NERVOUS SYSTEM Flashcards

(54 cards)

1
Q

Central Nervous System (CNS) contains:

A

brain
spinal cord

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2
Q

functional division nervous system

A

somatic efferent - skin &muscle

visceral efferent - cardiac muscles & smooth muscles

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3
Q

2 system that take care of the bodily activities:

A

nervous system
endocrine system

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4
Q

involuntary nervous system

A

autonomic nervous system

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5
Q

Peripheral Nervous System (PNS) contains

A

a. Cranial nerves (12 pairs)
b. Spinal nerves (31 pairs)
c. Autonomic nervous system

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6
Q

Functions of nervous system

A
  1. Sensory input
  2. Integration
  3. Control of muscles and glands
  4. Mental activity
  5. Homeostasis
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7
Q

TYPES OF CELLS OF THE NERVOUS SYSTEM

A

Neuron
Neuroglia

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8
Q
  • for transmission of impulse
  • basic unit of nervous system
  • Nerve cells
  • Require oxygen and
    glucose
  • Receive input, process
    input, produce a
    response
A

Neuron

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9
Q

Neuron Structures

A

Dendrite
Cell body
Axon

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10
Q

receives stimulus from other neurons or sensory receptors

A

Dendrite

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11
Q

processes stimulus; contains a nucleus

A

Cell body

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12
Q

transmits stimulus to a gland, muscle, organ, or other neuron

A

Axon

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13
Q

Types of Neurons

A

Multipolar
Bipolar
Pseudo-Unipolar

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14
Q

§ many dendrites and a single axon
§ Ex. CNS and most motor neurons

A

Multipolar

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15
Q

§ two dendrites and a single axon
§ Ex. CNS and most motor neurons

A

Bipolar

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16
Q

§ one axon and no dendrites
§ Ex. Sensory neurons

A

Pseudo-Unipolar

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17
Q

§ Supporting cells for neurons
§ More numerous than neurons
§ Can divide to produce more cells

A

Neuroglia Cells

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18
Q

Types of Neuroglia

A

Astrocytes
Ependymal Cells
Microglia
Oligodendrocytes
Schwann cells

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19
Q

§ cell that provides nourishment
§ star-shaped
§ most abundant
§ form blood-brain barrier (BBB)

A

Astrocytes

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20
Q
  • support group
  • produce and circulate cerebrospinal fluid (CSF)
A

Ependymal Cells

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21
Q
  • take care for cells that worn out cells
  • help remove bacteria and cell debris from CNS
A

Microglia

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22
Q
  • responsible for myelin sheath
  • produce myelin sheath in CNS
A

Oligodendrocytes

23
Q

produce myelin sheath in PNS

A

Schwann cells

24
Q
  • an insulator / prevent the passage of nerve impulse.
  • fatty, protective wrapping around axons
A

myelin sheath

25
- doesn't contain myelin sheath in axons area - gaps in myelin sheath where action potentials develop
Nodes of Ranvier
26
- means jump - jumping of action potentials
Saltatory conduction
27
disease of myelin sheath that causes loss of muscle function
Multiple sclerosis
28
2 types of process
dentrites axons
29
- collection of dendrites and cell bodies - H-shaped central
Gray matter
30
- myelinated nerve fibers few, if any cell bodies - collection of axons and their myelin sheath
White matter
31
contains Oligodendrocytes, Nerve tracts, Nuclei
central nervous system (CNS)
32
contains Schwann cells, Nerves, Ganglion
peripheral nervous system (PNS)
33
- connection between neurons - found in autonomic - where an axon attaches to a muscle, gland, organ, or other neuron involved with release of neurotransmitters
Synapse ( ganglionic)
33
receiving cells
post-synaptic
34
sending cells
pre-synaptic
35
example of neurotransmitter
neuro epinephrine
36
first cranial nerves
olfactory nurve
37
second cranial nerve
optic nervous
38
sensory of all system except the sense of smell or olfactory
thalamus
39
sensor of all
cortex
40
cluster of nerve cell bodies
inside CNS outside CNF
41
called nucleus or nuclei ex. thalamic nuclei
inside CNS
42
called the ganglion or ganglia ex. DRG
outside CNS
43
5 line separator of the brain
central fissure rolando parito-occipital fissure lateral selvian fissure transvers fissure island of reil or insula fissure
44
female weight of brain male weight of brain
1250g 1380g
45
- approx ______ brain weight - brain is ______ of your body weight
2%
46
- buried with in lateral sulcus - plans / coordinates articulations of speech
insula / island of reil
46
- crossing nerves fiber - allows sharing of learning & memory
corpus callusum
47
primary sensory area
broadman area 312 or BA 312
47
motor speech area
broca's area
48
pag na identify mo yung object
stereognosis
49
NEVER BACK DOWN, NEVER WJHATTT!!!!!!!!!???????????
NEVER GIVE UP!!!!!!!!!!!!!!!!!!!
49
pag hindi na-identify yung object
astereognosis
50