Nervous System Flashcards

(34 cards)

1
Q

Motor Neurons

A

Efferent

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2
Q

Sensory Neurons

A

Afferent

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3
Q

Interneurons

A

neuron between neuron

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4
Q

What three locations are upper motor neurons located?

A
  1. Cerebral Cortex
  2. Brainstem
  3. Cerebellum
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5
Q

Where are Lower motor neurons located?

A

The anterior horn of the spinal cord

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6
Q

What is the function of Axons in sensory neurons?

A

To send signals away from the cell body

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7
Q

The portion that covers the axon?

A

Myelin

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8
Q

____ conducts efferent impulses from spinal cord

A

Motor endplates

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9
Q

In sensory neurons, ___ are branches that receive impulses.

A

Dendrites

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10
Q

The small gap between an axon, dendrite, interneuron, and other structures.

A

Synapse

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11
Q

The chemical tat is released at a synapse that activates or inhibits that structure on the other side of the synapse

A

Neurotransmitter

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12
Q

Unmyelinated cell bodies and bodies

A

grey matter

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13
Q

myelinated cell bodies and nerve dibers

A

white matter

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14
Q

The type of protection in the CNS?

A

Meninges – 1. Dura mater
2. arachnoid
3. pia matter

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15
Q

What are the 3 main parts of the brain?

A
  1. cerebrum
  2. brainstem
  3. cerebellum
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16
Q

What connects the right and left hemisphere of the brain?

A

corpus callosum

17
Q

Frontal lobe functions?

A

movement, speech, personality

18
Q

Parietal lobe functions?

19
Q

occipital function?

20
Q

temporal lobe function?

A

behavior, hearing, language

21
Q

This area deep in the brain is responsible for relaying sensations and pain perception

22
Q

The hypothalamus controls … ?

A

Hormones and behavior

23
Q

The basal ganglia is responsible for?

A

coordinating movements

24
Q

Name the three parts in the brainstem

A
  1. midbrain
  2. pons
  3. medulla oblongata
    It is also responsible for connecting the brain to the spinal cord
25
Visual reflexes is found?
Midbrain
26
The pons functions
transverse nerve fibers connecting nuclei to cerebellum
27
The medulla oblongata
regulates breathing, blood pressure, heart rate
28
The spinal cord begins and ends at?
Starts at Medulla and ENDS at L2. It then becomes the conus medullaris
29
Upper plexus:
nerves that control the upper limbs, like arms
30
Lower plexus:
Lower extremities, like the legs.
31
Deramatomes:
Areas of skin where there are sensory fibers that cordinate with the plexus and peripheral nerve
32
All muscles innervated from a specific spinal cord level or specific peripheral nerve
Myotome
33
How does congential defects effect the Centeral Nervous System?
It can create spina bifida and cerebral palsy
34
This pathology affects spinal cord by causing an individual to become paraplegic or tetraplegic.
Spinal Cord Injury (complete or incomplete)