Nervous System

Question 1

What is the basic unit of the nervous system?

Answer 1

Neuron

Question 2

What are the 2 divisions of the nervous system?

Answer 2

Central Nervous System (CNS)

Peripheral Nervous System (PNS)

Question 3

Chemical substances that are released into synapses to relay information are called what?

Answer 3

Neuro-transmitters

Question 4

What is the protective covering over some nerve cells including parts of the spinal cord that acts as an electrical insulator?

Answer 4

Myelin

Question 5

Which cells of the nervous system are responsible for the formation of myelin?

Answer 5

Oligodendrocytes (CNS)
Schwann cells (PNS)

Question 6

What are the interruptions in myelin called that allows nerve impulses to travel quicker and more efficient?

Answer 6

Nodes of Ranvier

Question 7

What is the clear, colorless ultrafiltrate that nourishes, cools, and cushions the CNS?

Answer 7

Cerebrospinal Fluid (CSF)

Question 8

What are the 3 main divisions of the brain?

Answer 8

Cerebrum
Cerebellum
Brainstem

Question 9

Which main division of the brain is the largest part?

Answer 9

Cerebrum

Question 10

What is the space between two neurons or a neuron and a receptor called?

Answer 10

Synapse

Question 11

What is the term used for inflammation of the root of a spinal nerve?

Answer 11

Radiculitis

Question 12

What are meninges?

Answer 12

Three-Layered membrane that lines the CNS

Question 13

What is the division of the autonomic nervous system that is concerned with body functions under emergency or
stress?

Answer 13

Sympathetic

Question 14

What is a network of intersecting nerves called?

Answer 14

Plexus

Question 15

What type of neuron carries impulses away from the CNS and toward the muscles?

Answer 15

Efferent (Motor)

Question 16

What is an automatic, involuntary response to change called?

Answer 16

Reflex

Question 17

What does analgesia mean?

Answer 17

Without Pain

Question 18

What is the term used for inflammation of the gray matter of the spinal cord?

Answer 18

Poliomyelitis

Question 19

What does ataxia mean?

Answer 19

Without Coordination/Stumbling

Question 20

What are knotlike mass of neuron cell bodies in the peripheral nervous system called?

Answer 20

Ganglion

Question 21

What is another term for depressed?

Answer 21

Obtunded

Question 22

What is the term used for inflammation of the membranes surrounding the brain and spinal cord?

Answer 22

Meningitis

Question 23

What is concious proprioceptive deficit commonly called?

Answer 23

Knuckling

Question 24

What is the medical term for crossing?

Answer 24

Chiasm

Question 25

What are small cavities in the brain called?

Answer 25

Ventricles

Question 26

What is the term used for alert?

Answer 26

Concious

Question 27

What does BAR stand for?

Answer 27

Bright/Alert/Responsive

Question 28

What is the term used for a deep state of unconciousness?

Answer 28

Coma

Question 29

What does lethargy mean?

Answer 29

Indifferent/Drowsy

Question 30

What is the term used for when an animal appears to be mentally confused?

Answer 30

Disoriented

Question 31

What is the term used for impaired conciousness with unresponsiveness to stimuli?

Answer 31

Stupor

Question 32

What are cell bodies grouped together outside the CNS called?

Answer 32

Ganglia

Question 33

What is the term used for something that excites or activates?

Answer 33

Stimulus

Question 34

What is soma?

Answer 34

Cell Body

Question 35

What is the term used for a wave of excitation transmitted through nervous tissue?

Answer 35

Impulse

Question 36

What are neuroglia?

Answer 36

Supportive cells of the nervous system

Question 37

What is another term for convulsions?

Answer 37

Seizure

Question 38

What is the neurologic defect in which the animal appears to not know where its limbs are?

Answer 38

CP Deficit/Knuckling

Question 39

What is the medical term for stumbling or without coordination?

Answer 39

Ataxia

Question 40

What does tactile mean?

Answer 40

Touch