Nervous System Flashcards
1
Q
CNS
A
Central Nervous System
2
Q
PNS
A
Peripheral Nervous System
3
Q
Cephal/o
A
Head
4
Q
Cerebell/o
A
Cerebellum
5
Q
Cerebr/o
A
Cerebrum
6
Q
Encephal/o
A
Brain
7
Q
Gli/o
A
Glue (Supporting Cells)
8
Q
Medull/o
A
Medulla Oblongata
9
Q
Mening/o
Meninge/o
A
Meninges
10
Q
Myel/o
A
Spinal Cord
11
Q
Neur/o
A
Nerve
12
Q
Phas/o
A
Speech
13
Q
Poli/o
A
Gray Matter
14
Q
Pont/o
A
Pons
15
Q
Radicul/o
A
Nerve Root
16
Q
Thalam/o
A
Thalamus
17
Q
Thec/o
A
Sheath (Meninges)
18
Q
Ventricul/o
A
Brain Ventricle
19
Q
-algesia
A
Pain, sensitivity
20
Q
-esthesia
A
Feeling, Sensation
21
Q
-paresis
A
Weakness
22
Q
-phasia
A
Speech
23
Q
-plegia
A
Paralysis
24
Q
-taxia
A
Muscle Coordination
25
Neuroglial Cells
Non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons.
26
12-15 Billion
Number of neurons in the cerebral cortex
27
70 Billion
Number of neurons in the cerebellum
28
1 Billion
Number of neurons in the spinal cord
29
Neurons
Individual cells that conduct electrical impulses, sending them in response to stimuli.
Unable to divide, making them irreplaceable.
30
Dendrites
Branch like projections that "catch" electrical impulse sent from the previous sell's axon. Typically short, intended to catch as much information as possible.
31
Nerve cell body
Holds the nucleus of the cell, contains genetic material of the cell.
32
Axon
"Tail" of neuron, messages are sent down the axon to the terminal ends. Singular axon for each
33
Axon Terminals
Transmitter of electric impulses, located at the end of the axon
34
Neuroglial Cells
Cells that act as the neurons' support system provides protection and nourishment. Capable of mitosis (cell division)
