Longissimus Muscles (Longissimus Capitis, Cervicis, and Thoracis)

Question 1

Longissimus Muscles (ORIGIN)- Capitis, Cervicis, Thoracis

Answer 1

Capitis: Transverse processes of the upper thoracic vertebrae and lower cervical vertebrae

Cervicis: Transverse processes of the upper thoracic vertebrae

Thoracis: Common tendon attached to the iliac crest, sacrum, and lumbar vertebrae.

Question 2

Longissimus Muscles (INSERTION)- Capitis, Cervicis, Thoracis

Answer 2

Capitis: Mastoid process of the temporal bone

Cervicis: Transverse processes of C2-C6

Thoracis: Ribs between the tubercles and angles and transverse processes of thoracic vertebrae

Question 3

Longissimus Muscles (INNERVATION)

Answer 3

Posterior rami of the spinal nerves

Question 4

Longissimus Muscles (BLOOD SUPPLY)

Answer 4

Lateral sacral artery and posterior intercostal arteries

Question 5

Longissimus Muscles (ACTION)

Answer 5

Extending the back, bending the neck, and flexing the back and neck to the side