NERVOUS SYSTEM- CENTRAL NERVOUS SYSTEM AND PERIPHERY NERVOUS SYSTEM

1. 1
Baseball
The Nervous System

2. 2
• What are the
two major
divisions of the
nervous system?
– Answer:
Central &
Peripheral
• What cells are
the structural &
functional unit
of the nervous
system?
– Answer:
Neurons

3. 3
• The central
nervous system
is composed of
what organs?
– Answer:
Brain & Spinal
Cord
• What composes
the peripheral
nervous system?
– Answer:
Spinal and
Cranial Nerves

4. 4
• What are the
specialized cells
that aid neurons
(by producing myelin &
helping
communication)?
– Answer:
Neuroglia
• What part of the
neuron is the
“receptive
surface”?
– Answer:
Dendrite

5. 5
• Where is the
nucleus located in
the neuron?
– Answer:
Cell Body
• Match the neuroglia with
it’s function.
Microglia
Oligodendrocyte
Astrocyte
Ependymal
•Phagocytosis
•Support
•Form myelin like
Schwann cells
•Form lining in
ventricles

6. 6
• Identify the area
marked with an
arrow in the
picture to the
right.
– Answer:
Corpus callosum

7. 7
• Identify the area
of the brain stem
marked with an
arrow in the
picture to the
right.
– Answer:
Pons

8. 8
• Identify the area
of the brain
marked with an
arrow in the
picture to the
right.
– Answer:
Cerebellum

9. 9
1 2
3 4
• Identify the
4 lobes of
the brain.
– Answer:
1. Occiptal
2. Parietal
3. Frontal
4. Temporal

10. 10
• What is the
function of the
corpus callosum?
– Answer:
connects right &
left
hemispheres of brain

11. 11
1 2
3 4
• Name the lobe &
match the function:
– Hearing
– Vision
– Concentration
– Understanding
speech
Temporal:hearing Parietal:
understanding
speech
Frontal: Occiptal:
concentration vision

12. 12
• What part of
neuron is
indicated by the
arrow?
– Answer:
Dendrite
• What is the
function of this
portion of the
neuron?
– Answer:
mainreceptive
surface for
electrical
impulses

13. 13
• What part of
neuron is
indicated by the
arrow?
– Answer:
Axon
• What is the
function of this
fiber?
– Answer: it
conducts
impulses away
from the cell
body

14. 14
• What do the tiny
circles in the
space represent?
– Neurotransmitter
• What is the name of the
space between the 2
neurons?
– Answer: Synapse

15. 15
• What part of an
action potential
is illustrated by
the red line?
– Answer:
Depolarization

16. 16
• What is the
name of the
gaps between
Schwann cells?
– Answer:
Nodes of
Ranvier
• Grey Matter
or White
Matter, which
is myelinated?
– Answer:
White Matter

17. 17
• Name that
structure
– Answer:
Pituitary Gland

18. 18
• Which area is the
postsynapic
neuron, which is
presynapic?
• What structure is
located at the arrow?
– Answer: Mitochondrion

19. 19
• What part of an
action potential
is illustrated by
the red line?
– Answer:
Repolarization

20. 20
• What are the
layers of the
meninges from
innermost to
outermost.
– Answer:
Pia, Arachnoid,
Dura
• What area
forms
cerebrospinal
fluid?
– Answer:
Choroid Plexus

21. 21
• Between which
layers of the
meninges is CSF
found?
– Answer:
Arachnoid and
Pia
• Which has a
lower
conductivity for
impulses, grey
or white matter?
– Answer:
Grey

22. 22
• Name the type of
fast conduction
when impulses
jump from node
to node (Ranvier)
– Answer:
Saltatory
• Where is the
greatest
concentration of
Na+, inside or
outside axon?
– Answer:
Outside

23. 23
• What is
happening
during this
phase?
– Answer:
Na+ rushes
in

24. 24
• What is
happening
during this part
of the ap?
– Answer:
K+ rushing out