bend the light to focus properly on the retina

Question 33

Farsighted

Answer 33

inability to focus on close objects

Question 34

free nerve

Answer 34

afferent nerve fiber sending its signal to a sensory neuron

Question 35

optic nerve

Answer 35

connects retina to the brain

Question 36

nearsighted

Answer 36

ability to only be able to focus on close objects

Question 37

Neurons

Answer 37

highly specialized nerve cells that generate and conduct nerve impulses

Question 38

Neuroglia

Answer 38

cells that provide physical sport, remove debris, and provide electrical insulation

Question 39

medulla

Answer 39

transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities

Question 40

papillae

Answer 40

tongue