Lumbar spine Flashcards

1
Q

typical lumbar vertebrae

A

L1-L4

w MAMILLARY PROCESS

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2
Q

atypical lumbar vertebrae

A

L5

TRANSITIONAL

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3
Q

ligaments in order from anterior to posterior

A

ALL
PLL
lig flavum
interspinal
supraspinous

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4
Q

where in the lumbar spine does the spinal cord end

A

L1-L2 then becomes cauda equina “horses tail”

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5
Q

2 joints in lumbar spine

A

facet - between vertebral arches

intervertebral - between vertebral bodies

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6
Q

what ligaments are unique to the lumbar spine

A

iliolumbar ligaments
protect the lumbosacral joint

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7
Q

lumbar spine extension is coupled w what

A

sacral nutation
anterior sacral tilt

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8
Q

lumbar flexion is coupled w what

A

sacral counternutation
posterior sacral tilt

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9
Q

C2-C5 coupled movements

A

IPSILATERAL

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10
Q

T6-T5 coupled movements

A

CONTRALATERAL

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11
Q

what are the abdominal muscles

A

internal obliques
external obliques
transverse abdominis
rectus abdominis

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12
Q

O’s and I’s external obliques

A

external surface rib 5-12

linea alba, pubic tubercles
anterior 1/2 iliac crest

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13
Q

actions of internal and external obliques

A

flexion and lateral flexion

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14
Q

O’s and I’s internal obliques

A

ant and mid 1/3 iliac crest, lat 2/3 inguinal ligament

borders ribs 10-12, linea alba

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15
Q

O’s and I’s transverse abdominis

A

costal cartilages 7-12
thoracolumbar fascia
iliac crest
inguinal ligament

linea alba, pubic crest

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16
Q

O’s and I’s rectus abdominis

A

pubic crest, pubic symphysis

costal cartilage ribs 5-7, xiphoid process

17
Q

O’s and I’s pyramidalis

A

pubic crest

linea alba

18
Q

what 2 muscles form the iliopsoas

A

psoas major
iliacus

19
Q

O and I iliacus

A

superior 2/3 iliac fossa, internal lip iliac crest, ala, iliolumbar/sacroiliac ligaments

distal to lesser trochanter

20
Q

what innervates the iliacus

A

femoral nerve

21
Q

what innervates the psoas major/minor

A

lumbar plexus

22
Q

as a group what do the abdominal muscles do

A

compress and stabilize abdomen

23
Q

what rotation does the internal oblique perform

A

ipsilateral rotation of the trunk

24
Q

what rotation does the external obliques do

A

contralateral rotation

25
what actions does the rectus abdominis do
trunk flexion posterior pelvic tilt compress and stabilize abdomen
26
what innervates the oblique muscles
intercostal nerve ventral rami
27
what is the linea alba
fibrous white line made of CT that runs down the midline of the abdomen from xiphoid process to pubic symphysis
28
what structure lives in the linea alba
the umbilicus
29
what is a prime mover for hip flexion
iliopsoas - tested as a group can cause hyperlordosis
30
O and I rotatores lumborum
TP's of L1-L5 base of SP and lamina 1-2 segments above origin
31
O and I multifidus lumborum
TP(mamillary process) L1-L5 SP's 3-4 segments above
32
O and I semispinalis thoracis
TP T6-T12 SP C6-T4
33
spinalis thoracis
SP's T11-L2 SP T1-T8
34
what does the iliolumbar ligament span from
L5 to ilium