vertebrae ribs and paravertebral muscle Flashcards by rebecca dion

function of vertebral column

Supports trunk and weight of body

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the VC extend from what to what

Extends from base of skull to pelvis

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function of intervertebral disc

shock absorption

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vertebra are held in place by

Intervertebral Discs • Intervertebral ligaments

* Deep muscles of the back

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function of vertebra

Enclose/protect spinal cord
• Support head
• Attachment for ribs, pelvis, muscles of the back

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what are the 5 region of the VC and how many vertebral in each

Divided into 5 regions: • 7 Cervical
12 Thoracic
5 Lumbar
5 Sacral (fused)
4 (3-5) coccygeal (fused)

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what make the vertebral arch

pedicle and lamina

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type of joint of the vertebra

Zygapophysealjoints (D.S.A.)

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which vertebrae is smaller and lighter

Cervical

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which vertebra are the most mobile of the C-spine

C4-C5, C5-C6

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which C-spine vertebra are often bifid

c2-c6

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which vertebrae provide support for the head

cervical

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atlas articulate with what

occipital condyle

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which vertebra doesn’t have a body

atlas

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which vertebrae allow for flexion and extension motion of head (yes)

atlas

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function of atlas

Allows for flexion and extension motion of head (nodding “yes”)

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carateristic of atlas

absence of body

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characteristic of axis

odontoid process + dens

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c1 is atlas or axis

atlas

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which vertebra is affected in whiplash injuries

axis (C2)

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function of axis

When rotating from side to side (“no”), atlas pivots

around the odontoid process

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which vertebra is the only one articulate with ribs

Thoracic

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which type of joint is the join btw thoracic and ribs

costovertebral

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characteristic of thoracic vertebra

Unique to have smooth facets on their bodies and t-process to articulate with Except T11-T12
Long pointed spinous process projecting down

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what limited the mvt in T-spine

long pointed spinous process

which T-spin vertebra does avec smooth facet on their bodies

T11-T12

which vertebra is the thicker and larger one

lumbar

function of L4-L5 and L5-S1

allow significant flexion and extension movements therefore disc/facet degeneration are common at those levels

what happen at the level of L1

the spinal cord ends and the cauda equina begins.

wherethe spinal cord ends and the cauda equina begins

which bone form the posterior part of pelvis

sacrum

the sacrum fused around the aged of

is the spinous still present in the sacrum

yes as the median sacral crest

what the opening along side of median sacral crest

Dorsal sacral foramina | • Ventral sacral foramina

around which aged the coccyx is fused

20-30

spinal curve are affected by what

* Posture * Activity * Obesity * Pregnancy • Trauma * Disease

what is lordosis

exaggerated curving in the L-spine

what is kyphosis

exaggerated curving in the T-spine

what is scoliosis

lateral deviation of the spine from the midline

name of the outer fibrous ring of intervertebral disc

annulons fibroses

which vertebra has no dises

No discs are found between the occiput and C1, and between C1 and C2.

where is the last disc found

btw | S5 and co1

name of the inner highly elastic structure of intervertebral disc

nucleus pulposus

what is the annulus fibrosus

Outer fibrous ring

what is nucleus pulposus

Inner highly elastic structure

what is include in the thoracic cage

T-vertebrae, sternum, and ribs

whatForms partial enclosure around organs of chest

thoracic cage

what is support by thoracic cage

shoulder girdle and upper limbs

what is sealed by the thoracic diaphragm

inf portion of thoracic cage

what is the sternum and where is located

Flat, narrow bone located along the vertical midline of chest

3 major part of sternum

manubrium (sup) body (middle) xyphoid process (inf)

which part of sternum is located at 1st ribs

manubrium

which part of sternum is located at ribs 2-10

body

the xyphoid process ossifies complete by age

sternum articulate with

Articulates with 2 clavicles superiorly & ribs by way of cartilages along its lat. borders

how many pair of ribs is there

each ribs pair attached to

T-vertebraeon body and | transverse process)

the ribs attach to sternum via

costal cartilage

which ribs are true, false and floating

true= 1st 7 pair remaining 5 paire= false last 2 pairs= floating

characteristic of a typical ribs

* Shaft * Head * Tubercle * Costal groove

space btw each ribs =

intercostal space

ribs mvt = % of respiratory effort

function of superficial of paravdrtebral muscle

control limb mvt

function of intermidiate group

control respiratory mvt

most nerve supply of superficial paravertebral muscle

from ventral ramis of cervucal nerves

which muscle is part of paravertebral superficial group

Trapezius | • Latissimus dorsi • Levator scapulae • Rhomboids

which muscle is part of peravertebral intermediate muscle group

Serratus posterior superior (deep to rhomboids)Serratus posterior inferior (deep to latissimus dorsi)

which muscle is deep to rhomboid

Serratus posterior superior

which muscle is deep to lat dorsi

Serratus posterior inferior

what is innervated by last 4 intercostal nerves

serratus posterior interior

what innervated the serrates posterior superior

1st 4 intercostal nerves

what innervated the deep intrinsic paravertebral muscle

dorsal rami of spinal nerve

function of deep paravertebral muscle

Maintain posture, control movements of the vertebral column

which group of paravertebral muscle extend from pelvis to skull

deep

attachement of deep muscle paravertebral medially

attaches medially to ligamentum nuchae, spinous process, supraspinous ligament and median sacral crest

attachement of deep muscle paravertebral muscle laterally

attaches laterally to cervical and lumbar transverse process and rib angles

what make the thoracolumbar fascia

thoracic and lumbar part of deep paravertebral muscle groupe

where is located the splenius muscle

posterolateral aspect neck

what covers the splenius

covers vertical neck muscles, hold deep muscles in position

the splenius is part of which layer of paravertebral muscle

superficial (intrisct)

function of erector spina

chief extensor muscles of vertebral column

what are the 3 muscle that make the erector spina group

* Iliocostalis (lateral) * Longissimus (intermediate) * Spinalis (medial)

name the 3 muscle of erector spinae from lateral to medial

* Iliocostalis (lateral) * Longissimus (intermediate) * Spinalis (medial)

erector spina is part of which layer of paravrtebral muscle

intermediate instruct

which muscle make up the deep intrinsic muscle

* Semispinalis (capitis, thoracis, cervicis)* * Multifidus* * Rotatores* * Interspinalis * Intertransversarii * Levator Costarum

what is an other name for the deep inartistic muscle

transversospinal muscle group

vertebrae ribs and paravertebral muscle Flashcards

(86 cards)