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Multifidus Muscle

image descriptionMultifidus:

Unlabelled image of the muscles of the back.
Labelled image of the semispinalis capitis, longissimus capitis, spinalis cervicis, longissimus cervicis, longissimus thoracis, spinalis thoracis, and multifidus muscles
Labelled image of the semispinalis capitis, spinalis cervicis, spinalis thoracis, and multifidus muscles
Labelled image of the semispinalis capitis, semispinalis thoracis, and multifidus muscles
Labelled image of the multifidus muscle.
Muscularis Multifidus.
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image descriptionAttachments of Multifidus:  Origin & Insertion

Origin: Posterior sacrum (next to foramina); superior iliac spine, mammillary processes of lumbar vertebrae, transverse processes of thoracis vertebrae, and articular processes of C4-C7.

Insertion: Spinous processes of vertebrae (except C1), 2-4 bones above origin.

Unlabelled image of the muscles of the back.
Insertion and origin of the multifidus muscle.
Insertion and origin of the multifidus muscle.
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Actions of the Multifidus Muscle:

  1. Bilateral action: image descriptionextends vertebrae (except C1), 2-4 bones above origin.
Extensions of the vertebral column animation slide 4
Extensions of the vertebral column animation slide 3
Extensions of the vertebral column animation slide 2
Extensions of the vertebral column animation slide 1
Extension of vertebrae.
  1. Unilateral action: image descriptionlaterally flexes and image descriptioncontralaterally rotates vertebral column.
Lateral flexion of the vertebral column animation slide 1
Lateral flexion of the vertebral column animation slide 2
Lateral flexion of the vertebral column animation slide 3
Lateral flexion of the vertebral column animation slide 4
Lateral flexion of the vertebral column animation slide 5
Lateral flexion of the vertebral column.
Contralateral rotation of the vertebral column animation slide 1
contralateral rotation of the vertebral column animation slide 2
Contralateral rotation of the vertebral column animation slide 3
Contralateral rotation of the vertebral column animation slide 4
Contralateral rotation of the vertebral column animation slide 5
Contralateral rotation of the vertebral column.

Nerve Supply to Multifidus:

  1. dorsal rami of spinal nerves.

Overview of the Muscles of the Back:

Test yourself image answers hidden.
Test yourself image showing answers: trapezius, deltoid, latissimus dorsi
Test yourself image showing answers: supraspinatus, infraspinatus, teres minor, teres major
Test yourself image showing answers: levetor scapula, rhomboids minor, rhomboids major, serratus anterior
Test yourself image showing answers: serratus anterior superior, serratus posterior inferior
Test yourself image showing answers: sternocleidomastoid, splenius capitis, splenius cervicis, iliocostalis cervicis, iliocostalis thoracis, external intercostals, longissimus thoracis, spinalis thoracis, iliocostalis lumborum
Test yourself image showing answers: semispinalis capitis, splenius capitis, splenius cervicis, iliocostalis cervicis, iliocostalis thoracis, longissimus thoracis, spinalis thoracis, iliocostalis lumborum
Test yourself image showing answers: semispinalis capitis, longissimus capitis, spinalis cervicis, splenius cervicis, iliocostalis cervicis, iliocostalis thoracis, longissimus thoracis, spinalis thoracis, iliocostalis lumborum
Test yourself image showing answers: semispinalis capitis, longissimus capitis, spinalis cervicis, longissimus cervicis, iliocostalis cervicis, iliocostalis thoracis, longissimus thoracis, spinalis thoracis, iliocostalis lumborum
Test yourself image showing answers: Semispinalis capitis, longissimus capitis, spinalis cervicis, longissimus cervicis, longissimus thoracis, spinalis thoracis, multifidus
Test yourself image showing answers: semispinalis capitis, spinalis cervicis, spinalis thoracis, multifidus
Test yourself image showing answers: Semispinalis capitis, semispinalis thoracis, multifidus
Test yourself image showing answers: multifidus
Test yourself image showing answers: origin, insertion
Review the muscles of the back and test yourself.
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