Superficial Back Learning Objectives

Question 1

superficial extrinsic back muscles

Answer 1

-trapezius
-latissimus dorsi
-levator scapulae
-rhomboids

Question 2

intermediate extrinsic back muscles

Answer 2

-serratus posterior superior
-serratus posterior inferior
respiration and proprioception

Question 3

superficial intrinsic back muscles

Answer 3

-splenius muscles: capitis and cervicis

Question 4

intermediate intrinsic back muscles

Answer 4

-errector spinae: spinalis (most medial), longissimus, iliocostalis (most lateral)
vertebral column movement, stabilization

Question 5

deep intrinsic back muscles

Answer 5

transversospinales: semispinalis, multifidus & rotatores
vertebral column movement, stabilization

Question 6

extrinsic back muscles

Answer 6

-superficial (limb movement) and intermediate (respiration) muscles
-inn. by anterior (ventral) rami of spinal nerve
-intermediate: posterior nerve is intercostal nerve

Question 7

intrinsic back muscles

Answer 7

-deeper; include muscles that specifically act on vertebral column, producing its movements and stabilization
-inn. by posterior (dorsal) rami of spinal nerve (all layers)