Nervous System

Question 1

Function of the Nervous System

Answer 1

To detect impulses from the body, control center of the body

Question 2

Major Organs of Nervous System

Answer 2

Brain, Spinal Cord, Senses, and nerves

Question 3

Difference between Neurons and Neuroglia

Answer 3

Neurons are nerve cells with specialized functions that create and conduct nerve impulses. Neuroglia are support cells that help with physical activity, debris removal, and electrical insulation.

Question 4

Dendrite

Answer 4

receive the nerve impulses from the senses or another neuron

Question 5

Soma

Answer 5

body of the neuron that holds the nucleus

Question 6

Schwann Cells

Answer 6

The myelin sheath is formed by glial cells in the peripheral nervous system wrapping around the axons of motor and sensory neurons.

Question 7

Node of Ranvier

Answer 7

impulses jump from node to node, which increase speed of impulse

Question 8

Myelin

Answer 8

insulates the axon. Produced by the Schwann cells

Question 9

Axon

Answer 9

passageway for nerve impulses after cell body; end in axon terminal

Question 10

Axon Terminal

Answer 10

the button-like endings of axons through which axons make contact with other nerve cells.

Question 11

CSF

Answer 11

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

Question 12

Cerebrum

Answer 12

initiates and coordinates movement and regulates temperature

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

medulla oblongata

Answer 17

where the brain stem connects the brain to your spinal cord

Question 18

midbrain

Answer 18

the connection central between the brain and the spinal cord.

Question 19

pons

Answer 19

generating the respiratory rhythm of breathing

Question 20

cerebellum

Answer 20

responsible for coordinating voluntary movements.

Question 21

spinal chord

Answer 21

which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column

Question 22

merkel’s disk

Answer 22

touch

Question 23

hair follicle receptor

Answer 23

touch

Question 24

ruffini’s corpuscle

Answer 24

touch and pressure

Question 25

pacinian corpuscle

Answer 25

pressure

Question 26

free nerve ending

Answer 26

pain and temperature

Question 27

Papillae

Answer 27

tastebuds, on the tongue regulating sense of taste

Question 28

incus anvil

Answer 28

a small anvil-shaped bone in the middle ear,

Question 29

malleus hammer

Answer 29

a small anvil-shaped bone in the middle ear,

Question 30

stirrup stapes

Answer 30

the smallest and most medial of the three middle ear ossicles.

Question 31

cochlea

Answer 31

is the part of the inner ear involved in hearing.

Question 32

cornea

Answer 32

your eye’s clear, protective outer layer.

Question 33

pupil

Answer 33

the black circle in the center of the iris.

Question 34

iris

Answer 34

The colored tissue at the front of the eye that contains the pupil in the center.

Question 35

retina

Answer 35

The retina is an essential part of the eye that enables vision.

Question 36

lens

Answer 36

lens focuses light onto the retina