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Anatomy And Physiology > Chapter 13 > Flashcards

Chapter 13 Flashcards

1
Q

Meninges

A

Protective membrane on spinal cord

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2
Q

Dura matter

A

Superficial layer of protection of the meninges

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3
Q

Arachnoid layer

A

Spider web like middle layer of the meninges

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4
Q

Pia mater

A

Deepest layer of the meninges connected to the CNS

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5
Q

Where does the spinal cord end

A

Roughly L1/L2

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6
Q

Cervical enlargement

A

Upper section of the spinal cord. Arms and cervical spine

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7
Q

Lumbar enlargement

A

Lower area of the spinal cord. Legs and thoracic spine.

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8
Q

Cuada equina

A

Nerves at the bottom of the spinal cord. Horse tail.

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9
Q

White mater

A

Myelinated, outer layer

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10
Q

Gray mater

A

Not myelinated inner layer of spinal cord

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11
Q

How many segments in the spinal cord

A

31

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12
Q

Which side do sensory neurons come from

A

Posterior

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13
Q

Which side do motor neurons come from

A

Anterior

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14
Q

Four major plexuses

A

Cervical, brachial, lumbar, sacral

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15
Q

Cervical

A

Neck

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16
Q

Brachial

A

Upper trunk and arms

17
Q

Lumbar

A

Lower limbs and pelvic girdle

18
Q

Sacral

A

Lower limbs and pelvic girdle

19
Q

Dermatome

A

Responsible for nerves in specific regions to pinpoint nerve damage

20
Q

Radial nerve

A

Extensor on thumb side

21
Q

Ulnar nerve

A

Flexer on pinky side

22
Q

Median nerve

A

Pinches carpal tunnel

23
Q

Divergent

A

One signal to multiple

24
Q

Convergence

A

Multiple to one

25
Q

Serial

A

One to one

26
Q

Reverberation

A

Feedback loop

27
Q

Mono sympathetic

A

Sensory to motor

28
Q

Polysympathetic

A

Sensory to inter neurons to motor

29
Q

Reflexes

A

Involuntary and predictable

30
Q

Steps to a reflex arc

A
  1. Receptor detects stimuli
  2. Sensory neuron
  3. Processing from spinal cord
  4. Motor neuron
  5. Effector Carrie’s command
31
Q

Stretch reflex

A

Reflex test on knee

32
Q

Withdrawal reflex

A

Touching a hot pan and releasing

33
Q

Cross extensor reflex

A

Stepping on a tack with your foot

Anatomy And Physiology (18 decks)

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