Nervous System Flashcards

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?

A

sensory

19
Q

occipital function?

A

vison

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

A

Thalamus

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
Q

Visual reflexes is found?

A

Midbrain

26
Q

The pons functions

A

transverse nerve fibers connecting nuclei to cerebellum

27
Q

The medulla oblongata

A

regulates breathing, blood pressure, heart rate

28
Q

The spinal cord begins and ends at?

A

Starts at Medulla and ENDS at L2. It then becomes the conus medullaris

29
Q

Upper plexus:

A

nerves that control the upper limbs, like arms

30
Q

Lower plexus:

A

Lower extremities, like the legs.

31
Q

Deramatomes:

A

Areas of skin where there are sensory fibers that cordinate with the plexus and peripheral nerve

32
Q

All muscles innervated from a specific spinal cord level or specific peripheral nerve

A

Myotome

33
Q

How does congential defects effect the Centeral Nervous System?

A

It can create spina bifida and cerebral palsy

34
Q

This pathology affects spinal cord by causing an individual to become paraplegic or tetraplegic.

A

Spinal Cord Injury (complete or incomplete)