Orgins and Insertions Back and Suboccipital region

Question 1

Name the origins of the semispinalis (capitis, cervicies, thoracis)

Answer 1

Arises from transverse processes of C4-T10 vertabrae

Question 2

Name the origins of the Multifidus

Answer 2

Posterior sacrum, posterior superior illiac spine of illium, aponeurosis of erector spinae, SI ligaments, mamillary processes of lumbar vert, transverse processes of thoracic vertebrae, and articular processes of C4-C7

Question 3

Name the origins of the rotatores

Answer 3

Transverse processes of vert, are best developed in thoracic region

Question 4

Name the insertion of the splenius capitis and cervicis

Answer 4

Capitis: lateral 1/3 of superior nuchal line and mastoid process of temporal bone / Cervicis: posterior tubercle of transverse process of C1-C4

Question 5

Name the origin of the erector spinae muscles

Answer 5

SI ligaments, broad tendon of iliac crest, spinous process of inferior lumbar region and sacral, posterior surface of sacrum, supraspinous ligament

Question 6

Name the insertion of the illiocostalis

Answer 6

fibers run superiorly to the inferior angle of the ribs, connecting to the ribs and transverse process of cervical region

Question 7

Name the insertion of the rhomboid major and minor

Answer 7

Major: medial border of scapula, inferior to the root of the spine of the scapula and superior to the inferior angle / Minor: medial border at the level of the root of the spine of the scapula

Question 8

Name the insertion of all three scalenes

Answer 8

Anterior: 1st rib / Middle: superior surface of the first rib posterior to the sulcus for the sublcavian artery / Posterior: external border of second rib

Question 9

Name the insertion of the spinalis

Answer 9

spinous process of the upper thoracic region to cranium

Question 10

Name the insertion of the semispinalis capitis/cervicis

Answer 10

fibers run superiomedialy to spinous process of the upper thoracic region to the cranium

Question 11

Name three transversospinales muscles and explain what the name means

Answer 11

Semispinalis, rotatores, multifidus.. these muscles originate at the transverse process of the vert and insert on the spinous process

Question 12

What nerve innervates the suboccipital triangle?

Answer 12

C1 (suboccipital)

Question 13

What nerves run through the posterior cervical triangle?

Answer 13

spinal accessory nerve, trunks of brachial plexus (C5,C6,C7,C8,T1), posterior roots of the cervical plexus (C2,C3,C4)

Question 14

What artery runs along with the supraclavicular nerve?

Answer 14

Transverse cervical artery