Nervous System

Question 1

Neuroglia that fight infections in the CNS

Answer 1

Microglia

Question 2

Neuroglia that make up the myelin sheath

Answer 2

Oligodendrocytes

Question 3

The pathway a nerve impulse travels after leaving the cell body of a neutron

Answer 3

Axon

Question 4

Create a supportive framework for neurons

Answer 4

Neuroglia

Question 5

Neuroglia in the PNS that support cell bodies

Answer 5

Satellite cells

Question 6

Neurons with many processes; most of your neurons are this type

Answer 6

Multipolar neurons

Question 7

Neuroglia that maintain cerebrospinal fluid

Answer 7

Ependymal cells

Question 8

Allows the nerve impulse to jump, moving more quickly

Answer 8

Nodes of Ranvier

Question 9

Involuntary muscle control

Answer 9

Autonomic Nervous system

Question 10

Neurons with 1 process

Answer 10

Unipolar Neurons

Question 11

Neurons with 2 processes

Answer 11

Bipolar Neurons

Question 12

Voluntary muscle control

Answer 12

Somatic nervous system

Question 13

Send impulses away from the CNS

Answer 13

Efferent Nerves

Question 14

Part of the neuron that receives the nerve impulse from senses

Answer 14

Dendrites

Question 15

Send impulses towards the CNS

Answer 15

Afferent nerves

Question 16

All nerves other than the brain and spinal cord

Answer 16

Peripheral Nervous System

Question 17

Made up of the brain and spinal cord

Answer 17

Central Nervous System

Question 18

Neuroglia in the PNS that produce myelin sheaths

Answer 18

Schwann cells

Question 19

Neuroglia that wrap around capillaries

Answer 19

Astrocytes

Question 20

Electrical signal that travels along the neuron

Answer 20

Nerve Impulse/action potential

Question 21

A Neurons resting intracellular space

Answer 21

Negatively charged

Question 22

Sodium rushes into the neuron and quickly reverses

Answer 22

Depolarization

Question 23

Potassium diffusing out of the Neuron

Answer 23

Repolarization

Question 24

Restores ion concentrations to Normal (refractory period)

Answer 24

Sodium Potassium pump

Question 25

Impulse stimulates these to release neurotransmitters into synapse

Answer 25

Vesicles

Question 26

3 layers of connective tissue that protect the CNS

Answer 26

Meninges

Question 27

Thick, tough layer of meninges

Answer 27

Dura Mater

Question 28

Thin, cobweb-like layer

Answer 28

Arachnoid Membrane

Question 29

Thin layer with lots of blood vessels

Answer 29

Pia Mater

Question 30

Surface layer of layers around the brain

Answer 30

Skin

Question 31

Second layer which is surrounding bone

Answer 31

Periosteum

Question 32

Third layer (hard material)

Answer 32

Bone

Question 33

Fourth layer that is thick and tough- meninge

Answer 33

Dura Mater

Question 34

Fifth layer- cobweb like meninge

Answer 34

Arachnoid Layer

Question 35

Sixth layer with lots of blood vessels, clings onto the brain

Answer 35

Pia Mater

Question 36

Between Arachnoid and Pia Mater layers

Answer 36

Cerebrospinal Fluid

Question 37

How does CSF Protect the brain

Answer 37

Prevents it from contacting the skull

Question 38

What does CSF maintain

Answer 38

Blood Brain Barrier

Question 39

What does the Blood Brain Barrier do

Answer 39

Maintains homeostasis and prevents infection

Question 40

Where is CSF produced

Answer 40

Ventricles

Question 41

What secretes the CSF

Answer 41

Choroid Plexus

Question 42

Reabsorbes CSF

Answer 42

Arachnoid Granulations

Question 43

Connects lateral and Third ventricle

Answer 43

Foramen of Monro

Question 44

Cerebrum is divides into 2 hemispheres- right and left divides by

Answer 44

corpus callosum

Question 45

Superficial layer of the brain- Gray matter

Answer 45

Cerebral Cortex

Question 46

Middle- second layer of the brain- White matter

Answer 46

Cerebral Medulla

Question 47

Islands of Gray matter- deepest layer

Answer 47

Basal Nuclei

Question 48

Lobe controlling voluntary movements, reasoning, decision making, communication, and memory

Answer 48

Frontal Lobe

Question 49

Sensations, visual spatial processing, body position

Answer 49

parietal