Review Note
Last Update: 07/30/2024 08:26 AM
Current Deck: 01 Anki Avengers::LEAPMed 01::01ANA::23.2Muscular (Bryan Edition)::01 Head, Neck, and Trunk::Action
PublishedCurrently Published Content
MuscleName
Longissimus (iddupex3)
OccludedImage
Origin
Origin (inferior attachment):
The erector spinae comprise the iliocostalis, longissimus, and spinalis. They arise by a broad tendon from the posterior aspect of the iliac crest, the posterior aspect of the sacrum, the sacral and inferior lumbar spinous processes, and the supraspinous ligament.
Logissimus:
Capitis: C4–T5 transverse processes
Colli: T1–T5 transverse processes
Thoracis: L1–L5 transverse processes, sacrum, posterior iliac crest
Capitis: C4–T5 transverse processes
Colli: T1–T5 transverse processes
Thoracis: L1–L5 transverse processes, sacrum, posterior iliac crest
Insertion
Insertion (superior attachment)"
Longissimus: Capitis: mastoid process Colli: C2-C6 transverse processes Thoracis: T1–T12 transverse processes, last six ribs
The iliocostalis muscles attach to the angles of lower ribs and the cervical transverse processes.
The spinalis muscles attach to the spinous processes in the upper thoracic region and midcervical region, and to the skull.
Longissimus: Capitis: mastoid process Colli: C2-C6 transverse processes Thoracis: T1–T12 transverse processes, last six ribs
"The longissimus muscles attach to (thoracic/cervical) transverse processes, ribs (portion between the tubercles and angles), and mastoid process."
(mnemonic: start with transverse process, work out mastoid and last six ribs)
Innervation
Innervation:
By dorsal rami of the respective spinal nerves in each region.
Actions
Action:
logissimus:
Thoracis and Cervicis
act to extend and
laterally flex
Vertebral Column
Acting on one side,
causes Lateral
Flexion
Capitis extends and
rotates the head
toward one side
Together, these muscles extend the vertebral column and head.
Unilaterally, they bend the vertebral column laterally.
Attachments
Extra
Plate
Origin Pictures
Insertion Pictures
Innervation Pictures
Muscle Table
Current Tags:
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