13. Back & Spine ANA Flashcards

1
Q

Functions of back & spine

A

Supports head
Important attachment of muscles & ligaments
Ribs attachment
Encloses & protects spinal cord
Nag provide ng mobility/flexibility of trunk
Ability to transmit weight of head & body to LE

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2
Q

Ave length of vertebral column

A

M= 72 cm
F= minus 7 to 10 cm from male

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3
Q

total number of vertebra in infants

A

33

C7
T12
L5
S5
Coccygeal 5

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4
Q

total number of vertebra in adults

A

26

C7
T12
L5
S- fused to 1
Coccygeal - fused to 1

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5
Q

Orientation & angle of facet jts in cervical vertebra

A

Sup: sup & post
inf: inf & ant
>45deg

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6
Q

Orientation & angle of facet jts in thoracic vertebra

A

Sup: post & lat
inf: ant & medial
>60 deg

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7
Q

Orientation & angle of facet jts in lumbar vertebra

A

Sup: medial
inf: lateral
>90 deg

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8
Q

Part of IV disc that is gel like material

A

nucleus pulposus

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9
Q

Part of IV disc that is fibrocartilagenous pulp

A

annulus fibrosus

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10
Q

Protein found in nucleus pulposus

A

proteoglycan

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11
Q

Protein found in annulus fibrosus

A

Lamellae angles at 30 deg

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12
Q

What structures attaches to the outer surface of the annulus fibrosus

A

sharpey’s fibers

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13
Q

this is the force generated by the annulus once it is stretched

A

Hoop’s stretch

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14
Q

At what level can you find the widest pedicles?

A

L5

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15
Q

At what level can you find the narrowest pedicles?

A

T5

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16
Q

What comprises the joints of the Von Luschka (cervical)

A

vertebral body of the superior vertebra & the paired base of pedicles

17
Q

structures found at the level of the C6

A

Junctions larynx-trachea
Junctions pharynx-esophagus
middle cervical sympathetic ganglion
laryngeal prominence
1sts ring of trachea
suprasternal notch

18
Q

What is the superior continuation of PLL

A

tectorial membrane

19
Q

PLL is considered incomplete at what level?

A

below L2

20
Q

Thi sis also known as the yellow lligament

A

ligamentum flavum

21
Q

this ligament limits skull & atlas rotationon the axis

A

alar ligament

22
Q

this ligament holds the dens against the atlas

A

transverse ligament

23
Q

this ligament prevents post subluxation of dens when fractured

A

transverse ligament

24
Q

AKA bandage muscle

A

splenius

25
Q

chief extensor of the spine

A

erector spinae

26
Q

corset muscle

A

transversus abdominis