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Anatomy- Back & Extremities > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

Anterior horn contains

A

Lower motor neuron cell bodies

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2
Q

Anterior roots contain

A

Lower motor axons

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3
Q

Posterior horn contains

A

Sensory neuron cell bodies

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4
Q

Posterior roots contain

A

Sensory axons

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5
Q

Posterior root ganglion contains

A

Sensory neuron cell bodies

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6
Q

Spinal nerve contains

A

Mixed motor and sensory axons

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7
Q

Anterior rami contains

A

Motor & sensory axons to muscles and skin of anterior trunk + limbs

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8
Q

Posterior rami contains

A

Motor & sensory axons to muscles + skin of the back

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9
Q

Dermatome is sensory region of skin supplied by _________.
A) 3 spinal nerves
B) 2 spinal nerves
C) 1 spinal nerve

A

C) 1 spinal nerve

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10
Q

C4 is a dermatome for

A

Top of shoulder

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11
Q

C6 is dermatome for

A

Thumb

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12
Q

C8 is dermatome for

A

5th digit of hand

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13
Q

T4 is dermatome for

A

Nipple

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14
Q

T10 is dermatome for

A

Umbilicus

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15
Q

L1 is dermatome for

A

Inguinal region

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16
Q

L4 is dermatome for

A

Medial heel and ankle

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17
Q

L5 is dermatome for

A

Antero-lateral leg and dorsum of foot

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18
Q

S1 is dermatome for

A

Posterior lateral lower limb

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19
Q

S2 is dermatome for

A

Posterior medial lower limb

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20
Q

Myotome

A

Muscle fibers supplied by a single spinal nerve

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21
Q

Inguinal is located where

A

Crease between abdomen and thigh

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22
Q

There are __________ CERVICAL SPINAL NERVES. (Number)

A

8

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23
Q

There are _________ THORACIC SPINAL NERVES. (Number)

A

12

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24
Q

There are ______ LUMBAR SPINAL NERVES. (Number)

A

5

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25
Q

There are ________ SACRAL SPINAL NERVES. (Number)

A

5

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26
Q

Cervical spinal nerves are named after the vertebrae it comes out of:
A) superiorly
B) inferiorly

A

A) Superiorly

27
Q

Thoracic, Lumbar, Sacral & coccygeal sections of the spinal cord are named after the vertebrae
A) superiorly
B) inferiorly

A

B) inferiorly

28
Q

How many meninges layers protect the Spinal cord and CNS? What are their names?

A

3- dura mater, arachnoid mater, pia mater

29
Q

What ligament separates the anterior and posterior root of the spinal cord?

A

Denticulate ligament

30
Q

Subarachnoid space is filled with______.

A

CSF

31
Q

The spinal cord length is __________ than the spinal vertebrae length.
A) longer
B ) shorter

A

Shorter- it only goes to ~L2

32
Q

The spinal roots that go below the ~L2 are called the ______.

A

Cauda equina

33
Q

Conus medullaris

A

Tip of the spinal cord

34
Q

Filum terminale anchors itself to the _______ by a thread of______.

A

Coccyx ; pia mater

35
Q

Lumbar puncture aka ________.

A

Spinal tap

36
Q

Each spinal nerve exist through the __________.

A

Intervertebral foramen

37
Q

Radicular pain radiates along a _______.

A

Dermatome

38
Q

Is non-radicular pain caused by nerve injuries?

A

NO

39
Q

HNP in the lumbar region typically affects the spinal nerve _________ it.
A) above
B) below

A

Below

40
Q

HNP between C7 and T1 would affect what nerve?

A

C8

41
Q

Straight leg test will check for what kind of pain?

A

Radicular pain

42
Q

How many posterior spinal arteries are there?

A

2

43
Q

How many anterior spinal arteries are there?

A

1

44
Q

How many posterior spinal veins are there?

A

1

45
Q

How many anterior spinal veins are there?

A

1

46
Q

Aponeurosis is similar to

A

Tendon

47
Q

Thoracolumbar fascia is a connective tissue structure that acts as aponeurosis for __________ & ____________.

A

Latissimus dorsi & serrated posterior inferior muscles

48
Q

Thoracolumbar fascia is the origin for

A

Erector spinae muscles

49
Q

Trapezius proximal attachments

A

External occipital protuberance
Cervical to mid-thoracic spinous process

50
Q

Trapezius distal attachments

A

Clavicle
Acromion
Spine of scapula

51
Q

Latissimus dorsi proximal attachments

A

Mid-thoracic to sacral spinous processes
Iliac crest

52
Q

Latissimus dorsi distal attachment

A

Intertubercular sulcus

53
Q

Levator Scapulae proximal attachments

A

Transverse processes of upper cervical vertebrae

54
Q

Levator Scapulae distal attachment

A

Superior angle of scapula

55
Q

Rhomboid Major and Minor proximal attachments

A

Lower cervical to upper thoracic spinous processes

56
Q

Rhomboid major and minor distal attachment

A

Medial border of scapula

57
Q

Superficial layer of intrinsic back muscles is categorized by being called

A

Splenius muscles
(Cavities and Cervicis)

58
Q

Intermediate layer of intrinsic back muscles are categorized by being called

A

Erector Spinae Muscle group
(Spinal is, Longissimus & Iliocostalis)

59
Q

Erector spinae muscle group originates from where?

A

Iliac crest

60
Q

Deep intrinsic back muscles especially are categorized by being called

A

Transversospinalis muscle group
(Rotators thoracis, semispinalis capitis, semispinalis cervicis, multifudus lumborum)

61
Q

Rotatores thoracis helps to do what?

A

Stabilize

62
Q

Minor deep intrinsic muscles of the back are more involved with ______ rather than movement.

A

Propioception
(Supoccipital muscles, interspinalis, levatores costorum, intertransversarii)

63
Q

Myodural bridge

A

Connective tissue originating from rectus capitis posterior minor that pierces posterior atlanto-occipital membrane to fuse with dura mater.

64
Q

Myodural bridge should be considered when treating a headache because

A

It has a direct connection between pain-sensitive durability and posterior neck muscles

Anatomy- Back & Extremities (10 decks)

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